Document:

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Exhibit 10.6

                                    SUBLEASE

     THIS SUBLEASE is made as of June 27, 2000 between INLAND REAL ESTATE
INVESTMENT CORPORATION, a Delaware corporation ("Sublessor") and INLAND REAL
ESTATE CORPORATION, a Maryland corporation, ("Sublessee").

                                    RECITALS

     WHEREAS, Sublessor is the tenant under a certain lease ("Prime Lease")
pertaining to an office building located at 2901 Butterfield Road, Oak Brook,
Illinois (the "Premises"). The square footage of the Premises is approximately
91,355 square feet.

     WHEREAS, Sublessor desires to sublet its interest into that portion of the
Premises set forth on Exhibit A attached hereto and made a part hereof ("Sublet
Premises") to Sublessee pursuant to the terms of this Sublease. The square
footage of the Sublet Premises is approximately 7,438 square feet.

     NOW, THEREFORE, the parties hereto agree as follows:

                                    ARTICLE I
                                 GRANT AND TERM

     Section 1.01. Grant. Sublessor, for and in consideration of the rents
herein reserved and of the covenants and agreements herein contained on the part
of the Sublessee to be performed, hereby leases to Sublessee, and Sublessee
hereby leases from Sublessor, the Sublet Premises for a period commencing on the
first day of July, 2000 ("Commencement Date") and expiring on the last day of
June, 2001 ("Initial Term") unless sooner terminated as provided herein.
Sublessee by its execution hereof expressly acknowledges that its rights
hereunder are subject to and expressly conditioned upon the rights of Sublessor
under the Prime Lease. Sublessee hereby agrees to abide by and comply with all
of Sublessor's obligations under the Prime Lease except for the payment of rent.
Sublessee acknowledges that it has received a copy of the Prime Lease and that
Sublessee has read and understands Sublessor's obligations thereunder. Sublessee
hereby indemnifies and holds Sublessor, its landlord and landlord's lender
harmless against any loss, liability or damages that any of them may incur by
virtue of the occupancy by Sublessee of the Sublet Premises. Sublessee shall
also comply with all the terms and conditions of any mortgage, deed of trust or
other lien or encumbrance to which this Sublease is subordinate or which
encumbers the Premises and that are to be performed during the term of this
Sublease by Sublessee; provided, however, Sublessee shall not be obligated to
make principal or interest payments under any such lien or encumbrance.
Sublessee has examined the Sublet Premises, knows the state and condition
thereof, and accepts the same "as is" and without any obligation of Sublessor to
make any repairs whatsoever to the Sublet Premises.

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     Section 1.02. Renewal Options. Provided no event of default by Sublessee
has occurred which remains uncured, Sublessee shall have the right and option to
extend the Initial Term for an additional one year period, commencing on July 1,
2001 and ending on June 30, 2002 ("First Renewal Term"). Such option must be
exercised, if at all, by Sublessee delivering written notice to Sublessor no
later than March 2, 2001 of its election to exercise such option. In addition,
and provided Sublessee has exercised its right to extend the Initial Term in
accordance with the immediately preceding sentence, at any time after the fifth
full month of the First Renewal Term, Sublessee may notify Sublessor in writing
that it elects to terminate this Sublease prior to the end of the First Renewal
Term, such termination to be effective 120 days following delivery of such
notice from Sublessee to Sublessor. If Sublessee has properly exercised its
option to extend the Initial Term, then Sublessee shall have the option to
extend the First Renewal Term for an additional one year period, commencing on
July 1, 2002 and ending on June 30, 2003 ("Second Renewal Term"). Such option
must be exercised, if at all, by Sublessee delivering written notice to
Sublessor no later than March 2, 2002 of its election to exercise such option.
In addition, and provided Sublessee has exercised its right to extend the First
Renewal Term in accordance with the immediately preceding sentence, at any time
after the fifth full month of the Second Renewal Term, Sublessee may notify
Sublessor in writing that it elects to terminate this Sublease prior to the end
of the Second Renewal Term, such termination to be effective 120 days following
delivery of such notice from Sublessee to Sublessor. If Sublessee has properly
exercised its option to extend the First Renewal Term, then Sublessee shall have
the option to extend the Second Renewal Term for an additional one year period,
commencing on July 1, 2003 and ending on June 30, 2004 ("Third Renewal Term").
Such option must be exercised, if at all, by Sublessee delivering written notice
to Sublessor no later than March 2, 2003 of its election to exercise such
option. In addition, and provided Sublessee has exercised its right to extend
the Second Renewal Term in accordance with the immediately preceding sentence,
at any time after the fifth full month of the Third Renewal Term, Sublessee may
notify Sublessor in writing that it elects to terminate this Sublease prior to
the end of the Third Renewal Term, such termination to be effective 120 days
following delivery of such notice from Sublessee to Sublessor. If Sublessee has
properly exercised its option to extend the Second Renewal Term, then Sublessee
shall have the option to extend the Third Renewal Term for an additional one
year period, commencing July 1, 2004 and ending on June 30, 2005 ("Fourth
Renewal Term"). Such option must be exercised, if at all, by Sublessee
delivering written notice to Sublessor no later than March 2, 2004 of its
election to exercise such option. In addition, and provided Sublessee has
exercised its right to extend the Third Renewal Term in accordance with the
immediately preceding sentence, at any time after the fifth full month of the
Fourth Renewal Term, Sublessee may notify Sublessor in writing that it elects to
terminate this Sublease prior to the end of the Fourth Renewal Term, such
termination to be effective 120 days following delivery of such notice from
Sublessee to Sublessor. If Subleseee has properly exercised its option to extend
the Third Renewal Term, then Sublessee shall have the option to extend the
Fourth Renewal Term for an additional one year period, commencing on July 1,
2005 and ending on June 30, 2006 ("Fifth Renewal Term"). Such option must be
exercised, if at all, by Sublessee delivering written notice to Sublessor no
later than March 2, 2005 of its election to exercise such option. In addition,
and provided Sublessee has exercised its right to extend the Fourth Renewal Term
in accordance with the immediately preceding sentence, at any time after the
fifth full month of the Fifth Renewal Term, Sublessee may notify Sublessor in
writing that it elects to terminate this Sublease prior to the end of the Fifth
Renewal Term, such termination to be effective 120 days

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following delivery of such notice from Sublessee to Sublessor. The failure of
Sublessee to deliver such written notice by no later than the dates specified in
this paragraph shall be deemed a waiver by Sublessee of its option to extend the
then applicable Term.

     Section 1.03. All of the terms and provisions contained in this Sublease
shall be applicable during the First Renewal Term, the Second Renewal Term, the
Third Renewal Term, the Fourth Renewal Term and the Fifth Renewal Term, if
applicable.

                                   ARTICLE II
                                      RENT

     Section 2.01. Rent during the Initial Term. During the Initial Term,
Sublessee shall pay monthly rent (hereinafter, the "Rent") in the following
amounts:

                  Annual Payment              Monthly Payment
                  --------------              ---------------

                  $131,206.32                 $10,933.86

commencing on July 1, 2000 and continuing on the first day of each successive
month to and including June 1, 2001.

     During each of the First Renewal Term, the Second Renewal Term, the Third
Renewal Term, the Fourth Renewal Term and the Fifth Renewal Term, if applicable,
monthly rent shall be adjusted as of the first day of each such term and
continuing throughout the remainder of each such term to an amount equal to the
Base Rent plus all pass-throughs including, but not limited to, real estate
taxes, insurance and common area expense paid by Sublessor on a per square foot
basis to the lessor under the Prime Lease. In other words, there shall be no
mark-up to Sublessee by Sublessor for rent under this Sublease on a per square
foot basis as compared to rent due under the Prime Lease on a per square foot
basis.

     All payments of Rent shall be made in advance on the first day of each
calendar month and at the same rate for fractions of a month if the Term ends on
any day except the fourteenth day of a calendar month.

     Section 2.02. Payment of Rent. All monthly payments of Rent, and all other
charges due from Sublessee to Sublessor hereunder shall be paid to Sublessor at
2901 Butterfield Road, Oak Brook, Illinois 60523, Attn: Alan Kremin.

     Section 2.03. Interest on Late Payment. Any Rent not paid when due shall
bear interest from the date when the same is payable under the terms of this
Sublease until the same shall be paid at an annual rate of interest equal to the
rate of interest announced from time to time by LaSalle Bank National
Association at its prime rate unless a lesser rate shall then be the maximum
rate permissible by law, in which event said lesser rate shall be charged.

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                                   ARTICLE III
                                SECURITY DEPOSIT
                             INTENTIONALLY OMITTED.

                                   ARTICLE IV
                                 USE OF PREMISES

     Section 4.01. Specific Use. The Sublet Premises shall be occupied and used
for general office purposes provided such use is legally permissible and in
accordance with all applicable governmental laws, regulations and requirements
and for purposes incidental thereto, and shall not be used for any other
purpose.

     Section 4.02. Covenants Regarding Use. In connection with use of the Sublet
Premises, Sublessor and Sublessee agree to do the following:

     (a)  Sublessee shall use the Sublet Premises and conduct its business
          thereon in a safe, careful, reputable and lawful manner.

     (b)  Sublessee shall not commit, nor allow to be committed, in, on or about
          the Sublet Premises or the Premises, any act of waste, including any
          act which might deface, damage or destroy the Premises or any part
          thereof; use or permit to be used on the Sublet Premises any hazardous
          substance, equipment or other thing which might cause injury to person
          or property or increase the danger of fire or other casualty in, on or
          about the Sublet Premises; permit any objectionable or offensive noise
          or odors to be emitted from the Sublet Premises; or do anything, or
          permit anything to be done, which would, in Sublessor's reasonable
          opinion, disturb or tend to disturb other individuals occupying or
          using space in the Premises.

     (c)  Sublessee shall not overload the floors of the Sublet Premises beyond
          their designed weight-bearing capacity.

     (d)  Sublessee shall not use the Sublet Premises, nor allow the Sublet
          Premises to be used, for any purpose or in any manner which would, in
          Sublessor's opinion, invalidate any policy of insurance now or
          hereafter carried on the Premises or increase the rate of premiums
          payable on any such insurance policy. Should Sublessee fail to comply
          with this covenant, Sublessor may, at its option, require Sublessee to
          stop engaging in such activity or to reimburse Sublessor as additional
          fees for any increase in premiums charged during the Term of this
          Sublease on the insurance carried by Sublessor on the Premises and
          attributable to the use being made of the Sublet Premises by
          Sublessee.

     (e)  Access to the Sublet Premises is limited to 5:30 a.m. to 10:00 p.m.
          Monday through Friday, Saturday 5:30 a.m. to 5:00 p.m. with no access,
          except in the case of

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          emergencies, on Sundays or recognized holidays. Sublessor shall
          identify two (2) individuals together with such individuals' telephone
          numbers for Sublessee to contact in the case of emergencies for
          purposes of clearing the alarm to grant Sublessee access to the Sublet
          Premises.

     (f)  The Sublessor receptionist will greet Sublessee's visitors in the
          lobby area of the Premises and announce their arrival to Sublessee.

     (g)  Sublessor will be responsible for heating, air conditioning (no
          special accommodations), electricity, coffee service, basic cleaning
          (vacuuming, dusting and emptying of waste baskets) on a daily basis.

     Section 4.03. Compliance with Laws. Sublessee shall comply with all laws,
statutes, ordinances, rules, regulations and orders of any federal, state,
municipal or other government or agency thereof having jurisdiction over and
relating solely to the use of the Sublet Premises and is responsible to obtain
all licenses and permits necessary and required by any law statute, ordinance,
rule, regulation or order of any federal, state, municipal or other government
or agency having jurisdiction over and relating to the Sublet Premises.

                                    ARTICLE V
                                    INSURANCE

     Section 5.01. Kinds and Amounts. Sublessee shall procure and maintain the
following insurance or policies of insurance at its own cost and expense:

     (a)  Comprehensive general liability insurance including contractual
          liability under Sublessee's indemnification obligation contained in
          this Sublease covering injury to or death of persons and damage to
          property in an amount of not less than $2,000,000.00 combined single
          limit per occurrence and with deductibles not to exceed $10,000 with
          respect to any one incident;

     (b)  Insurance covering all contents and Sublessee's trade fixtures,
          machinery, equipment, furniture and furnishings in the Sublet Premises
          to the extent of at least ninety (90%) per cent of their replacement
          cost under broad form standard fire and extended coverage insurance,
          including, without limitation, vandalism and malicious mischief and
          sprinkler leakage endorsements; and

     Section 5.02. Form of Insurance. The insurance described in Section 5.01
above shall be in companies and in form and substance satisfactory from time to
time to Sublessor. Insurance policies described in Section 5.01(a) shall name
Sublessor, Inland Real Estate Equities, Inc., Inland Mortgage Investment
Corporation and Sublessee as insured parties and shall contain waivers of
subrogation against Sublessor, and expressly permit waiver of claims prior to a
loss as provided in Section 5.03 hereof. The aforesaid insurance shall not be
subject to cancellation except after, at least, thirty (30) days' prior written
notice to Sublessor. The original insurance policies (or certificates thereof
satisfactory to Sublessor), together with satisfactory evidence of payment of
the premiums thereon,

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shall be deposited with Sublessor at the Commencement Date and renewals thereof
not less than thirty (30) days prior to the end of the term of each such
coverage.

     Section 5.03. Mutual Waiver of Claims and Subrogation Rights.
Notwithstanding any other provisions of this Sublease to the contrary, whenever
(a) any loss, cost, damage or expense resulting from fire, explosion or any
other casualty or occurrence is incurred by either of the parties to this
Sublease, or anyone claiming by, through, or under it in connection with the
Sublet Premises, and (b) such party is then covered in whole or in part by
insurance with respect to such loss, costs, damage or expense or is required
under this Sublease to be so insured, then the party so insured (or so required)
hereby waives any claims against and releases the other party from any liability
said other party may have on account of such loss, costs, damage or expense to
the extent of any amount recovered by reason of such insurance; provided that
such waiver of claims or release of liability shall not be operative in any case
where the effect thereof is to invalidate such insurance coverage or increase
the cost thereof (except that in the case of increased cost, the other party
shall have the right, within thirty (30) days following written notice, to pay
such increased cost, thereby keeping such release or waiver in full force and
effect).

                                   ARTICLE VI
                            ASSIGNMENT AND SUBLETTING

     Section 6.01. Consent Required. Sublessee shall not, without Sublessor's
prior written consent which consent may be in Sublessor's sole unfettered
discretion, assign, convey, mortgage or sublet this Sublease or any interest
under it, nor permit the use or occupancy of the Sublet Premises or any part
thereof by anyone other than Sublessee or affiliates or subsidiaries of
Sublessee. Any such assignment, conveyance, mortgage, sublease, use or occupancy
without Sublessor's consent shall be voidable and, at Sublessor's election,
shall constitute a default of this Sublease. Sublessor shall be paid all rent
from any subletting. No interest of Sublessee in this Sublease shall be
assignable by operation of law. An involuntary assignment shall constitute a
default by Sublessee and Sublessor shall have the right to elect to terminate
this Sublease, in which case this Sublease shall not be treated as an asset of
Sublessee.

     Section 6.02. Involuntary Assignment.

     (a)  No interest of Sublessee in this Sublease shall be assignable by
          operation of law including, without limitation, the transfer of this
          Sublease by testacy or intestacy. Each of the following acts shall be
          considered an involuntary assignment:

          (1)  If Sublessee is or becomes bankrupt or insolvent, makes an
               assignment for the benefit of creditors, or institutes a
               proceeding under the Bankruptcy Act in which Sublessee is the
               bankrupt; or, if Sublessee is a partnership or consists of more
               than one person or entity, if any partner of the partnership or
               other person or entity is or becomes bankrupt or insolvent, or
               makes an assignment for the benefit of creditors;

          (2)  If a writ of attachment or execution is levied on this Sublease;

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          (3)  If, in any proceeding or action to which Sublessee is a party, a
               receiver is appointed with authority to take possession of the
               Sublet Premises.

     (b)  An involuntary assignment shall constitute a default by Sublessee and
          Sublessor shall have the right to elect to terminate this Sublease, in
          which case this Sublease shall not be treated as an asset of
          Sublessee. If a writ of attachment or execution is levied on this
          Sublease, Sublessee shall have ten (10) days in which to cause the
          attachment or execution to be removed. If any involuntary proceeding
          in bankruptcy is brought against Sublessee, or if a receiver is
          appointed, Sublessee shall have sixty (60) days in which to have the
          involuntary proceeding dismissed or the receiver removed.

                                   ARTICLE VII
                                    SURRENDER

     Upon the termination of this Sublease, whether by forfeiture, lapse of
time, pursuant to notice, or otherwise, or upon the termination of Sublessee's
right to possession of the Sublet Premises, Sublessee will at once surrender and
deliver up the Sublet Premises, together with all alterations, additions,
improvements, hardware and fixtures thereon, other than Sublessee's personal
property, to Sublessor in good condition and repair, except for reasonable wear
and tear occurring after the last necessary maintenance by Sublessee. If
Sublessee fails to surrender the Sublet Premises to Sublessor on expiration or
termination of this Sublease as required by this Sublease, Sublessee shall hold
Sublessor harmless from all damages resulting from Sublessee's failure to
surrender the Sublet Premises, including, without limitation, claims made by a
succeeding Sublessee resulting from Sublessee's failure to surrender the Sublet
Premises.

                                  ARTICLE VIII
                             DESTRUCTION OF PREMISES

     In the event of damage to, or destruction of, the Premises or any part
thereof not caused by Sublessee, which damage or destruction renders the Sublet
Premises untenable, then, at the option of either party upon five (5) days'
written notice, this Sublease may be terminated effective the fifth (5th) day
after such notice as either parties' sole remedy.

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                                   ARTICLE IX
                              DEFAULTS AND REMEDIES

     Section 9.01. Defaults by Sublessee. The occurrence of any one or more of
the following events shall be a default and breach of this Sublease by
Sublessee: (a) Sublessee shall fail to pay any installment of Rent or any other
sum due hereunder, within five (5) days after written notice that Sublessor has
failed to receive same; (b) Sublessee shall fail to perform or observe any other
term, condition, covenant or obligation required to be performed or observed by
it under this Sublease and does not correct such failure within ten (10) days
after written notice thereof from Sublessor; provided, however, that if the
term, condition, covenant or obligation to be performed by Sublessee is of such
nature that the same cannot reasonably be corrected within such ten-day period,
such default shall be deemed to have been cured if Sublessee commences such
performance within said ten- day period and thereafter diligently undertakes to
complete the same provided in no event shall Sublessee be allowed more than
thirty (30) days to complete such cure; (c) Sublessee shall vacate, abandon, or
fail to occupy for a period of thirty (30) days the Sublet Premises or any
substantial portion thereof; (d) A trustee or receiver shall be appointed to
take possession of substantially all of Sublessee's assets in, on or about the
Sublet Premises or of Sublessee's interest in this Sublease; (e) Sublessee makes
an assignment for the benefit of creditors, or substantially all of Sublessee's
assets in, on or about the Sublet Premises or Sublessee's interest in this
Sublease are attached or levied upon under execution; (f) A petition in
bankruptcy, insolvency, or for reorganization or arrangement is filed by or
against Sublessee pursuant to any federal or state statute; (g) The Sublet
Premises are levied upon by any revenue officer or similar officer; (h) A decree
or order appointing a receiver of the property of Sublessee shall be made and
such decree or order shall not have been vacated, stayed or set aside within
sixty (60) days from the date of entry or granting thereof; or (i) If Sublessee
shall fail to contest the validity of any lien or claimed lien and give security
to Sublessor to insure payment thereof, or having commenced to contest the same
and having given such security, shall fail to prosecute such contest with
diligence, or shall fail to have the same released and satisfy any judgment
rendered thereon, and such default continues for twenty-five (25) days after
notice thereof in writing to Sublessee.

     Section 9.02. Remedies of Sublessor. Upon the occurrence of any event of
default set forth above, Sublessor shall have the following rights and remedies,
in addition to those allowed by law, any one or more of which may be exercised
without further notice to or demand upon Sublessee:

    (i)   Sublessor may reenter the Sublet Premises and cure any default of
          Sublessee, in which event Sublessee shall reimburse Sublessor as
          additional fees for any costs and expenses which Sublessor may incur
          to cure such default; and Sublessor shall not be liable to Sublessee
          for any loss or damage which Sublessee may sustain by reason of
          Sublessor's action, unless such loss or damage was caused by
          Sublessor's gross negligence.

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    (ii)  Sublessor may sue for injunctive relief or to recover damages for any
          loss resulting from the breach and may accelerate all Rent without any
          abatement or setoff.

    (iii) Sublessor may terminate this Sublease as of the date of such default,
          in which event:

          (a)  Sublessor may reenter the Sublet Premises with or without process
               of law using such force as may be necessary, and remove all
               persons, fixtures and chattels therefrom and Sublessor shall not
               be liable for any damages resulting therefrom. Upon the happening
               of any one (1) or more events of default, Sublessor may repossess
               the Sublet Premises by forcible entry or detainer suit, or
               otherwise, without demand or notice of any kind to Sublessee
               (except as hereinabove expressly provided for) and without
               terminating this Sublease and (without any obligation to do so)
               may relicense all or any part of the Sublet Premises for such
               fees and upon such terms as shall be satisfactory to Sublessor
               (including the right to relicense the Sublet Premises for a term
               greater or lesser than that under the Sublease term, and the
               right to relicense the Sublet Premises as a part of a larger
               area, and the right to change the character or use made of the
               Sublet Premises). For the purpose of such relicensing, Sublessor
               may decorate or make any repairs, changes, alterations or
               additions in or to the Sublet Premises that may be necessary or
               convenient. In the event of any termination of this Sublease or
               repossession of any of the Sublet Premises by reason of the
               occurrence of an event of default, Sublessee shall pay all sums
               required to be paid by Sublessee to and including the date of
               such termination of repossession. Sublessee hereby agrees to be
               and remain liable for all sums aforesaid; and Sublessor may
               recover such damages from Sublessee and institute and maintain
               successive actions or legal proceedings against Sublessee for the
               recovery of such damages. Nothing herein contained shall be
               deemed to require Sublessor to wait to begin such action or other
               legal proceedings until the date when the Term would have expired
               by limitation had there been no such event of default.

          (b)  The obligation of Sublessee to pay all sums required to be paid
               by Sublessee hereunder during the term hereof shall not be deemed
               to be waived, released or terminated by reason of the service
               upon Sublessee of any statutory or other notice to collect,
               notice that the tenancy hereby created will be terminated on the
               date therein set forth, demand for possession, the institution of
               any action of forcible detainer or ejectment, or the entry of any
               judgment for possession that may be rendered in any such action.
               In the event of any event of default hereunder, Sublessor may
               immediately or at any time thereafter, without notice, cure such
               breach for the account and at the expense of Sublessee. If
               Sublessor at any time by reason of such breach, is compelled to
               pay, or elects to pay, any sum of money or do any act which will
               require the payment of any sum of money, or incurs any expense,
               including reasonable attorney's fees, in instituting or
               prosecuting any action or proceedings to enforce Sublessor's
               rights hereunder, the sum or sums so paid by Sublessor,

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                    with interest thereon at the rate of interest announced from
                    time to time by the LaSalle Bank National Association as its
                    prime rate, shall be deemed to be additional fee hereunder
                    and shall be due from Sublessee to Sublessor on the first
                    day of the month following the payment of such respective
                    sums or expenses. For purposes of this Subsection, any
                    expense incurred by Sublessor for obtaining any insurance
                    that Sublessee is required to obtain under this Sublease
                    shall be deemed to be that amount that is the cost of such
                    insurance actually incurred by Sublessor. No receipt of
                    money by Sublessor from Sublessee after the termination of
                    this Sublease or after the service of any notice or after
                    the commencement of any suit, or after final judgment for
                    possession of the Sublet Premises, shall renew, reinstate,
                    continue or extend the terms of this Sublease or affect any
                    such notice, demand or suit.

          Section 9.03.  Remedies Cumulative.

          (a)  No remedy herein or otherwise conferred upon or reserved to
               Sublessor shall be considered to exclude or suspend any other
               remedy but the same shall be cumulative and shall be in addition
               to every other remedy given hereunder now or hereafter existing
               at law or in equity or by statute, and every power and remedy
               given by this Sublease to Sublessor may be exercised from time to
               time and as often as occasion may rise or as may be deemed
               expedient. No delay or omission of Sublessor to exercise any
               right or power arising from any default, shall impair any such
               right or power or shall be construed to be a waiver of any such
               default or any acquiescence therein. Neither the rights herein
               given to receive, collect, sue for Rent, moneys or payments, or
               to enforce the terms, provisions and conditions of this Sublease,
               or to prevent the breach or nonobservance thereof, or the
               exercise of any such right or of any other right or remedy
               hereunder or otherwise granted or arising, shall in any way
               affect or impair or toll the right or power of Sublessor to
               declare the Term hereby granted ended, and to terminate this
               Sublease as provided for in this Sublease, or to repossess
               without terminating the Sublease, because of any default in or
               breach of the covenants, provisions or conditions of this
               Sublease.

          (b)  Sublessee hereby waives and surrenders, for itself and all those
               claiming under it, including creditors of all kinds, (i) any
               right and privilege which it or any of them may have under any
               present or future law to redeem any of the Sublet Premises or to
               have a continuance of this Sublease after termination of this
               Sublease or the Sublessee's right of occupancy or possession
               pursuant to any court order or any provision hereof, and (ii) the
               benefits of any present or future law which exempts property from
               liability for debt or distress for fee.

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     Section 9.04. Non-Waiver of Defaults. No waiver of any breach of any of the
covenants of this Sublease shall be construed, taken or held to be a waiver of
any other breach or waiver, acquiescence in or consent to any further or
succeeding breach of the same covenant. No waiver of any default or breach of
this Sublease shall be held to be a waiver of any other default or breach. No
act or omission by Sublessor or its employees or agents during the Term of this
Sublease shall be deemed an acceptance of a surrender of the Sublet Premises,
and no agreement to accept such a surrender shall be valid unless in writing and
signed by Sublessor.

     Section 9.05. Attorney's Fees. In the event either Sublessee or Sublessor
defaults in the performance or observance of any of the terms, conditions,
covenants or obligations contained in this Sublease, and as a result incurs
attorney's fees in enforcing such provisions, then Sublessee and Sublessor each
agree to reimburse the other for the reasonable attorney's fees incurred by the
other, whether or not suit is actually filed.

                                    ARTICLE X
                      MAINTENANCE, REPAIRS AND ALTERATIONS

     Section 10.01. Maintenance and Repairs.

     (a)  Except as hereinafter provided, Sublessor at its sole cost shall keep
          and maintain the entire exterior and interior of the Premises
          including the roof, plumbing fixtures, heating, ventilating,
          air-conditioning equipment, driveways and parking areas in good
          condition and repair, including any necessary replacements, and in
          full compliance with all zoning, building, health and police
          regulations in force; provided that Sublessor shall not be required to
          make any repairs which become necessary by reason of the acts,
          omissions or negligence of Sublessee, its agents, contractors,
          servants, employees, sublessees, concessionaires or licensees.
          Sublessee shall not have any responsibility to maintain the Premises;
          provided, however, Sublessee shall maintain and repair the interior of
          the Sublet Premises.

     (b)  Sublessor will provide cleaning services for the Sublet Premises as
          described in paragraph 4.02(g) in a manner consistent with the
          cleaning services provided for the balance of the Premises.

     (c)  Sublessor shall have the right to enter the Sublet Premises for the
          purpose of inspection and for making any repairs to the Sublet
          Premises.

     (d)  Sublessee shall repair at its sole cost and expense all damage to the
          Sublet Premises caused by the installation or removal of personal
          property of Sublessee.

                                       11

<PAGE>   12

     Section 10.02. Alterations. Sublessee shall not make any alterations or
improvements to or do any act which would tend to impair the value of the Sublet
Premises or the Premises, without the express prior written consent of the
Sublessor. All alterations shall be performed lien free by Sublessee in a good
and workmanlike manner and shall be expeditiously completed in compliance with
all legal requirements at Sublessee's sole cost and expense.

                                   ARTICLE XI
                          SUBORDINATION OR SUPERIORITY

     The rights and interest of Sublessee under this Sublease shall be subject
and subordinate to any mortgage or trust deed now existing or that hereafter may
be placed upon the Sublet Premises, Sublessee specifically agreeing that
mortgages and deeds of trust may be subsequently executed and delivered by
Sublessor, and to any and all advances to be made thereunder, and to the
interest thereon, and all renewals, replacements and extensions thereof, if the
mortgagee or trustee named in said mortgages or trust deeds shall elect to
subject and subordinate the rights and interest of Sublessee under this Sublease
to the lien of its mortgage or deed of trust and shall agree to recognize this
Sublease of Sublessee in the event of foreclosure if Sublessee is not in
default. Any mortgagee or trustee may elect to give the rights and interest of
Sublessee under this Sublease priority over the lien of its mortgage or deed of
trust. In the event of either such election and upon notification by such
mortgagee or trustee to Sublessee to that effect, the rights and interest of
Sublessee under this Sublease shall be deemed to be subordinate to, or to have
priority over, as the case may be, the lien of said mortgage or trust deed,
whether this Sublease is dated prior to or subsequent to the date of said
mortgage or trust deed. Sublessee shall execute and deliver whatever instruments
may be required by Sublessor, or any mortgagee or beneficiary of any trust deed
encumbering or to encumber the Sublet Premises, for such purposes, and in the
event Sublessee fails so to do within ten (10) days after demand in writing,
Sublessee does hereby make, constitute and irrevocably appoint Sublessor as its
attorney in fact and in its name, place and stead so to do.

                                   ARTICLE XII
                              ESTOPPEL CERTIFICATES

     Sublessee shall at any time and from time to time upon not less than ten
(10) days prior written request from Sublessor execute, acknowledge and deliver
to Sublessor, in form reasonably satisfactory to Sublessor and Sublessor's
mortgagee, or beneficiary under any trust deed a written statement certifying
that Sublessee has accepted the Sublet Premises, that this Sublease is
unmodified and in full force and effect, or if there have been modifications,
that the same is in full force and effect as modified and stating the
modifications; that the Sublessor is not in default hereunder; the date to which
the fees and other charges have been paid in advance; if any; or such other
accurate certification as may reasonably be required by Sublessor or Sublessor's
mortgagee, or beneficiary under any trust deed, and agreeing to give copies to
such mortgagee or beneficiary of all notices by Sublessee to Sublessor. Any such
statement delivered pursuant to this Subsection may be relied upon by any
prospective purchaser of the Sublet Premises, mortgagee or the beneficiary under
any trust deed on the Sublet Premises and their respective successors and
assigns.

                                       12

<PAGE>   13

                                  ARTICLE XIII
                                  MISCELLANEOUS

     Section 13.01. Amendments Must be in Writing. All understandings between
Sublessor and Sublessee are incorporated herein. None of the covenants, terms or
conditions of this Sublease shall be amended except by a written instrument,
duly signed, acknowledged and delivered by the parties.

     Section 13.02. Notices. All notices to or demands upon Sublessor or
Sublessee desired or required to be given under any of the provisions hereof,
shall be in writing. Any notices or demands from Sublessor to Sublessee shall be
deemed to have been duly and sufficiently given if the same has been served
personally or has been sent by overnight delivery service addressed to Sublessee
at the Sublet Premises, or at such address as Sublessee may theretofore have
furnished by written notice to Sublessor, and any notice or demands from
Sublessee to Sublessor shall be deemed to have been duly and sufficiently given
if the same has been served personally or sent by overnight delivery service
addressed to Sublessor as follows: In care of Robert H. Baum, Esq. at The Inland
Real Estate Group, Inc., 2901 Butterfield Road, Oak Brook, IL 60523, or at such
other address as Sublessor may theretofore have furnished by written notice to
Sublessee. The effective date of notice by overnight delivery service shall be
the date following the date of deposit of the same with such overnight delivery
service.

     Section 13.03. Covenants Binding on Successors. All of the covenants,
agreements, conditions and undertakings contained in this Sublease shall extend,
inure to, and be binding upon the successors and assigns of the respective
parties hereto, the same as if they were in every case specifically named, and
wherever in this Sublease reference is made to either of the parties hereto, it
shall be held to include and apply to, wherever applicable, the successors and
assigns of such party.

     Section 13.04. Time of Essence. Time is of the essence of this Sublease,
and all provisions herein relating thereto shall be strictly construed.

     Section 13.05. Captions. The captions of this Sublease are for convenience
only and are not to be construed as part of this Sublease and shall not be
construed as defining, limiting, or construing in any way the scope or intent of
the provisions hereof.

     Section 13.06. Severability. If any term or provision of this Sublease
shall to any extent be held invalid or unenforceable, the remaining terms and
provisions of this Sublease shall not be affected thereby, but each term and
provision of this Sublease shall be valid and be enforced to the fullest extent
permitted by law.

     Section 13.07. Prevailing Party. Either party hereto shall be entitled to
reimbursement from the other for all reasonable expenses (including attorneys'
fees and all other expenses incurred in investigating, preparing, filing or
defending any action, demand, or legal proceeding) incident to an action, demand
or legal proceeding between Sublessor and Sublessee where it is determined by a
final and non-appealable judgment of a court of competent jurisdiction that the
party seeking reimbursement has prevailed or that such party is entitled to
reimbursement.

                                       13

<PAGE>   14

     Section 13.08. Applicable Law. This Sublease shall be construed and
enforced in accordance with the laws of the State of Illinois.

     IN WITNESS WHEREOF, INLAND REAL ESTATE INVESTMENT CORPORATION and INLAND
REAL ESTATE CORPORATION have each caused this Sublease to be executed all as of
the day and year first above written.

                         INLAND REAL ESTATE INVESTMENT CORPORATION

                         By: /s/ Brenda Gail Gujral
                            ---------------------------------------
                         Its: President
                             --------------------------------------

                         INLAND REAL ESTATE CORPORATION

                         By: /s/ Norbert Treonis
                            ---------------------------------------
                         Its: President and Chief Executive Officer
                             --------------------------------------

                                       14<PAGE>   1

                                                                     EXHIBIT 4.1

================================================================================

                              INFOCURE CORPORATION

                                       AND

                        [__________________], AS TRUSTEE

                             -----------------------

                                    INDENTURE

                             DATED AS OF _____, 2000

                             -----------------------

                          PROVIDING FOR THE ISSUANCE OF
                            CONVERTIBLE SUBORDINATED
                            DEBT SECURITIES IN SERIES

================================================================================

<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                          PAGE
                                                                                                          ----
<S>                                                                                                       <C>
     RECITALS OF THE COMPANY................................................................................1

                                                 ARTICLE ONE
                           DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

     SECTION 101. Definitions...............................................................................1
     SECTION 102. Compliance Certificates and Opinions......................................................8
     SECTION 103. Form of Documents Delivered to Trustee....................................................9
     SECTION 104. Acts of Holders...........................................................................9
     SECTION 105. Notices, Etc., to Trustee and Company....................................................10
     SECTION 106. Notice of Holders; Waiver................................................................10
     SECTION 107. Conflict With Trust Indenture Act........................................................11
     SECTION 108. Effect of Headings and Table of Contents.................................................11
     SECTION 109. Successors and Assigns...................................................................11
     SECTION 110. Separability Clause......................................................................11
     SECTION 111. Benefits of Indenture....................................................................11
     SECTION 112. Governing Law............................................................................11
     SECTION 113. Legal Holidays...........................................................................11

                                                 ARTICLE TWO
                                                SECURITY FORMS

     SECTION 201. Forms Generally..........................................................................12
     SECTION 202. Form of Face of Security.................................................................12
     SECTION 203. Form of Reverse of Security..............................................................14
     SECTION 204. Form of Trustee's Certificate of Authentication..........................................19
     SECTION 205. Issuance of Book-Entry Securities........................................................20

                                                ARTICLE THREE
                                                THE SECURITIES

     SECTION 301. Amount Unlimited; Issuable in Series.....................................................20
     SECTION 302. Denominations............................................................................22
     SECTION 303. Execution, Authentication, Delivery and Dating...........................................23
     SECTION 304. Temporary Securities.....................................................................24
     SECTION 305. Registration, Registration of Transfer and Exchange......................................24
     SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities.........................................27
     SECTION 307. Payment of Interest; Interest Rights Preserved...........................................27
     SECTION 308. Persons Deemed Owners....................................................................29
     SECTION 309. Cancellation.............................................................................29
</TABLE>

                                      -i-
<PAGE>   3

<TABLE>
<S>                                                                                                      <C>
     SECTION 310. Computation of Interest..................................................................29
     SECTION 311. Regarding Beneficial Ownership Interests in Book-Entry Securities........................29

                                                 ARTICLE FOUR
                                          SATISFACTION AND DISCHARGE

     SECTION 401. Satisfaction and Discharge of Indenture..................................................29
     SECTION 402. Application of Trust Money...............................................................31

                                                 ARTICLE FIVE
                                                   REMEDIES

     SECTION 501. Events of Default........................................................................31
     SECTION 502. Acceleration of Maturity; Rescission and Annulment.......................................32
     SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee..........................33
     SECTION 504. Trustee May File Proofs of Claim.........................................................34
     SECTION 505. Trustee May Enforce Claims Without Possession of Securities..............................34
     SECTION 506. Application of Money Collected...........................................................35
     SECTION 507. Limitation on Suits......................................................................35
     SECTION 508. Unconditional Right of Holders to Receive Principal, Premium and Interest................36
     SECTION 509. Restoration of Rights and Remedies.......................................................36
     SECTION 510. Rights and Remedies......................................................................36
     SECTION 511. Delay or Omission Not Waiver.............................................................36
     SECTION 512. Control by Holders.......................................................................36
     SECTION 513. Waiver of Past Defaults..................................................................37
     SECTION 514. Undertaking for Costs....................................................................37
     SECTION 515. Waiver of Stay or Extension Laws.........................................................37

                                                 ARTICLE SIX
                                                 THE TRUSTEE

     SECTION 601. Certain Duties and Responsibilities......................................................38
     SECTION 602. Notice of Defaults.......................................................................39
     SECTION 603. Certain Rights of Trustee................................................................39
     SECTION 604. Not Responsible for Recitals or Issuance of Securities...................................40
     SECTION 605. May Hold Securities......................................................................40
     SECTION 606. Money Held in Trust......................................................................41
     SECTION 607. Compensation and Reimbursement...........................................................41
     SECTION 608. Disqualification; Conflicting Interests..................................................41
     SECTION 609. Corporate Trustee Required; Eligibility..................................................41
     SECTION 610. Resignation and Removal; Appointment of Successor........................................42
     SECTION 611. Acceptance of Appointment by Successor...................................................43
     SECTION 612. Merger, Conversion, Consolidation or Succession to Business..............................44
     SECTION 613. Preferential Collection of Claims Against Company........................................44
     SECTION 614. Appointment of Authenticating Agent......................................................44
</TABLE>

                                      -ii-
<PAGE>   4

<TABLE>
<S>                                                                                                      <C>
                                                ARTICLE SEVEN
                             LISTS OF HOLDERS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. Company to Furnish Trustee Names and Addresses of Holders................................47
     SECTION 702. Preservation of Information; Communications to Holders...................................47
     SECTION 703. Reports by Trustee.......................................................................48
     SECTION 704. Reports by Company.......................................................................48

                                                ARTICLE EIGHT
                             CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

     SECTION 801. Company May Consolidate, Etc., Only on Certain Terms.....................................48
     SECTION 802. Successor Corporation Substituted........................................................49
     SECTION 803. Assumption by Subsidiary of Company's Obligations........................................49

                                                 ARTICLE NINE
                                           SUPPLEMENTAL INDENTURES

     SECTION 901. Supplemental Indentures Without Consent of Holders.......................................50
     SECTION 902. Supplemental Indentures With Consent of Holders..........................................52
     SECTION 903. Execution of Supplemental Indentures.....................................................53
     SECTION 904. Effect of Supplemental Indentures........................................................53
     SECTION 905. Conformity With Trust Indenture Act......................................................53
     SECTION 906. Reference in Securities to Supplemental Indentures.......................................53

                                                 ARTICLE TEN
                                                  COVENANTS

     SECTION 1001. Payment of Principal, Premium and Interest..............................................53
     SECTION 1002. Maintenance of Office or Agency.........................................................54
     SECTION 1003. Money for Securities Payments to be Held in Trust.......................................54
     SECTION 1004. Corporate Existence.....................................................................55
     SECTION 1005. Statement as to Compliance..............................................................56
     SECTION 1006. Waiver of Certain Covenants.............................................................56

                                                ARTICLE ELEVEN
                                           REDEMPTION OF SECURITIES

     SECTION 1101. Applicability of Article................................................................56
     SECTION 1102. Election to Redeem; Notice to Trustee...................................................56
     SECTION 1103. Selection by Trustee of Securities to be Redeemed.......................................57
     SECTION 1104. Notice of Redemption....................................................................57
     SECTION 1105. Deposit of Redemption Price.............................................................58
     SECTION 1106. Securities Payable on Redemption Date...................................................58
     SECTION 1107. Securities Redeemed in Part.............................................................59
</TABLE>

                                     -iii-
<PAGE>   5

<TABLE>
<S>                                                                                                      <C>
                                                ARTICLE TWELVE
                                                SINKING FUNDS

     SECTION 1201. Applicability of Article................................................................59
     SECTION 1202. Satisfaction of Sinking Fund Payments With Securities...................................59
     SECTION 1203. Redemption of Securities for Sinking Fund...............................................59

                                               ARTICLE THIRTEEN
                                      DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1301. Applicability of Article; Company's Option to Effect Defeasance or Covenant
                           Defeasance......................................................................60
     SECTION 1302. Defeasance and Discharge................................................................60
     SECTION 1303. Covenant Defeasance.....................................................................61
     SECTION 1304. Conditions to Defeasance or Covenant Defeasance.........................................61
     SECTION 1305. Deposited Money and U.S. Government Obligations to be Held in Trust; Other
                           Miscellaneous Provisions........................................................63
     SECTION 1306. Reinstatement...........................................................................63

                                               ARTICLE FOURTEEN
                                 REPAYMENT OF SECURITIES AT OPTION OF HOLDERS

     SECTION 1401. Applicability of Article................................................................64
     SECTION 1402. Notice of Repayment Date................................................................64
     SECTION 1403. Deposit of Repayment Price..............................................................64
     SECTION 1404. Securities Payable on Repayment Date....................................................65
     SECTION 1405. Securities Repaid in Part...............................................................65

                                               ARTICLE FIFTEEN
                                           CONVERSION OF SECURITIES

     SECTION 1501. Conversion Privilege and Conversion Rate................................................65
     SECTION 1502. Exercise of Conversion Privilege........................................................66
     SECTION 1503. Fractions of Shares of Common Stock.....................................................67
     SECTION 1504. Adjustment of Conversion Rate...........................................................67
     SECTION 1505. Notice of Adjustments of Conversion Rate................................................72
     SECTION 1506. Notice of Certain Corporate Action......................................................72
     SECTION 1507. Company to Reserve Common Stock.........................................................73
     SECTION 1508. Taxes on Conversions....................................................................73
     SECTION 1509. Covenant as to Common Stock.............................................................74
     SECTION 1510. Cancellation of Converted Securities....................................................74
     SECTION 1511. Provision in Case of Consolidation, Merger or Conveyance of Assets......................74
     SECTION 1512. Responsibility of Trustee for Conversion Provisions.....................................75
</TABLE>

                                      -iv-
<PAGE>   6

<TABLE>
<S>                                                                                                      <C>
                                               ARTICLE SIXTEEN
                                                SUBORDINATION

     SECTION 1601. Securities Subordinate to Senior Indebtedness...........................................75
     SECTION 1602. Payment Over of Proceeds Upon Dissolution, Etc..........................................75
     SECTION 1603. No Payment When Senior Debt in Default..................................................76
     SECTION 1604. Payment Permitted If No Default.........................................................77
     SECTION 1605. Subrogation to Rights of Holders of Senior Debt.........................................77
     SECTION 1606. Provisions Solely to Define Relative Rights.............................................78
     SECTION 1607. Trustee to Effectuate Subordination.....................................................78
     SECTION 1608. No Waiver of Subordination Provisions...................................................78
     SECTION 1609. Notice to Trustee.......................................................................79
     SECTION 1610. Reliance on Judicial Order or Certificate of Liquidating Agent..........................79
     SECTION 1611. Trustee Not Fiduciary for Holders of Senior Debt........................................80
     SECTION 1612. Rights of Trustee as Holder of Senior Debt; Preservation of Trustee's Rights............80
     SECTION 1613. Article Applicable to Paying Agents.....................................................80
     SECTION 1614. Payment.................................................................................80

                                              ARTICLE SEVENTEEN
                                              HOLDERS' MEETINGS

     SECTION 1701. Purposes for Which Meetings May be Called...............................................81
     SECTION 1702. Manner of Calling Meetings..............................................................81
     SECTION 1703. Call of Meetings by Company or Holders..................................................81
     SECTION 1704. Who May Attend and Vote at Meetings.....................................................82
     SECTION 1705. Regulations May be Made by Trustee......................................................82
     SECTION 1706. Evidence of Actions by Holders..........................................................82
     SECTION 1707. Exercise of Rights of Trustee and Holders Not to be Hindered or Delayed.................82
</TABLE>

                                      -v-
<PAGE>   7

         INDENTURE, dated as of _____________ 2000, between INFOCURE
CORPORATION, a corporation duly organized and existing under the laws of the
State of Delaware (herein called the "Company"), having its principal office at
1765 The Exchange, Suite 500, Atlanta, Georgia 30339, and [________________], a
national banking association duly organized and existing under the laws of the
United States of America, as Trustee (herein called the "Trustee").

                             RECITALS OF THE COMPANY

         The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its convertible
subordinated debt securities (herein called the "Securities"), to be issued in
one or more series as in this Indenture provided.

         All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

         NOW, THEREFORE, THIS INDENTURE WITNESSETH:

         For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities or of series
thereof, as follows:

                                  ARTICLE ONE
             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 101. Definitions.

         For all purpose of this Indenture, except as otherwise expressly
provided or unless the context otherwise requires:

                  (1) the terms defined in this Article have the meanings
         assigned to them in this Article and include the plural as well as the
         singular;

                  (2) all other terms used herein which are defined in the Trust
         Indenture Act, either directly or by reference therein, have the
         meanings assigned to them therein;

                  (3) all accounting terms not otherwise defined herein have the
         meanings assigned to them in accordance with generally accepted
         accounting principles and, except as otherwise herein expressly
         provided, the term "generally accepted accounting principles" with
         respect to any computation required or permitted hereunder shall mean
         such accounting principles as are generally accepted at the date of
         such computation; and

                  (4) the words "herein," "hereof," and "hereunder" and other
         words of similar import refer to this Indenture as a whole and not to
         any particular Article, Section or other subdivision.

         "Act," when used with respect to any Holder, has the meaning specified
in Section 104.

                                     - 1 -
<PAGE>   8

         "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "Authenticating Agent" means any Person authorized by the Trustee to
act on behalf of the Trustee to authenticate Securities.

         "Board of Directors" means either the board of directors of the
Company, any duly authorized committee of that board or any officer of the
Company duly authorized by the board of directors of the Company or a duly
authorized committee of that board to take a specified action or make a
specified determination (the authorization of such officer being evidenced by a
copy of a resolution certified by the Secretary or an Assistant Secretary of the
Company to have been duly adopted by the board of directors of the Company or a
duly authorized committee of that board and to be in full force and effect on
the date of such certification and delivered to the Trustee).

         "Board Resolution" means a copy of a resolution or action certified by
the Secretary or an Assistant Secretary of the Company to have been duly adopted
or taken by the Board of Directors and to be in full force and effect on the
date of such certification, and delivered to the Trustee.

         "Book-Entry Security" means a Security in the form prescribed in
Section 205 evidencing all or part of a series of Securities, issued to the
Depositary for such series or its nominee, and registered in the name of such
Depositary or its nominee.

         "Business Day," when used with respect to any Place of Payment, means
each Monday, Tuesday, Wednesday, Thursday and Friday which is not a day on which
banking institutions in that Place of Payment are generally authorized or
obligated by law to close.

         "Closing Price Per Share" means, with respect to the Common Stock of
the Company, for any day, the reported last sales price regular way per share on
such day or, in case no such reported sale takes place on such day, the average
of the reported closing bid and asked prices regular way, in either case (i) on
the principal (as determined by the Board of Directors) national securities
exchange on which the Common Stock is listed or admitted to trading or (ii) if
not listed or admitted to trading on any national securities exchange, on the
Nasdaq National Market or (iii) if the Common Stock is not listed or admitted to
trading on any national securities exchange or quoted on the Nasdaq National
Market, the average of the closing bid and asked prices in the over-the-counter
market as furnished by any New York Stock Exchange member firm selected from
time to time by the Company for that purpose.

         "Commission" means the Securities and Exchange Commission, as from time
to time constituted, created under the Securities Exchange Act of 1934, or, if
at any time after the execution of this instrument such commission is not
existing and performing the duties now assigned to it under the Trust Indenture
Act, then the body performing such duties at such time.

                                     - 2 -
<PAGE>   9

         "Common Stock" means the Common Stock, par value $.001 per share, of
the Company authorized at the date of this instrument as originally executed.
Subject to the provisions of Section 1511, shares issuable on conversion or
repurchase of Securities shall include only shares of Common Stock or shares of
any class or classes of common stock resulting from any reclassification or
reclassifications thereof; provided, however, that if at any time there shall be
more than one such resulting class, the shares so issuable on conversion of
Securities shall include shares of all such classes, and the shares of each such
class then so issuable shall be substantially in the proportion which the total
number of shares of such class resulting from all such reclassifications bears
to the total number of shares of all such classes resulting from all such
reclassifications.

         "Company" means the Person named as the "Company" in the first
paragraph of this instrument until a successor Person shall have become such
pursuant to the applicable provisions of this Indenture, and thereafter
"Company" shall mean such successor Person.

         "Company Request" or "Company Order" means a written request or order
signed in the name of the Company by its Chairman of the Board, its President, a
Vice Chairman or a Vice President, and by its Treasurer, an Assistant Treasurer,
its Controller, an Assistant Controller, its Secretary or an Assistant
Secretary, and delivered to the Trustee.

         "Constituent Person" as the meaning specified in Section 1511.

         "Conversion Agent" means any Person authorized by the Company to
convert Securities in accordance with Article Fifteen. The Company has initially
appointed the Trustee as Conversion Agent.

         "Conversion Price," when used with respect to any Security, shall have
the meaning specified in Section 1501, as adjusted in accordance with Section
1504.

         "Conversion Rate," when used with respect to any Security, shall have
the meaning specified in the Board Resolution or supplemental indenture creating
such series pursuant to Section 301 hereof and set forth in such Security, as
adjusted in accordance with Section 1504.

         "Conversion Securities" means the securities delivered upon conversion
of Securities (or any securities successor thereto), together with any
securities successor thereto to those so delivered upon any conversion.

         "Corporate Trust Office" means the office of the Trustee at which at
any particular time its corporate trust business shall be principally
administered, which office at the date of execution of this Indenture is located
at [_________________].

         "corporation" means a corporation, association, joint-stock company or
business trust.

         "Covenant Defeasance" has the meaning specified in Section 1303.

         "Defaulted Interest" has the meaning specified in Section 307.

         "Defeasance" has the meaning specified in Section 1302.

                                     - 3 -
<PAGE>   10

         "Depositary" means, with respect to the Securities of any series
issuable or issued in the form of a Book-Entry Security, the Person designated
as Depositary by the Company pursuant to Section 301 until a successor
Depositary shall have been appointed pursuant to Section 305, and thereafter
"Depositary" shall mean or include each Person who is then a Depositary
hereunder, and if at any time there is more than one such Person, "Depositary"
as used with respect to the Securities of any such series shall mean the
Depositary with respect to the Securities of that series.

         "Event of Default" has the meaning specified in Section 501.

         "Expiration Time" has the meaning specified in Section 1504(h).

         "Government Obligations" has the meaning specified in Section 1304.

         "Holder" means a Person in whose name a Security is registered in the
Security Register.

         "Indebtedness" means obligations (other than nonrecourse obligations)
of, or guaranteed or assumed by, the Company for borrowed money, including
obligations evidenced by bonds, debentures, notes or other similar instruments
and reimbursement and cash collateralization of letters of credit, bankers'
acceptances, interest rate hedge and currency hedge agreements.

         "Indenture" means this instrument as originally executed or as it may
from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof
and shall include the terms of particular series of Securities established as
contemplated by Section 301.

         "interest," when used with respect to an Original Issue Discount
Security which by its terms bears interest only after Maturity, means interest
payable after Maturity.

         "Interest Payment Date," when used with respect to any Security, means
the Stated Maturity of an installment of interest on such Security.

         "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

         "Non-Electing Share" has the meaning specified in Section 1511.

         "Officers' Certificate" means a certificate signed by the Chairman of
the Board, the President, a Vice Chairman or a Vice President, and by the
Treasurer, an Assistant Treasurer, the Controller, an Assistant Controller, the
Secretary or an Assistant Secretary of the Company, or a Subsidiary, as the case
may be, and delivered to the Trustee.

         "Opinion of Counsel" means a written opinion of counsel, who may be an
employee of the Company and who shall be reasonably satisfactory to the Trustee.

                                     - 4 -
<PAGE>   11

         "Original Issue Discount Security" means any Security which provides
for an amount less than the principal amount thereof to be due and payable upon
a declaration of acceleration of the Maturity thereof pursuant to Section 502.

         "Outstanding," when used with respect to Securities, means, as of the
date of determination, all Securities theretofore authenticated and delivered
under this Indenture, except:

                  (i) Securities theretofore cancelled by the Trustee or
         delivered to the Trustee for cancellation;

                  (ii) Securities for whose payment or redemption money or
         Government Obligations in the necessary amount has been theretofore
         deposited with the Trustee or any Paying Agent (other than the Company)
         in trust or set aside and segregated in trust by the Company (if the
         Company shall act as its own Paying Agent) for the Holders of such
         Securities; provided, that if such Securities are to be redeemed,
         notice of such redemption has been duly given pursuant to this
         Indenture or provision therefor satisfactory to the Trustee has been
         made; and

                  (iii) Securities which have been paid pursuant to Section 306
         or in exchange for or in lieu of which other Securities have been
         authenticated and delivered pursuant to this Indenture, other than any
         such Securities in respect of which there shall have been presented to
         the Trustee proof satisfactory to it that such Securities are held by a
         bona fide purchaser in whose hands such Securities are valid
         obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder, (a) the principal
amount of an Original Issue Discount Security that shall be deemed to be
Outstanding shall be the amount of the principal thereof that would be due and
payable as of the date of such determination upon acceleration of the Maturity
thereof pursuant to Section 502, (b) the principal amount of a Security
denominated in one or more foreign currency or currency units shall be the U.S.
dollar equivalent, determined on the date of original issuance of such Security,
of the principal amount (or, in the case of an Original Issue Discount Security,
the U.S. dollar equivalent on the date of original issuance of such Security of
the amount determined as provided in (a) above) of such Security, (c) the
principal amount of a Security as to which payment thereon may be determined
with reference to an index shall be determined in the manner provided as
contemplated by Section 301, and (d) Securities owned by or held for the account
of the Company or any other obligor upon the Securities or any Affiliate of the
Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in relying upon any such request, demand, authorization, direction, notice,
consent or waiver, only Securities which the Trustee knows to be so owned shall
be so disregarded. Securities so owned or so held which have been pledged in
good faith may be regarded as Outstanding if the pledgee establishes to the
satisfaction of the Trustee the pledgee's right so to act with respect to such
Securities and that the pledgee is not the Company or any other obligor upon the
Securities or any Affiliate of the Company or of such other obligor. Upon
request of the Trustee, the Company shall furnish to the Trustee promptly an
Officer's Certificate listing and identifying all Securities, if any, known by
the Company to be owned by or held for the account of the Company or any other
obligor

                                     - 5 -
<PAGE>   12

upon the Securities, or any Affiliate of the Company or of such obligor and the
Trustee shall be entitled to accept such Officer's Certificate as conclusive
evidence of the facts therein set forth and of the fact that all Securities not
listed therein and not otherwise excluded from the provisions hereof are
Outstanding for the purposes of any such determination.

         "Paying Agent" means any Person authorized by the Company to pay the
principal of (and premium, if any) or interest on any Securities on behalf of
the Company.

         "Person" means any individual, corporation, partnership, joint venture,
association, joint-stock company, trust, unincorporated organization or
government or any agency or political subdivision thereof.

         "Place of Payment," when used with respect to the Securities of any
series, means the place or places where the principal of (any premium, if any)
and interest on the Securities of that series are payable as specified as
contemplated by Section 301.

         "Purchased Shares" has the meaning specified in Section 1504(f).

         "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security shall be deemed to evidence the
same debt as the mutilated, destroyed, lost or stolen Security.

         "Proceeding" has the meaning specified in Section 1602.

         "Record Date Period," when used with respect to any Security, means the
period from the close of business on any Regular Record Date next preceding any
Interest Payment Date to the opening of business on such Interest Payment Date.

         "Redemption Date," when used with respect to any Security to be
redeemed, means the date fixed for such redemption by or pursuant to this
Indenture.

         "Redemption Price," when used with respect to any Security to be
redeemed, means the price at which it is to be redeemed pursuant to this
Indenture.

         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301.

         "Responsible Officer," when used with respect to the Trustee, means the
chairman of the trust committee, any vice president, any assistant vice
president, any corporate trust officer or any other officer of the corporate
trust department of the Trustee customarily performing functions similar to
those performed by any of the above designated officers.

         "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and delivered
under this Indenture.

                                     - 6 -
<PAGE>   13

         "Security Register," "Security Registrar" and "Co-Security Registrar"
have the respective meanings specified in Section 305.

         "Senior Debt" means the principal of (and premium, if any) and interest
(including all interest accruing subsequent to the commencement of any
bankruptcy or similar proceeding, whether or not a claim for post-petition
interest is allowable as a claim in any such proceeding) on, and all fees and
other amounts payable in connection with, the following, whether direct or
indirect, absolute or contingent, secured or unsecured, due or to become due,
outstanding on the date of this Indenture or thereafter created, incurred or
assumed: (i) indebtedness of the Company for money borrowed or evidenced by
credit or loan agreement, bonds, debentures, notes or similar instruments, (ii)
all obligations of the Company evidenced by a note or similar instrument or
written agreement given in connection with the acquisition of any businesses,
properties or assets, including securities, (iii) obligations of the Company as
lessee under leases capitalized on the balance sheet of the lessee under
generally accepted accounting principles, (iv) obligations of the Company under
interest rate and currency swaps, caps, floors, collars, hedge agreements,
forward contracts, or similar agreements or arrangements intended to protect the
Company against fluctuations in interest or currency exchange rates or commodity
prices, (v) all reimbursement obligations of the Company with respect to letters
of credit, bankers' acceptances or similar facilities issued for the account of
the Company, (vi) indebtedness of others of the kinds described in the preceding
clauses (i), (ii), (iii), (iv) and (v) that the Company has assumed, guaranteed
or otherwise assured the payment thereof, directly or indirectly, and/or (vii)
deferrals, renewals, extensions and refundings of, or bonds, debentures, notes
or other evidences of indebtedness issued in exchange for, or amendments,
modifications or supplements to, or covenants and other obligations of the
Company in connection with, the indebtedness described in the preceding clauses
(i) through (vi) whether or not there is any notice to or consent of the Holders
of the Securities; except (a) indebtedness and advances among the Company and
its Subsidiaries; and (b) any particular indebtedness, deferral, renewal,
extension or refunding, if it is expressly stated in the governing terms or in
the assumption thereof that the indebtedness involved is not Senior Debt.

         "Special Record Date" for the payment of any Defaulted Interested means
a date fixed by the Trustee pursuant to Section 307.

         "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such installment of principal or interest is due and payable.

         "Subsidiary" means a corporation more than 50% of the outstanding
Voting Stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries, or by the Company and one or more other
Subsidiaries. For purposes of this definition, "Voting Stock" means stock or
other similar interests having general voting power under ordinary circumstances
to elect at least a majority of the board of directors, managers or trustees of
the subject Person (irrespective of whether or not at the time stock of any
other class or classes or other similar interests shall have or might have
voting power by reason of the happening of any contingency).

                                     - 7 -
<PAGE>   14

         "Trading Days" means (i) if the Common Stock is listed or admitted for
trading on any national securities exchange, days on which such national
securities exchange is open for business, or (ii) if the Common Stock is not
listed or admitted for trading on any national securities exchange, days on
which trades may be made on the Nasdaq National Market or any similar system of
automated dissemination of quotations of securities prices on which the Common
Stock is quoted, or (iii) if the Common Stock is not listed or admitted to
trading on any national securities exchange or quoted on the Nasdaq National
Market or similar system, days on which the Common Stock is traded regular way
in the over-the-counter market and for which a closing bid and a closing asked
price for the Common Stock is available.

         "Trustee" means the Person named as "Trustee" in the first paragraph of
this instrument until a successor Trustee shall have become such with respect to
one or more series of Securities pursuant to the applicable provisions of this
Indenture, and thereafter "Trustee" shall mean or include each Person who is
then a Trustee hereunder, and if at any time there is more than one such Person,
"Trustee" as used with respect to the Securities of any series shall mean the
Trustee with respect to Securities of that series.

         "Trust Indenture Act" means the Trust Indenture Act of 1939, as in
force at the date as of which this instrument was executed; provided, however,
that in the event the Trust Indenture Act of 1939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

         "Vice President," when used with respect to the Company or the Trustee,
means any vice president, whether or not designated by a number or a word or
words added before or after the title "vice president."

SECTION 102. Compliance Certificates and Opinions.

         Upon any application or request by the Company to the Trustee to take
any action under any provision of this Indenture, the Company shall furnish to
the Trustee an Officers' Certificate stating that all conditions precedent, if
any, provided for in this Indenture relating to the proposed action have been
complied with and an Opinion of Counsel stating that in the opinion of such
counsel all such conditions precedent, if any, have been complied with, except
that in the case of any such application or request as to which the furnishing
of such documents is specifically required by any provision of this Indenture
relating to such particular application or request, no additional certificate or
opinion need be furnished.

         Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include:

                  (1) a statement that each individual signing such certificate
         or opinion has read such covenant or condition and the definitions
         herein relating thereto;

                  (2) a brief statement as to the nature and scope of the
         examination or investigation upon which the statements or opinions
         contained in such certificate or opinion are based;

                                     - 8 -
<PAGE>   15

                  (3) a statement that, in the opinion of each such individual,
         he has made such examination or investigation as is necessary to enable
         him to express an informed opinion as to whether or not such covenant
         or condition has been complied with; and

                  (4) a statement as to whether, in the opinion of each such
         individual, such condition or covenant has been complied with.

SECTION 103. Form of Documents Delivered to Trustee.

         In any case where several matters are required to be certified by, or
covered by an opinion of, any specified Person, it is not necessary that all
such matters be certified by, or covered by the opinion of, only one such
Person, or that they be so certified or covered by only one document, but one
such Person may certify or given an opinion with respect to some matters and one
or more other such Persons as to other matters, and any such Person may certify
or give an opinion as to such matters in one or several documents.

         Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon a certificate or opinion of, or
representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to the matters upon which his certificate or opinion is based are
erroneous. Any such certificate or Opinion of Counsel may be based, insofar as
it relates to factual matters, upon a certificate or opinion of, or
representations by, an officer or officers of the Company stating that the
information with respect to such factual matters is in the possession of the
Company, unless such counsel knows, or in the exercise of reasonable care should
know, that the certificate or opinion or representations with respect to such
matters are erroneous.

         Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

SECTION 104. Acts of Holders.

         (a) Any request, demand, authorization, direction, notice, consent,
waiver or other action provided by this Indenture to be given or taken by
Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments. Proof of execution of any such instrument or of
a writing appointing such agent shall be sufficient for any purpose of this
Indenture and (subject to Section 601) conclusive in favor of the Trustee and
the Company, if made in the manner provided in this Section.

         (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officers authorized by
law to take acknowledgements of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution

                                     - 9 -
<PAGE>   16

thereof. Where such execution is by a signer acting in a capacity other than his
individual capacity, such certificate or affidavit shall also constitute
sufficient proof of his authority. The fact and date of the execution of any
such instrument or writing, or the authority of the Person executing the same,
may also be proved in any other manner which the Trustee deems sufficient.

         (c) The ownership of Securities shall be proved by the Security
Register.

         (d) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee or the
Company in reliance thereon, whether or not notation of such action is made upon
such Security.

SECTION 105. Notices, Etc., to Trustee and Company.

         Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

                  (1) the Trustee by any Holder or by the Company shall be
         sufficient for every purpose hereunder if made, given, furnished or
         filed in writing to or with the Trustee at its Corporate Trust Office,
         or

                  (2) the Company by the Trustee or by any Holder shall be
         sufficient for every purpose hereunder (unless otherwise herein
         expressly provided) if in writing and mailed, first-class postage
         prepaid, to the Company addressed to the attention of its Corporate
         Secretary at the address of its principal office specified in the first
         paragraph of this instrument or at any other address previously
         furnished in writing to the Trustee by the Company.

SECTION 106. Notice of Holders; Waiver.

         Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and mailed, first-class postage prepaid, to each Holder affected
by such event, at his address as it appears in the Security Register, not later
than the latest date, and not earlier than the earliest date, prescribed for the
giving of such notice. In any case where notice to Holders is given by mail,
neither the failure to mail such notice, nor any defect in any notice so mailed,
to any particular Holder shall affect the sufficiency of such notice with
respect to other Holders. Where this Indenture provides for notice in any
manner, such notice may be waived in writing by the Person entitled to receive
such notice, either before or after the event, and such waiver shall be the
equivalent of such notice. Waivers of notice by Holders shall be filed with the
Trustee, but such filing shall not be a condition precedent to the validity of
any action taken in reliance upon such waiver.

         In case by reason of the suspension of regular mail service or by
reason of any other cause it shall be impracticable to give such notice by mail,
then notification as shall be made with the approval of the Trustee shall
constitute a sufficient notification for every purpose hereunder.

                                     - 10 -
<PAGE>   17

SECTION 107. Conflict With Trust Indenture Act.

         If any provision hereof limits, qualifies or conflicts with a provision
of the Trust Indenture Act that is required under such Act to be part of and
govern this Indenture, the latter provision shall control. If any provision of
this Indenture modifies or excludes any provision of the Trust Indenture Act
that may be so modified or excluded, the latter provision shall be deemed to
apply to this Indenture as so modified or to be excluded, as the case may be.

SECTION 108. Effect of Headings and Table of Contents.

         The Article and Section headings herein and the Table of Contents are
for convenience only and shall not affect the construction hereof.

SECTION 109. Successors and Assigns.

         All covenants and agreements in this Indenture by the Company shall
bind its successor and assigns, whether so expressed or not.

SECTION 110. Separability Clause.

         In case any provision in this Indenture or in the Securities shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

SECTION 111. Benefits of Indenture.

         Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.

SECTION 112. Governing Law.

         This Indenture shall be governed by and construed in accordance with
the laws of the State of New York and, unless the laws of another jurisdiction
are specified pursuant to Section 301, the Securities shall be governed by and
construed in accordance with the laws of the State of New York.

SECTION 113. Legal Holidays.

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of this Indenture or of the
Securities) payment of interest or principal (and premium, if any) need not be
made at such Place of Payment on such date, but may be made on the next
succeeding Business Day at such Place of Payment with the same force and effect
as if made on the Interest Payment Date or Redemption Date, or at the State
Maturity, provided that no interest shall accrue for the period from and after
such Interest Payment Date, Redemption Date or Stated Maturity, as the case may
be.

                                     - 11 -
<PAGE>   18

                                  ARTICLE TWO
                                 SECURITY FORMS

SECTION 201. Forms Generally.

         The Securities of each series shall be in substantially the form set
forth in this Article, or in such other form as shall be established by or
pursuant to a Board Resolution or in one or more indentures supplemental hereto,
in each case with such appropriate insertions, omissions, substitutions and
other variations as are required or permitted by this Indenture, and may have
such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any
securities exchange or as may, consistently herewith, be determined by the
officers executing such Securities, as evidenced by their execution of the
Securities. If the form of Securities of any series is established by action
taken pursuant to a Board Resolution, a copy of an appropriate record of such
action shall be certified by the Secretary or an Assistant Secretary of the
Company and delivered to the Trustee at or prior to the delivery of the Company
Order contemplated by Section 303 for the authentication and delivery of such
Securities.

         The Trustee's certificates of authentication shall be in substantially
the form set forth in this Article.

         The definitive Securities shall be printed, lithographed or engraved on
steel engraved borders or may be produced in any other manner, all as determined
by the officers executing such Securities, as evidenced by their execution of
such Securities.

SECTION 202. Form of Face of Security.

         [If the Security is an Original Issue Discount Security, insert--FOR
PURPOSES OF SECTION 1273 OF THE UNITED STATES INTERNAL REVENUE CODE OF 1986, AS
AMENDED, THE ISSUE PRICE OF THIS SECURITY IS __% OF ITS PRINCIPAL AMOUNT AND THE
ISSUE DATE IS _________, 20__.]

         CONVERSION OF THIS NOTE IS SUBJECT TO CERTIFICATION AND OTHER
REQUIREMENTS, AND ANY NOTES ISSUED ON SUCH CONVERSION WILL BE SUBJECT TO THE
TRANSFER RESTRICTIONS REFERRED TO ABOVE.

                              INFOCURE CORPORATION

                      _____% CONVERTIBLE SUBORDINATED NOTE
                                  DUE _________

No.                                                                  $
   --------------                                                     ----------

                                     - 12 -
<PAGE>   19

         INFOCURE CORPORATION, a Delaware corporation (hereinafter called the
"Company," which term includes any successor corporation under the Indenture
hereinafter referred to), for value received, hereby promises to pay to
______________________, or registered assigns, the principal sum of
______________________ Dollars on [If the Security is to bear interest prior to
Maturity, insert--, and to pay interest thereon from ________________, or from
the most recent Interest Payment Date to which interest has been paid or duly
provided for, semi-annually on ____________________ and __________________ in
each year, commencing ____________________, at the rate of ___% per annum, [If
applicable, insert method of calculation of floating rate,] until the principal
hereof is paid or made available for payment [If applicable, insert--, and (to
the extent that the payment of such interest shall be legally enforceable) at
the rate of ___% per annum on any overdue principal and premium and on any
overdue installment of interest]. The interest so payable, and punctually paid
or duly provided for, on any Interest Payment Date will, as provided in such
Indenture, be paid to the Person in whose name this Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest, which shall be the ______________ or
____________________ (whether or not a Business Day), as the case may be, next
preceding such Interest Payment Date. Any such interest not so punctually paid
or duly provided for will forthwith cease to be payable to the Holder on such
Regular Record Date and may either be paid to the Person in whose name this
Security (or one or more Predecessor Securities) is registered at the close of
business on a Special Record Date for the payment of such Defaulted Interest to
be fixed by the Trustee, notice whereof shall be given to Holders of Securities
of this series not less than ten (10) days prior to such Special Record Date, or
be paid at any time in any other lawful manner not inconsistent with the
requirements of any securities exchange on which the Securities of this series
may be listed, and upon such notice as may be required by such exchange, all as
more fully provided in said Indenture].

         [If the Security is not to bear interest prior to Maturity, insert--
The principal of this Security shall not bear interest except in the case of a
default in payment of principal upon acceleration, upon redemption or at Stated
Maturity and in such case the overdue principal of this Security shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
default in payment to the date payment of such principal has been made or duly
provided for. Interest on any overdue principal shall be payable on demand. Any
such interest on any overdue principal that is not paid on demand shall bear
interest at the rate of ___% per annum (to the extent that the payment of such
interest shall be legally enforceable), which shall accrue from the date of such
demand for payment to the date payment of such interest has been made or duly
provided for, and such interest shall also be payable on demand.]

         Payment of the principal of (and premium, if any) and [if applicable,
insert--any such] interest on this Security will be made at the offices or
agencies of the Company maintained for that purpose in the Borough of Manhattan,
The City of New York, [describe relevant currency] provided, however, that
payment of principal of (and premium, if any) will be made only on presentment
and surrender hereof [if applicable, insert--; [provided, however, that at the
option of the Company payment of interest may be made by check drawn upon any
Paying Agent and mailed on or prior to an Interest Payment Date to the address
of the Person entitled thereto as such address shall appear in the Security
Register.]]

                                     - 13 -
<PAGE>   20

         [Insert a brief description of the right, if any, of Holders to
                                elect repayment]

         Reference is hereby made to the further provisions of this Security set
forth on the reverse hereof, which further provisions shall for all purposes
have the same effect as if set forth at this place.

         Unless the certificate of authentication hereon has been executed by
the Trustee referred to on the reverse hereof, directly or through an
authenticating agent, by the manual signature of an authorized signer, this
Security shall not be entitled to any benefit under the Indenture or be valid or
obligatory for any purpose.

         IN WITNESS WHEREOF, the Company has caused this Security to be duly
executed under its corporate seal.

                                       INFOCURE CORPORATION

                                       By:
                                          --------------------------------------

[Seal]

Attest:

By:
   -------------------------------

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

  This is one of the Securities referred to in the within-mentioned Indenture.

Dated:
                                       -----------------------------------------
                                       as Trustee

                                       By:
                                          --------------------------------------
                                          Authorized Signatory

SECTION 203. Form of Reverse of Security.

         This Security is one of a duly authorized issue of securities of the
Company (herein called the "Securities"), issued and to be issued in one or more
series under an Indenture, dated as of _____, 2000 (herein called the
"Indenture") between the Company and _____________, as Trustee (herein called
the "Trustee," which term includes any successor trustee under the Indenture),
to which Indenture and all indentures supplemental thereto reference is hereby
made for a statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee, the holders of Senior Debt
and the Holders of the Securities and of the terms upon which the Securities
are, and are to be, authenticated and delivered. This Security is

                                     - 14 -
<PAGE>   21

one of the series designated on the face hereof [, limited in aggregate
principal amount to $_____].

         Subject to and upon compliance with the provisions of the Indenture,
the Holder of this Security is entitled, at his option, at any time on or after
the last original issue date of the Securities and prior to the close of
business on _______ __, ____, or in case this Security is called for redemption
or the Holder hereof has exercised its right to require the Company to
repurchase this Security, then in respect of this Security until and including,
but (unless the Company defaults in making the payment due upon redemption or
repurchase, as the case may be) not after, the close of business on the
Redemption Date or the Repurchase Date, as the case may be, to convert this
Security into newly issued fully paid and nonassessable shares of Common Stock
of the Company at an initial Conversion Rate equal to _________ shares of Common
Stock per $1,000 principal amount of Securities (or at the current adjusted
Conversion Rate if an adjustment has been made as provided in the Indenture) by
surrender of this Security, and also a duly executed conversion notice,
substantially in the form provided in Annex A of the Indenture (including the
tax certification contained in such notice), to the Company, subject to any laws
or regulations applicable thereto and subject to the right of the Company to
terminate the appointment of the Conversion Agent (as defined below), at the
Corporate Trust Office of the Trustee in The City of New York or at such other
offices or agencies outside the United States that the Company may designate
(each a "Conversion Agent"). Any Security surrendered for conversion during a
Record Date Period (except Securities called for redemption on a Redemption Date
or to be repurchased on a Repurchase Date during, in each case, such period)
must be accompanied by payment of an amount equal to the interest payable on the
Interest Payment Date relating to such Record Date Period on the principal
amount of such Security being surrendered for conversion, and the interest
payable in respect of such Security on such Interest Payment Date shall be paid
to the Holder of such Security as of the Regular Record Date relating to such
Record Date Period. The interest payable on such Interest Payment Date with
respect to any Security which has been called for redemption on a Redemption
Date, or is repurchaseable on a Repurchase Date, occurring, in either case,
during a Record Date Period, which Security is surrendered for conversion during
such Record Date Period, shall be paid to the Holder of such Security being
converted in an amount equal to the interest that would have been payable on
such Security if such Security had been converted as of the close of business on
such Interest Payment Date. Interest payable in respect of any Security
surrendered for conversion on or after an Interest Payment Date shall be paid to
the Holder of such Security as of the next preceding Regular Record Date,
notwithstanding the exercise of the right of conversion.

         The Company shall thereafter deliver to the Holder the fixed number of
shares of Common Stock (together with any cash adjustment, as provided in the
Indenture) into which this Security is convertible and such delivery will be
deemed to satisfy the Company's obligation to pay the principal amount of this
Security. No fractions of shares or scrip representing fractions of shares will
be issued on conversion, but instead of any fractional interest (calculated to
the nearest 1/100th of a share) the Company shall pay a cash adjustment as
provided in the Indenture, or alternatively the Company shall round up the
conversion transaction to the next higher whole share. In addition, the
Indenture provides that in case of certain consolidations or mergers to which
the Company is a party or the sale or transfer of all or substantially all of
the assets of the Company, the Indenture shall be amended, without the consent
of any Holders of Securities, so that this Security, if then Outstanding, will
be convertible thereafter, during the

                                     - 15 -
<PAGE>   22

period this Security shall be convertible as specified above, only into the kind
and amount of securities, cash and other property receivable upon consolidation,
merger, sale or transfer by a holder of the number of shares of Common Stock of
the Company into which this Security might have been converted immediately prior
to such consolidation, merger, sale or transfer (assuming such holder of Common
Stock failed to exercise any rights of election and received per share the kind
and amount received per share by a plurality of Non-Electing Shares).
Adjustments in the Conversion Rate of less than one percent of such price will
not be required, but any adjustment that would otherwise be required to be made
will be carried forward and taken into account in the computation of any
subsequent adjustment.

         Notwithstanding any provision hereof, no securities will be delivered
on conversion of this Security or any portion hereof unless the certification
and other requirements described in the Indenture are satisfied.

         [If applicable, insert--The Securities of this series are subject to
redemption upon not less than thirty (30) days notice by mail, [if applicable,
insert--(1) on ___________ in any year commencing with the year __________ and
ending with the year ______________ through operation of the sinking fund for
this series at a Redemption Price equal to 100% of the principal amount, and
(2)] at any time [on or after _________, ______________], as a whole or in part,
at the election of the Company, at the following Redemption Prices (expressed as
percentages of the principal amount): If redeemed [on or before _________, ____%
and if redeemed] during the 12-month period beginning ______________ of the
years indicated,

<TABLE>
<CAPTION>
                                   Redemption
        Year                         Price
        ----                       ----------
        <S>                        <C>
                                     %
</TABLE>

and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption [If applicable, insert--(whether
through operation of the sinking fund or otherwise)] with accrued interest to
the Redemption Date, but interest installments whose Stated Maturity is on or
prior to such Redemption Date will be payable to the Holders of such Securities,
or one or more Predecessor Securities, of record at the close of business on the
relevant Record Dates referred to on the face hereof, all as provided in the
Indenture.]

         [If applicable, insert--The Securities of this series are subject to
redemption upon not less than thirty (30) days notice by mail, (1) on
___________ in any year commencing with the year _________ and ending with the
year __________through operation of the sinking fund for this series at the
Redemption Prices for redemption through operation of the sinking fund
(expressed as percentages of the principal amount) set forth in the table below,
and (2) at any time [on or after _____________], as a whole or in part, at the
election of the Company, at the Redemption Prices for redemption otherwise than
through operation of the sinking fund (expressed as percentages of the principal
amount) set forth in the table below: If redeemed during the 12-month period
beginning _________ of the years indicated,

                                     - 16 -
<PAGE>   23

<TABLE>
<CAPTION>
                                         Redemption Price                       Redemption Price For
                                         For Redemption                         Redemption Otherwise
                                         Through Operation                      Than Through Operation
                 Year                    Of the Sinking Fund                    of the Sinking Fund
                 ----                    -------------------                    -------------------
                 <S>                     <C>                                    <C>
</TABLE>

and thereafter at a Redemption Price equal to ___% of the principal amount,
together in the case of any such redemption (whether through operation of the
sinking fund or otherwise) with accrued interest to the Redemption Date, but
interest installments whose Stated Maturity is on or prior to such Redemption
Date will be payable to the Holders of such Securities, or one or more
Predecessor Securities, of record at the close of business on the relevant
Record Dates referred to on the face hereof, all as provided in the Indenture.]

         [If applicable insert--Notwithstanding the foregoing, the Company may
not, prior to _________, redeem any Securities of this series as contemplated by
[Clause (2) of] the preceding paragraph as a part of, on in anticipation of, any
refunding operation by the application, directly or indirectly, of moneys
borrowed having an interest cost to the Company (calculated in accordance with
generally accepted financial practice) of less than ___% per annum.]

         [If applicable insert--The sinking fund for this series provides for
the redemption on _________ in each year beginning with the year ____________
and ending with the year _________ of [not less than] $___________ [("mandatory
sinking fund") and not more than $__________] aggregate principal amount of
Securities of this series. [Securities of this series acquired or redeemed by
the Company otherwise than through [mandatory] sinking fund payments may be
credited against subsequent [mandatory] sinking fund payments otherwise required
to be made.]

         In the event of redemption of this Security in part only, a new
Security or Securities of this series for the unredeemed portion hereof will be
issued in the name of the Holder hereof upon the cancellation hereof.

         [If applicable, insert provisions with respect to redemption or
repayment at the option of the Holder and the issuance of Securities in lieu of
Securities redeemed or repaid at the option of the Holder.]

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day at any Place of Payment,
then (notwithstanding any other provision of the Indenture or of this Security)
payment of interest or principal (and premium, if any) need not be made at such
Place of Payment on such date, but may be made on the next succeeding Business
Day at such Place of Payment with the same force and effect as if made on the
Interest Payment Date or Redemption Date, or at the Stated Maturity, provided
that no interest shall accrue for the period from and after such Interest
Payment Date, Redemption Date or Stated Maturity, as the case may be.

                                     - 17 -
<PAGE>   24

         The indebtedness evidenced by this Security is unsecured and, to the
extent provided in the Indenture, subordinate and subject in right of payment to
the prior payment in full of all Senior Debt of the Company, and this Security
is issued subject to the provisions of the Indenture with respect thereto. Each
holder of this Security, by accepting the same, (i) agrees to and shall be bound
by such provisions and (ii) authorizes and directs the Trustee on his behalf to
take such action as may be necessary or appropriate to effectuate the
subordination so provided.

         [If the Security is not an Original Issue Discount Security,--If an
Event of Default (as defined in the Indenture) with respect to the Company shall
occur and be continuing, the principal of the Securities of this series may be
declared due and payable in the manner and with the effect provided in the
Indenture.]

         [If the Security is an Original Issue Discount Security,--If an Event
of Default (as defined in the Indenture) with respect to the Company shall occur
and be continuing, an amount of principal of the Securities of this series may
be declared due and payable in the manner and with the effect provided in the
Indenture. Such amount shall be equal to--insert formula for determining the
amount. Upon payment (i) of the amount of principal so declared due and payable
and (ii) of interest on any overdue principal and overdue interest (in each case
to the extent that the payment of such interest shall be legally enforceable),
all of the Company's obligations in respect of the payment of the principal of
and interest, if any, on the Securities of the Series shall terminate.]

         [If applicable insert--The Indenture contains provisions for defeasance
at any time of [the entire indebtedness of this Security] [or] [certain
restrictive covenants and the related Events of Default with respect to this
Security] [,in each case] upon compliance by the Company with certain conditions
set forth therein.]

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of a majority in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains
provisions permitting the Holders of specified percentages in aggregate
principal amount of the Securities of each series at the time Outstanding, on
behalf of the Holders of all Securities of such series, to waive compliance by
the Company with certain provisions of the Indenture and certain past defaults
under the Indenture and their consequences. Any such consent or waiver by the
Holder of this Security shall be conclusive and binding upon such Holder and
upon all future Holders of this Security and of any Security issued upon the
registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security.

         No reference herein to the Indenture and no provision of this Security
or of the Indenture shall alter or impair the obligation of the Company, which
is absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Security at the times, place and rate, and in the coin or
currency, herein prescribed.

                                     - 18 -
<PAGE>   25

         As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the Security
Register, upon surrender of this Security for registration of transfer at the
office or agency of the Company in any place where the principal of (and
premium, if any) and interest on this Security are payable, duly endorsed by, or
accompanied by a written instrument of transfer in form satisfactory to the
Company and the Security Registrar duly executed by, the Holder hereof or his
attorney duly authorized in writing, and thereupon one or more new Securities of
this series, of authorized denominations and for the same aggregate principal
amount, will be issued to the designated transferee or transferees.

         The Securities of this series are issuable only in registered form
without coupons in denominations of $________ and any integral multiple thereof.
As provided in the Indenture and subject to certain limitations therein set
forth, Securities of this series are exchangeable for a like aggregate principal
amount of Securities of this series of a different authorized denomination, as
requested by the Holder surrendering the same.

         No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         The Indenture provides that a Subsidiary may assume the obligations of
the Company under the Indenture and the Securities, subject to the satisfaction
of certain conditions, including the Company's guaranteeing of the Subsidiary's
obligations under this Security and the Indenture.

         Prior to due presentment of this Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name this Security is registered as the owner hereof for all
purposes, whether or not this Security shall be overdue, and neither the
Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

         THE INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, THE UNITED STATES OF AMERICA
WITHOUT REGARD TO PRINCIPLES REGARDING CONFLICTS OF LAWS.

         All terms used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

         [If applicable, insert form of opinion to elect repayment]

SECTION 204. Form of Trustee's Certificate of Authentication.

         This is one of the Securities of the series designated therein referred
to the in the within-mentioned Indenture.

                                  [____________________], as Trustee

                                  By:
                                     -------------------------------------------
                                            Authorized Signature

                                     - 19 -
<PAGE>   26

SECTION 205. Issuance of Book-Entry Securities.

         Any Book-Entry Security authenticated and issued hereunder shall, in
addition to the provisions contained in Section 202 and 203, bear a legend in
substantially the following form, subject to modification by the Depositary:

                  "THIS SECURITY IS A BOOK-ENTRY SECURITY WITHIN THE MEANING OF
         THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF
         A DEPOSITARY OR A NOMINEE OF A DEPOSITARY. THIS SECURITY IS
         EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER
         THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES
         DESCRIBED IN THE INDENTURE AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
         BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
         DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY."

         Any Book-Entry Security issued hereunder may provide that it shall
represent the aggregate amount of Outstanding Securities from time to time
endorsed thereon and may also provide that the aggregate may from time to time
be reduced to reflect exchanges or increased to reflect the issuance of
additional uncertificated Securities of such series. Any endorsement of a
Book-Entry Security to reflect the amount, or any increase or decrease in the
amount, of Outstanding Securities represented thereby shall be made by the
Trustee and in such manner as shall be specified in such Security or the Company
Order to be delivered to the Trustee pursuant to Section 303. Any instructions
by the Company with respect to a Book-Entry Security, after its initial
issuance, shall be in writing but need not comply with Section 102.

         Each Depositary designated pursuant to Section 301 for a Book-Entry
Security must, at the time of its designation and at all times while it serves
as Depositary, be a clearing agency registered under the Securities Exchange Act
of 1934 and any other applicable statute or regulation.

         Book-Entry Securities may be issued only in registered form and in
either temporary or permanent form.

                                 ARTICLE THREE
                                 THE SECURITIES

SECTION 301. Amount Unlimited; Issuable in Series.

         The aggregate principal amount of Securities which may be authenticated
and delivered under this Indenture is unlimited.

                                     - 20 -
<PAGE>   27

         The Securities may be issued in one or more series. There shall be
established in or pursuant to a Board Resolution, and set forth in an Officers'
Certificate, or established in one or more indentures supplemental hereto, prior
to the issuance of Securities of any series:

                  (1) the title of the Securities of the series (which shall
         distinguish the Securities of the series from all other Securities);

                  (2) any limit upon the aggregate principal amount of the
         Securities of the series which may be authenticated and delivered under
         this Indenture (except for Securities authenticated and delivered upon
         registration of transfer of, or in exchange for, or in lieu of, other
         Securities of the series pursuant to Section 304, 305, 306, 906 or
         1107);

                  (3) the date or dates on which the principal of the Securities
         of the series is payable;

                  (4) the rate or rates at which the Securities of the series
         shall bear interest, if any, the date or dates from which such interest
         shall accrue, the Interest Payment Dates on which such interest shall
         be payable and the Regular Record Date for the interest payable on any
         Interest Payment Date;

                  (5) if the amount or payments of principal of and any premium
         or interest on the Securities of the series may be determined with
         reference to an index, the manner in which such amount shall be
         determined;

                  (6) the place or places, if any, where the principal of (and
         premium, if any) and interest on Securities of the series shall be
         payable;

                  (7) the period or periods within which, the price or prices at
         which and the terms and conditions upon which Securities of the series
         may be redeemed, in whole or in part, at the option of the Company;

                  (8) the obligation, if any, of the Company to redeem or
         purchase Securities of the series pursuant to any sinking fund or
         analogous provisions or at the option of a Holder thereof and the
         period or periods within which, the price or prices at which and the
         terms and conditions upon which Securities of the series shall be
         redeemed or purchased, in whole or in part, pursuant to such
         obligation;

                  (9) if other than denominations of $1,000 and any integral
         multiple thereof, the denominations in which Securities of the series
         shall be issuable;

                  (10) the currency, currencies or currency units in which
         payment of the principal of and any premium and interest on the
         Securities of the series shall be payable if other than the currency of
         the United States of America and the manner of determining the
         equivalent thereof in the currency of the United States of America for
         purposes of the definition of "Outstanding" in Section 101;

                                     - 21 -
<PAGE>   28

                  (11) if other than the principal amount thereof, the portion
         of the principal amount of Securities of the series which shall be
         payable upon declaration of acceleration of the Maturity thereof
         pursuant to Section 502;

                  (12) if the principal of or any premium or interest on any
         Securities of the series is to be payable, at the election of the
         Company or a Holder thereof, in one or more currencies or currency
         units other than that or those in which the Securities are stated to be
         payable, the currency, currencies or currency units in which payment of
         the principal of and any premium and interest on Securities of such
         series as to which such election is made shall be payable, and the
         periods within which and the terms and conditions upon which such
         election is to be made;

                  (13) if other than the law of the State of New York, the law
         which will govern the terms of the Securities;

                  (14) the form of the Securities, and the extent, if any, to
         which any of the Securities will be issuable in Book-Entry form and, in
         such case, the Depositary for such Book-Entry Security or Securities,
         and the terms and conditions, if any, upon which such Book-Entry
         Security may be exchanged in whole or in part for definitive
         Securities, if other than as set forth in Section 305;

                  (15) any modifications to Article Sixteen;

                  (16) any deletions from, modifications of or additions to the
         Events of Default or covenants of the Company with respect to the
         Securities of the series, whether or not such Event of Default or
         covenants are consistent with the Events of Default or covenants set
         forth herein; and

                  (17) any other terms of the series (which terms shall not be
         inconsistent with the provisions of this Indenture).

         All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or pursuant
to such Board Resolution and set forth in such Officers' Certificate or in any
such indenture supplemental hereto.

         At the option of the Company, interest on the Securities of any series
that bears interest may be paid by mailing a check to the address of the person
entitled thereto as such address shall appear in the Securities Register.

         If any of the terms of the series are established by action taken
pursuant to a Board Resolution, a copy of an appropriate record of such action
shall be certified by the Secretary or an Assistant Secretary of the Company and
delivered to the Trustee at or prior to the delivery of the Officers'
Certificate setting forth the terms of the series.

SECTION 302. Denominations.

         The Securities of each series shall be issuable in registered form
without coupons in such denominations as shall be specified as contemplated by
Section 301. In the absence of any such

                                     - 22 -
<PAGE>   29

provisions with respect to the Securities of any series, the Securities of such
series shall be issuable in denominations of $1,000 and any integral multiple
thereof.

SECTION 303. Execution, Authentication, Delivery and Dating.

         The Securities shall be executed on behalf of the Company by its
Chairman of the Board, its President or one of its Vice Presidents, or its
Treasurer, under its corporate seal reproduced thereon attested by its Secretary
or one of its Assistant Secretaries. The signature of any of these officers on
the Securities may be manual or facsimile.

         Securities bearing the manual or facsimile signatures of individuals
who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such
officers prior to the authentication and delivery of such Securities or did not
hold such offices at the date of such Securities.

         At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series executed by the
Company to the Trustee for authentication, together with a Company Order for the
authentication and delivery of such Securities, and the Trustee in accordance
with the Company Order and subject to the provisions hereof shall authenticate
and deliver such Securities. If the form or terms of the Securities of the
series have been established in or pursuant to one or more Board Resolutions as
permitted by Sections 201 and 301, in authenticating such Securities, and
accepting the additional responsibilities under this Indenture in relation to
such Securities, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, an Opinion of Counsel
stating:

                  (a) if the form of such Securities has been established by or
         pursuant to Board Resolution as permitted by Section 201, that such
         form has been established in conformity with the provisions of this
         Indenture;

                  (b) if the terms of such Securities have been established by
         or pursuant to Board Resolution as permitted by Section 301, that such
         terms have been established in conformity with the provisions of this
         Indenture; and

                  (c) that all conditions precedent to the authentication and
         delivery of such Securities have been complied with and that such
         Securities, when authenticated and delivered by the Trustee and issued
         by the Company in the manner and subject to any conditions specified in
         such Opinion of Counsel, will constitute valid and legally binding
         obligations of the Company, enforceable in accordance with their terms,
         subject to bankruptcy, insolvency, reorganization and other laws of
         general applicability relating to or affecting the enforcement of
         creditors rights and to general equity principles.

         If such form or terms have been so established, the Trustee shall not
be required to authenticate such Securities if the issue of such Securities
pursuant to this Indenture will affect the Trustee's own rights, duties or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

         Each Security shall be dated the date of its authentication.

                                     - 23 -
<PAGE>   30

         No Security shall be entitled to any benefit under this Indenture or be
valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only evidence, that such Security
has been duly authenticated and delivered hereunder and is entitled to the
benefits of this Indenture.

         If the Company shall establish pursuant to Section 301 that the
Securities of a series are to be issued in whole or in part in the form of one
or more Book-Entry Securities, then the Company shall execute and the Trustee
shall, in accordance with this Section and a Company Order for the
authentication and delivery of such Book-Entry Securities with respect to such
series, authenticate and deliver one or more Book-Entry Securities in permanent
or temporary form that (i) shall represent and shall be denominated in an
aggregate amount equal to the aggregate principal amount of the Outstanding
Securities of such series to be represented by one or more Book-Entry
Securities, (ii) shall be registered in the name of the Depositary for such
Book-Entry Security or Securities or the nominee of such Depositary and (iii)
shall be delivered by the Trustee to such Depositary or pursuant to such
Depositary's instructions.

SECTION 304. Temporary Securities.

         Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.

         If temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay. After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder. Upon surrender for cancellation of any one
or more temporary Securities of any series, the Company shall execute and the
Trustee shall authenticate and deliver in exchange therefor a like principal
amount of definitive Securities of the same series of authorized denominations.
Until so exchanged the temporary Securities of any series shall in all respects
be entitled to the same benefits under this Indenture as definitive Securities
of such series.

SECTION 305. Registration, Registration of Transfer and Exchange.

         The Company shall cause to be kept at the office of the Security
Registrar designated pursuant to this Section 305 or Section 1002 a register
(being the combined register of the Security Registrar and Co-Security
Registrars and herein sometimes collectively referred to as the "Security
Register") in which, subject to such reasonable regulations as it may prescribe,
the Company shall provide for the registration of Securities and for transfers
of Securities. The Trustee is hereby initially appointed Security Registrar for
the purpose of registering Securities and transfers of Securities as herein
provided.

                                     - 24 -
<PAGE>   31

         Upon surrender for registration of transfer of any Security of any
series at the office or agency in a Place of Payment for that series, the
Company shall execute, and the Trustee shall authenticate and deliver, in the
name of the designated transferee or transferees, one or more new Securities of
the same series, of any authorized denominations and of a like aggregate
principal amount.

         At the option of the Holder, Securities of any series may be exchanged
for other Securities of the same series, of any authorized denominations and of
a like aggregate principal amount, upon surrender of the Securities to be
exchanged at such office or agency. Whenever any Securities are so surrendered
for exchange, the Company shall execute, and the Trustee shall authenticate and
deliver, the Securities which the Holder making the exchange is entitled to
receive.

         All Securities issued upon registration of transfer or exchange of
Securities shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

         Every Security presented or surrendered for registration of transfer or
for exchange shall (if so required by the Company, the Security Registrar or any
Co-Security Registrar) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company, the Security
Registrar or such Co-Security Registrar duly executed, by the Holder thereof or
his attorney duly authorized in writing.

         No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906 or 1107 not involving any transfer.

         Neither the Company, the Security Registrar nor any Co-Security
Registrar shall be required (i) to issue, register the transfer of or exchange
Securities of any series during a period beginning at the opening of business
fifteen (15) days before the day of the mailing of a notice of redemption of
Securities of that series selected for redemption under Section 1103 and ending
at the close of business on the day of such mailing, or (ii) to register the
transfer of or exchange any Security so selected for redemption in whole or in
part, except the unredeemed portion of any Security being redeemed in part or
(iii) to issue, register the transfer of or exchange any Security which has been
surrendered for repayment at the option of the Holder, except the portion, if
any, of such Security not to be so repaid.

         If at any time the Depositary for the Securities of a series notifies
the Company that it is unwilling or unable to continue as Depositary for the
Securities of such series or if at any time the Depositary for the Securities of
such series shall no longer be eligible under Section 205, the Company shall
appoint a successor Depositary with respect to the Securities of such series. If
a successor Depositary for the Securities of such series is not appointed by the
Company within ninety (90) days after the Company receives such notice or
becomes aware of such ineligibility, the Company's election pursuant to Section
301(14) shall no longer be effective with respect to the Securities of such
series and the Company will execute, and the Trustee, upon receipt of a

                                     - 25 -
<PAGE>   32

Company order for the authentication and delivery of definitive Securities of
such series, will authenticate and deliver Securities of such series of like
tenor and terms in definitive form in an aggregate principal amount equal to the
principal amount of the Book-Entry Security or Securities representing such
series in exchange for such Book-Entry Security or Securities.

         The Company may at any time and in its sole discretion determine that
the Securities of any series issued in the form of one or more Book-Entry
Securities shall no longer be represented by such Book-Entry Security or
Securities. In such event the Company will execute, and the Trustee, upon
receipt of a Company Order for the authentication and delivery of definitive
Securities of such series, will authenticate and deliver Securities of such
series of like tenor and terms in definitive form in an aggregate principal
amount equal to the principal amount of the Book-Entry Security or Securities
representing such series in exchange for such Book-Entry Security or Securities.

         If specified by the Company pursuant to Section 301 with respect to a
series of Securities, or if an Event of Default, or an event which with notice,
lapse of time or both would be an Event of Default with respect to the
Securities of such series has occurred and is continuing, a Person owning a
beneficial interest in a Book-Entry Security or Securities of such series may
instruct the Depositary for such series of Securities to surrender such
Book-Entry Security for such series of Securities in exchange in whole or in
part for Securities of such series of like tenor in definitive registered form.
Thereupon, the Company shall execute, and the Trustee shall authenticate and
deliver, without service charge:

                  (a) to the Person specified by such Depositary a new Security
         or Securities of the same series, of like tenor, of any authorized
         denomination as requested by such Person, in an aggregate principal
         amount equal to and in exchange for such Person's beneficial interest
         in the Book-Entry Security; and

                  (b) to such Depositary a new Book-Entry Security of like tenor
         in an authorized denomination equal to the difference, if any, between
         the principal amount of the surrendered Book-Entry Security and the
         aggregate principal amount of Securities delivered pursuant to clause
         (a) above.

         Upon the exchange of a Book-Entry Security for Securities in definitive
form, such Book-Entry Security shall be cancelled by the Trustee. Securities
issued in exchange for a Book-Entry Security pursuant to this Section shall be
registered in such names and in such authorized denominations, and delivered to
such addresses, as the Depositary for such Book-Entry Security, pursuant to
instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee in writing. The Trustee shall deliver such Securities to
the Persons in whose names such Securities are so registered or to the
Depositary.

         Notwithstanding any other provision of this Section, unless and until
it is exchanged in whole or in part for Securities in definitive form, a
Book-Entry Security representing all or a portion of the Securities of a series
may not be transferred except as a whole by the Depositary for such series to a
nominee of such Depositary or by a nominee of such Depositary to such Depositary
or another nominee of such Depositary or by such Depositary or any such nominee
to a successor Depositary for such series or a nominee of such successor
Depositary.

                                     - 26 -
<PAGE>   33

SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities.

         If any mutilated Security is surrendered to the Trustee and there is
delivered to the Company and the Trustee such security or indemnity as may be
required by them to save each of them and any agent of either of them harmless
then the Company shall execute and the Trustee shall authenticate and deliver in
exchange therefor a new Security of the same series and of like tenor and
principal amount and bearing a number not contemporaneously outstanding.

         If there shall be delivered to the Company and the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security and (ii)
such security or indemnity as may be required by them to save each of them and
any agent of either of them harmless, then, in the absence of notice to the
Company or the Trustee that such Security has been acquired by a bona fide
purchaser, the Company shall execute and upon its request the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

         In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion may,
instead of issuing a new Security, pay such Security.

         Upon the issuance of any new Security under this Section, the Company
may require the payment of a sum sufficient to cover any tax or other
governmental charge that may be imposed in relation thereto and any other
expenses (including the fees and expenses of the Trustee) connected therewith.

         Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Securities of that series duly issued hereunder.

         The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities.

SECTION 307. Payment of Interest; Interest Rights Preserved.

         Interest on any Security which is payable, and is punctually paid or
duly provided for, on any Interest Payment Date shall be paid to the Person in
whose name that Security (or one or more Predecessor Securities) is registered
at the close of business on the Regular Record Date for such interest.

         Any interest on any Security of any series which is payable, but is not
punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in Clause (1) or (2) below:

                                     - 27 -
<PAGE>   34

                  (1) The Company may elect to make payment of any Defaulted
         Interest to the Persons in whose name the Securities of such series (or
         their respective Predecessor Securities) are registered at the close of
         business on a Special Record Date for the payment of such Defaulted
         Interest, which shall be fixed in the following manner. The Company
         shall notify the Trustee in writing of the amount of Defaulted Interest
         proposed to be paid on each Security of such series and the date of the
         proposed payment, and at the same time the Company shall deposit with
         the Trustee an amount of money equal to the aggregate amount proposed
         to be paid in respect of such Defaulted Interest or shall make
         arrangements satisfactory to the Trustee for such deposit prior to the
         date of the proposed payment, such money when deposited to be held in
         trust for the benefit of the persons entitled to such Defaulted
         Interest as in this Clause provided. Thereupon the Trustee shall fix a
         Special Record Date for the payment of such Defaulted Interest which
         shall not be more than fifteen (15) days and not less than ten (10)
         days prior to the date of the proposed payment and not less than ten
         (10) days after the receipt by the Trustee of the notice of the
         proposed payment. The Trustee shall promptly notify the Company of such
         Special Record Date and, in the name and at the expense of the Company,
         shall cause notice of the proposed payment of such Defaulted Interest
         and the Special Record Date thereof to be mailed, first-class postage
         prepaid, to each Holder of the Securities of such series at his address
         as it appears in the Security Register, not less than ten (10) days
         prior to such Special Record Date. Notice of the proposed payment of
         such Defaulted Interest and the Special Record Date therefor having
         been so mailed, such Defaulted Interest shall be paid to the Persons in
         whose names the Securities of such series (or their respective
         predecessor securities) are registered at the close of business on such
         Special Record Date and shall no longer be payable pursuant to the
         following Clause (2).

                  (2) The Company may make payment of any Defaulted Interest on
         the Securities of any series in any other lawful manner not
         inconsistent with the requirements of any securities exchange on which
         such Securities may be listed, and upon such notice as may be required
         by such exchange, if, after notice given by the Company to the Trustee
         of the proposed payment pursuant to this Clause, such manner of payment
         shall be deemed practicable by the Trustee.

         Subject to the foregoing provisions of this Section, each Security
delivered under this Indenture upon registration of transfer of or in any
exchange for or in lieu of any other Security shall carry the rights to interest
accrued and unpaid, and to accrue, which were carried by such other Security.

         Any Security surrendered for conversion during a Record Date Period
(except Securities called for redemption on a Redemption Date or to be
repurchased on a Repurchase Date during, in each case, such period) must be
accompanied by payment of an amount equal to the interest payable on the
Interest Payment Date relating to such Record Date Period on the principal
amount of such Securities being surrendered for conversion, and the interest
payable in respect of such Security on such Interest Payment Date shall be paid
to the Holder of such Security as of the Regular Record Date relating to such
Record Date Period. The interest payable on such Interest Payment Date with
respect to any Security which has been called for redemption on a Redemption
Date, or is repurchaseable on a Repurchase Date, occurring, in either case,
during such Record Date

                                     - 28 -
<PAGE>   35

Period, which Security is surrendered for conversion during such Record Date
Period, shall be paid to the Holder of such Security being converted in an
amount equal to the interest that would have been payable on such Security if
such Security had been converted as of the close of business on such Interest
Payment Date. Interest payable in respect of any Security surrendered for
conversion on or after an Interest Payment Date shall be paid to the Holder of
such Security as of the next preceding Regular Record Date, notwithstanding the
exercise of the right of conversion.

SECTION 308. Persons Deemed Owners.

         Prior to due presentment of a Security for registration of transfer,
the Company, the Trustee and any agent of the Company or the Trustee may treat
the Person in whose name such Security is registered as the owner of such
Security for the purpose of receiving payment of principal of (and premium, if
any) and (subject to Section 307) interest on such Security and for all other
purposes, whatsoever, whether or not such Security be overdue, and neither the
Company, the Trustee nor any agent of the Company or the Trustee shall be
affected by notice to the contrary.

SECTION 309. Cancellation.

         All Securities surrendered for payment, redemption, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee
and shall be promptly cancelled by it. The Company may at any time deliver to
the Trustee for cancellation any Securities previously authenticated and
delivered hereunder which the Company may have acquired in any manner
whatsoever, and all Securities so delivered shall be promptly cancelled by the
Trustee. No Securities shall be authenticated in lieu of or in exchange for any
Securities cancelled as provided in this Section, except as expressly permitted
by this Indenture. All cancelled Securities held by the Trustee shall be
disposed of as directed by a Company Order.

SECTION 310. Computation of Interest.

         Except as otherwise contemplated by Section 301 for Securities of any
series, interest on the Securities of each series shall be computed on the basis
of a year of twelve 30-day months.

SECTION 311. Regarding Beneficial Ownership Interests in Book-Entry Securities.

         Neither the Company, the Trustee, any Authenticating Agent, any Paying
Agent nor the Security Registrar will have any responsibility or liability for
any aspect of the records relating to or payments made on account of beneficial
ownership interests in a Book-Entry Security or for maintaining, supervising or
reviewing any records relating to such beneficial ownership interests.

                                  ARTICLE FOUR
                           SATISFACTION AND DISCHARGE

SECTION 401. Satisfaction and Discharge of Indenture.

         This Indenture shall upon Company Request cease to be of further effect
(except as to (i) remaining rights of conversion and registration of transfer,
substitution and exchange of

                                     - 29 -
<PAGE>   36

Securities, (ii) rights hereunder of Holders to receive payments of principal of
(and premium, if any) and interest on the Securities, and other rights, duties
and obligations of the Holders as beneficiaries hereof with respect to the
amounts, if any, so deposited with the Trustee, and (iii) the rights,
obligations and immunities of the Trustee hereunder), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

                  (1) either

                           (A) all Securities theretofore authenticated and
                  delivered (other than (i) Securities which have been
                  destroyed, lost or stolen and which have been replaced or paid
                  as provided in Section 306 and (ii) Securities for whose
                  payment money has theretofore been deposited in trust or
                  segregated and held in trust by the Company and thereafter
                  repaid to the Company or discharged from such trust, as
                  provided in Section 1003) have been delivered to the Trustee
                  for cancellation; or

                           (B) all such Securities not theretofore delivered to
                  the Trustee for cancellation (i) have become due and payable,
                  or (ii) will become due and payable at their Stated Maturity
                  within one year, or (iii) are to be called for redemption
                  within one year under arrangements satisfactory to the Trustee
                  for the giving of notice of redemption by the Trustee in the
                  name, and at the expense, of the Company; and the Company, in
                  the case of (i), (ii), or (iii) above, has deposited or caused
                  to be deposited with the Trustee as trust funds in trust for
                  the purpose an amount sufficient to pay and discharge the
                  entire indebtedness on such Securities not theretofore
                  delivered to the Trustee for cancellation, for principal (and
                  premium, if any) and interest to the date of such deposit (in
                  the case of Securities which have become due and payable) or
                  to the Stated Maturity or Redemption Date, as the case may be;

                  (2) the Company has paid or caused to be paid all other sums
         payable hereunder by the Company; and

                  (3) the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all conditions
         precedent herein provided for relating to the satisfaction and
         discharge of this Indenture have been complied with.

In the event there are Securities of two or more series hereunder, the Trustee
shall be required to execute an instrument acknowledging satisfaction and
discharge of this Indenture only if requested to do so with respect to
Securities of all series as to which it is Trustee and if the other conditions
thereto are met. In the event there are two or more Trustees hereunder, then the
effectiveness of any such instrument shall be conditioned upon receipt of such
instruments from all Trustees hereunder.

         Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have deposited with the Trustee pursuant to

                                     - 30 -
<PAGE>   37

subclause (B) of Clause (1) of this Section, the obligations of the Trustee
under Section 402 and the last paragraph of Section 1003 shall survive.

SECTION 402. Application of Trust Money.

         Subject to the provisions of the last paragraph of Section 1003, all
money deposited with the Trustee pursuant to Section 401 shall be held in trust
and applied by it, in accordance with the provisions of the Securities and this
Indenture, to the payment either directly or through any Paying Agent (including
the Company acting as its own Paying Agent) as the Trustee may determine, to the
Persons entitled thereto, of the principal (and premium, if any) and interest
for whose payment such money has been deposited with the Trustee.

                                  ARTICLE FIVE
                                    REMEDIES

SECTION 501. Events of Default.

         "Event of Default," wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be occasioned by the provisions of Article
13 or be voluntary or involuntary or be effected by operation of law or pursuant
to any judgment, decree or order of any court or any order, rule or regulation
of any administrative or governmental body):

                  (1) default in the payment of any interest upon any Security
         of that series when it becomes due and payable, and continuance of such
         default for a period of thirty (30) days; or

                  (2) default in the payment of the principal of (or premium, if
         any, on) any Security of that series at its Maturity; or

                  (3) default in the deposit of any sinking fund payment, when
         and as due by the terms of a Security of that series; or

                  (4) default in the performance, or breach, of any covenant or
         warranty of the Company in this Indenture (other than a covenant or
         warranty a default in whose performance or whose breach is elsewhere in
         this Section specifically dealt with or which has expressly been
         included in this Indenture solely for the benefit of series of
         Securities other than that series), and continuance of such default or
         breach for a period of ninety (90) days after there has been given, by
         registered or certified mail, to the Company by the Trustee or to the
         Company and the Trustee by the Holders of at least twenty-five percent
         (25%) in principal amount of the Outstanding Securities of that series
         a written notice specifying such default or breach and requiring it to
         be remedied and stating that such notice is a "Notice of Default"
         hereunder; or

                  (5) Any Indebtedness of the Company in an outstanding
         principal amount in excess of $20,000,000, whether such Indebtedness
         now exists or shall hereafter be created, is not paid at final maturity
         or the payment thereof is accelerated and such default in payment or
         acceleration has not been cured or rescinded or annulled within a

                                     - 31 -
<PAGE>   38

         period of thirty (30) days after there shall have been given, by
         registered or certified mail, to the Company by the Trustee or to the
         Company and the Trustee by the Holders of at least twenty-five percent
         (25%) in principal amount of the Outstanding Securities of that series
         a written notice specifying such default and requiring the Company to
         cause such Indebtedness to be discharged or cause such acceleration to
         be rescinded or annulled;

                  (6) the entry of a decree or order for relief in respect of
         the Company by a court having jurisdiction in the premises in an
         involuntary case under the Federal or state bankruptcy laws, as now or
         hereafter constituted, and the continuance of any such decree or order
         unstayed and in effect for a period of sixty (60) consecutive days; or

                  (7) the commencement by the Company of a voluntary case under
         the Federal or state bankruptcy laws, as now or hereafter constituted,
         or the consent by the Company to the entry of a decree or order for
         relief in an involuntary case under any such law; or

                  (8) any other Event of Default provided with respect to
         Securities of such series specified as contemplated by Section 301.

SECTION 502. Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default with respect to Securities of any series at the
time Outstanding occurs and is continuing, then in every such case the Trustee
or the Holders of not less than twenty-five percent (25%) in principal amount of
the Outstanding Securities of that series may declare the principal amount (or,
if the Securities of that series are Original Issue Discount Securities, such
portion of the principal amount as may be specified in the terms of that series)
of all of the Securities of that series to be due and payable immediately, by a
notice in writing to the Company (and to the Trustee if given by Holders), and
upon such declaration such principal amount (or specified amount) shall become
immediately due and payable. Notwithstanding the foregoing, if an Event of
Default specified in Clauses (6) or (7) of Section 501 with respect to
Securities of any series at the time outstanding occurs and is continuing, then
in each case the principal amount (or, if the Securities of that series are
Original Issue Discount Securities, such portion of the principal amount as may
be specified in the terms of that series) of all of the Securities of that
series shall automatically become due and payable immediately without any
declaration or other Act on the part of the Trustee or any Holder.

         At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter in this
Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if

                  (1) the Company has paid or deposited with the Trustee a sum
         sufficient to pay

                           (A) all overdue interest on all Securities of that
                  series,

                           (B) the principal of (and premium, if any, on) any
                  Securities of that series which have become due otherwise than
                  by such declaration of acceleration and interest thereon at
                  the rate or rates prescribed therefor in such Securities,

                                     - 32 -
<PAGE>   39

                           (C) to the extent that payment of such interest is
                  lawful, interest upon overdue interest at the rate or rates
                  prescribed therefor in such Securities, and

                           (D) all sums paid or advanced by the Trustee
                  hereunder and the reasonable compensation, expenses,
                  disbursements and advances of the Trustee, its agents and
                  counsel; and

                  (2) all Events of Default with respect to Securities of that
         series have been cured or waived as provided in Section 513.

No such recision shall affect any subsequent default or impair any right
consequent thereon.

SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee.

         The Company covenants that if

                  (1) default is made in the payment of any interest on any
         Security when such interest becomes due and payable and such default
         continues for a period of thirty (30) days, or

                  (2) default is made in the payment of the principal of (or
         premium, if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal (and premium, if any) and interest and, to the extent
that payment of such interest shall be legally enforceable, interest on any
overdue principal (and premium, if any) and on any overdue interest, at the rate
or rates prescribed therefor in such Securities, and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

         If the Company fails to pay such amounts forthwith upon such demand,
the Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, may
prosecute such proceeding to judgment or final decree and may enforce the same
against the Company or other obligor upon such Securities and collect the moneys
adjudged or decreed to be payable in the manner provided by law out of the
property of the Company or any other obligor upon such Securities, wherever
situated.

         If an Event of Default with respect to Securities of any series occurs
and is continuing, the Trustee may in its discretion proceed to protect and
enforce its rights and the rights of the Holders of Securities of such series by
such appropriate judicial proceedings as the Trustee shall deem most effectual
to protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.

                                     - 33 -
<PAGE>   40

SECTION 504. Trustee May File Proofs of Claim.

         In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal of the Securities
shall then be due and payable as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any demand on
the Company for the payment of overdue principal or interest) shall be entitled
and empowered, by intervention in such proceeding or otherwise, to take any and
all actions authorized under the Trust Indenture Act in order to have claims of
the Holders and the Trustee allowed in any such proceeding. In particular, the
Trustee shall be authorized

                  (i) to file and prove a claim for the whole amount of
         principal (and premium, if any) and interest owing and unpaid in
         respect of the Securities and to file such other papers or documents as
         may be necessary or advisable in order to have the claims of the
         Trustee (including any claim for the reasonable compensation, expenses,
         disbursements and advances of the Trustee, its agents and counsel) and
         of the Holders allowed in such judicial proceeding, and

                  (ii) to collect and receive any moneys or other property
         payable or deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders, to
pay to the Trustee any amount due it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other
amounts due the Trustee under Section 607.

         Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment or composition affecting the Securities
or the rights of any Holder thereof or to authorize the Trustee to vote in
respect of the claim of the Holder in any such proceeding.

SECTION 505. Trustee May Enforce Claims Without Possession of Securities.

         All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust, and any recovery of judgment shall, after
provision for the payment of the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, be for the
ratable benefit of the Holders of the Securities in respect of which such
judgment has been recovered.

                                     - 34 -
<PAGE>   41

SECTION 506. Application of Money Collected.

         Any money collected by the Trustee pursuant to this Article shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal (or premium,
if any) or interest, upon presentation of the Securities and the notation
thereof of the payment if only partially paid and upon surrender thereof if
fully paid:

         First: To the payment of all amounts due the Trustee under Section 607;
and

         Second: To the payment of the amounts then due and unpaid for principal
of (and premium, if any) and interest on the Securities in respect of which or
for the benefit of which such money has been collected, ratably, without
preference or priority of any kind, according to the amounts due and payable on
such Securities for principal (and premium, if any) and interest, respectively.

SECTION 507. Limitation on Suits.

         No Holder of any Security of any series shall have any right to
institute any proceeding, judicial or otherwise, with respect to this Indenture,
or for the appointment of a receiver or trustee, or for any other remedy
hereunder, unless

                  (1) such Holder has previously given written notice to the
         Trustee of a continuing Event of Default with respect to the Securities
         of that series;

                  (2) the Holders of not less than twenty-five percent (25%) in
         principal amount of the Outstanding Securities of that series shall
         have made written request to the Trustee to institute proceedings in
         respect of such Event of Default in its own name as Trustee hereunder;

                  (3) such Holder or Holders have offered to the Trustee
         reasonable indemnity against the costs, expenses and liabilities to be
         incurred in compliance with such request;

                  (4) the Trustee for sixty (60) days after its receipt of such
         notice, request and offer of indemnity has failed to institute any such
         proceeding; and

                  (5) no direction inconsistent with such written request has
         been given to the Trustee during such sixty (60) day period by the
         Holders of a majority in principal amount of the Outstanding Securities
         of that series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holder or Holders of any other series, or to obtain or to seek to obtain
priority or preference over any other of such Holders or to enforce any right
under this Indenture, except in the manner herein provided and for the equal and
ratable benefit of all of such Holders.

                                     - 35 -
<PAGE>   42

SECTION 508. Unconditional Right of Holders to Receive Principal, Premium and
Interest.

         Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of (and premium, if any) and (subject to
Section 307) interest on such Security on the Stated Maturity or Maturities
expressed in such Security (or, in the case of redemption, on the Redemption
Date), and to convert such Security in accordance with Article Fifteen, and to
institute suit for the enforcement of any such payment, and such rights shall
not be impaired without the consent of such Holder.

SECTION 509. Restoration of Rights and Remedies.

         If the Trustee or any Holder has instituted any proceeding to enforce
any right or remedy under this Indenture and such proceeding has been
discontinued or abandoned for any reason, or has been determined adversely to
the Trustee or to such Holder, then and in every such case, subject to any
determination in such proceeding, the Company, the Trustee, and the Holders
shall be restored severally and respectively to their former positions hereunder
and thereafter all rights and remedies of the Trustee and the Holders shall
continue as though no such proceeding had been instituted.

SECTION 510. Rights and Remedies.

         Except as otherwise provided with respect to the replacement or payment
of mutilated, destroyed, lost or stolen Securities in the last paragraph of
Section 306, no right or remedy herein conferred upon or reserved to the Trustee
or to the Holders is intended to be exclusive of any other right or remedy, and
every right and remedy shall, to the extent permitted by law, be cumulative and
in addition to every other right and remedy given hereunder or now or hereafter
existing at law or in equity or otherwise. The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

SECTION 511. Delay or Omission Not Waiver.

         No delay or omission of the Trustee or of any Holder of any Security to
exercise any right or remedy accruing upon any Event of Default shall impair any
such right or remedy or constitute a waiver of such Event of Default or any
acquiescence therein. Every right and remedy given by this Article or by law to
the Trustee or to the Holders may be exercised from time to time, and as often
as may be deemed expedient, by the Trustee or by the Holders, as the case may
be.

SECTION 512. Control by Holders.

         The Holders of a majority in principal amount of the Outstanding
Securities of any series shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee, with
respect to the Securities of such series, provided that

                  (1) such direction shall not be in conflict with any rule of
         law or with this Indenture,

                                     - 36 -
<PAGE>   43

                  (2) the Trustee may take any other action deemed proper by the
         Trustee which is not inconsistent with such direction,

                  (3) such direction is not unduly prejudicial to the rights of
         other Holders, and

                  (4) such direction would not involve the Trustee in personal
         liability.

SECTION 513. Waiver of Past Defaults.

         The Holders of not less than a majority in principal amount of the
Outstanding Securities of any series may on behalf of the Holders of all the
Securities of such series waive any past default hereunder with respect to such
series and its consequences, except a default:

                  (1) in the payment of the principal of (or premium, if any) or
         interest on any Security of such series, or

                  (2) in respect of a covenant or provision hereof which under
         Article Nine cannot be modified or amended without the consent of the
         Holder of each Outstanding Security of such series affected.

         Upon any such waiver, such default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such wavier shall extend to any subsequent or
other default or impair any right consequent thereon.

SECTION 514. Undertaking for Costs.

         All parties to this Indenture agree, and each Holder of any Security of
his acceptance thereof shall be deemed to have agreed, that any court may in its
discretion require, in any suit for the enforcement of any right or remedy under
this Indenture, or in any suit against the Trustee for any action taken,
suffered or omitted by it as Trustee, the filing by any party litigant in such
suit of an undertaking to pay the costs of such suit, and such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section shall not apply to any suit instituted by the
Company, to any suit instituted by the Trustees, to any suit instituted by any
Holder, or group of Holders, holding in the aggregate more than ten percent
(10%) in principal amount of the Outstanding Securities of any series, or to any
suit instituted by any Holder for the enforcement of the payment of the
principal of (or premium, if any) or interest on any Security on or after the
State Maturity or Maturities expressed in such Security (or, in the case of
redemption, on or after the Redemption Date).

SECTION 515. Waiver of Stay or Extension Laws.

         The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, or plead, or in any manner whatsoever claim
or take the benefit or advantage of, any stay or extension law wherever enacted,
now or at any time hereafter in force, which may affect the covenants or the
performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such law
and

                                     - 37 -
<PAGE>   44

covenants that it will not hinder, delay or impede the exercise of any power
herein granted to the Trustee, but will suffer and permit the exercise of every
such power as though no such law had been enacted.

                                   ARTICLE SIX
                                   THE TRUSTEE

SECTION 601. Certain Duties and Responsibilities.

         (a) Except during the continuance of an Event of Default with respect
to Securities of any series,

                  (1) the Trustee undertakes to perform, with respect to
         Securities of such series, such duties and only such duties as are
         specifically set forth in this Indenture, and no implied covenants or
         obligations shall be read into this Indenture against the Trustee; and

                  (2) in the absence of bad faith on its part, the Trustee may,
         with respect to Securities of such series, conclusively rely, as to the
         truth of the statements and correctness of the opinions expressed
         therein, upon certificates or opinions furnished to the Trustee and
         conforming to the requirements of this Indenture; but in the case of
         any such certificates or opinions which by any provision hereof are
         specifically required to be furnished to the Trustee, the Trustee shall
         be under a duty to examine the same to determine whether or not they
         conform to the requirements of this Indenture.

         (b) In case an Event of Default with respect to Securities of any
series has occurred and is continuing, the Trustee shall exercise, with respect
to Securities of such series, such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in their exercise, as a
prudent man would exercise or use under the circumstances in the conduct of his
own affairs.

         (c) No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent failure
to act, or its own willful misconduct, except that

                  (1) this Subsection (c) shall not be construed to limit the
         effect of Subsection (a) of this Section;

                  (2) the Trustee shall not be liable for any error of judgment
         made in good faith by a Responsible Officer, unless it shall be proved
         that the Trustee was negligent in ascertaining the pertinent facts;

                  (3) the Trustee shall not be liable with respect to any action
         taken or omitted to be taken by it in good faith in accordance with the
         direction of the Holders of the majority in principal amount of the
         Outstanding Securities of any series, determined as a provided in
         Section 512, relating to the time, method and place of conducting any
         proceeding for any remedy available to the Trustee, or exercising any
         trust or power

                                     - 38 -
<PAGE>   45

         conferred upon the Trustee, under this Indenture with respect to the
         Securities of such series; and

                  (4) no provision of this Indenture shall require the Trustee
         to expend or risk its own funds or otherwise incur any financial
         liability in the performance of any of its duties hereunder, or in the
         exercise of any of its rights or powers, if it shall have reasonable
         grounds for believing that repayment of such funds or adequate
         indemnity against such risk or liability is not reasonably assured to
         it.

         (d) Whether or not therein expressly so provided, every provision of
this Indenture relating to the conduct or affecting the liability of or
affording protection to the Trustee shall be subject to the provisions of this
Section.

SECTION 602. Notice of Defaults.

         Within ninety (90) days after the occurrence of any default hereunder
with respect to the Securities of any series, the Trustee shall transmit by mail
to all Holders of Securities of such series, as their names and addresses appear
in the Security Register, notice of such default hereunder known to the Trustee,
unless such default shall have been cured or waived; provided, however, that,
except in the case of a default in the payment of the principal of (or premium,
if any) or interest on any Security of such series or in the payment of any
sinking fund installment with respect to Securities of such series, the Trustee
shall be protected in withholding such notice if and so long as the board of
directors, the executive committee or a trust committee of directors or
Responsible Officers of the Trustee in good faith determine that the withholding
of such notice is in the interest of the Holders of Securities of such series;
and provided, further, that in the case of any default of the character
specified in Section 501(4) with respect to Securities of such series, no such
notice to Holders shall be given until at least thirty (30) days after the
occurrence thereof. For the purpose of this Section, the term "default" means
any event which is, or after notice or lapse of time or both would become, an
Event of Default with respect to Securities of such series.

SECTION 603. Certain Rights of Trustee.

         Subject to the provisions of Section 601:

                  (a) the Trustee may rely and shall be protected in acting or
         refraining from acting upon any resolution, Officers' Certificate,
         other certificate, statement, instrument, opinion, report, notice,
         request, direction, consent, order, bond, debenture, note, other
         evidence of indebtedness or other paper or document believed by it to
         be genuine and to have been signed or presented by the proper party or
         parties;

                  (b) any request or direction of the Company mentioned herein
         shall be sufficiently evidenced by a Company Request or Company Order
         and any resolution of the Board of Directors shall be sufficiently
         evidenced by a Board Resolution;

                  (c) whenever in the administration of this Indenture the
         Trustee shall deem it desirable that a matter be proved or established
         prior to taking, suffering or omitting any action hereunder, the
         Trustee (unless other evidence be herein specifically prescribed)

                                     - 39 -
<PAGE>   46

         may, in the absence of bad faith on its part, rely upon an Officers'
         Certificate or Opinion of Counsel;

                  (d) the Trustee may consult with counsel and the written
         advice of such counsel or any Opinion of Counsel shall be full and
         complete authorization and protection in respect of any action taken,
         suffered or omitted by it hereunder in good faith and in reliance
         thereon;

                  (e) the Trustee shall be under no obligation to exercise any
         of the rights or powers vested in it by this Indenture at the request
         or direction of any of the Holders pursuant to this Indenture, unless
         such Holders shall have offered to the Trustee reasonable security or
         indemnity against the costs, expenses and liabilities which might be
         incurred by it in compliance with such request or direction;

                  (f) the Trustee shall not be bound to make any investigation
         into the facts or matters stated in any resolution, certificate,
         statement, instrument, opinion, report, notice, request, direction,
         consent, order, bond, debenture, note, other evidence of indebtedness
         or other paper or document, but the Trustee, in its discretion, may
         make such further inquiry or investigation into such facts or matters
         as it may see fit, and, if the Trustee shall determine to make such
         further inquiry or investigation, it shall be entitled to examine the
         books, records and premises of the Company, personally or by agent or
         attorney; and

                  (g) the Trustee may execute any of the trusts or powers
         hereunder or perform any duties hereunder either directly or by or
         through agents or attorneys, and the Trustee shall not be responsible
         for any misconduct or negligence on the part of any agent or attorney
         appointed with due care by it hereunder.

SECTION 604. Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, shall be taken as the statements of
the Company, and the Trustee or any Authenticating Agent assumes no
responsibility for their correctness. The Trustee makes no representations as to
the validity of sufficiency of this Indenture or of the Securities. Neither the
Trustee nor any Authenticating Agent shall be accountable for the use or
application by the Company of Securities or the proceeds thereof.

SECTION 605. May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to Section
608 and 613, may otherwise deal with the Company with the same rights it would
have if it were not Trustee, Authenticating Agent, Paying Agent, Security
Registrar or such other agent.

                                     - 40 -
<PAGE>   47

SECTION 606. Money Held in Trust.

         Money held by the Trustee in trust hereunder need not be segregated
from other funds except to the extent required by law. The Trustee shall be
under no liability for interest on any money received by it hereunder except as
otherwise agreed with the Company.

SECTION 607. Compensation and Reimbursement.

         The Company agrees

                  (1) to pay to the Trustee from time to time reasonable
         compensation for all services rendered by it hereunder (which
         compensation shall not be limited by any provision of law in regard to
         the compensation of a trustee of any express trust);

                  (2) except as otherwise expressly provided herein, to
         reimburse the Trustee upon its request for all reasonable expenses,
         disbursements and advances incurred or made by the Trustee in
         accordance with any provision of this Indenture (including the
         reasonable compensation and the expenses and disbursements of its
         agents and counsel), except any such expense, disbursement or advance
         as may be attributable to its negligence or bad faith; and

                  (3) to indemnify the Trustee for, and to hold it harmless
         against, any loss, liability or expense incurred without negligence or
         bad faith on its part, arising out of or in connection with the
         acceptance or administration of the trust or trusts hereunder,
         including the costs and expenses of defending itself against any claim
         or liability in connection with the exercise or performance of any of
         its powers or duties hereunder.

         As security for the performance of the obligations of the Company under
this Section, the Trustee shall have a lien prior to the Securities upon all
property and funds held or collected by the Trustee as such, except for funds
held in trust for the benefit of the Holders of Securities.

SECTION 608. Disqualification; Conflicting Interests.

         If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent and in the manner provided by, and subject to
the provisions of, the Trust Indenture Act and this Indenture.

SECTION 609. Corporate Trustee Required; Eligibility.

         There shall at all times be a Trustee hereunder which shall be a
corporation which satisfies the requirements of Section 310(a) of the Trust
Indenture Act and which has a combined capital and surplus of not less than
$50,000,000. If such corporation publishes reports of condition at least
annually, pursuant to law or to the requirements of a supervising or examining
authority, then for the purposes of this Section, the combined capital and
surplus of such corporation shall be deemed to be its combined capital and
surplus as set forth in its most recent report of condition so published. If at
any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section, it shall resign immediately in the manner and with
the effect hereinafter specified in this Article.

                                     - 41 -
<PAGE>   48

SECTION 610. Resignation and Removal; Appointment of Successor.

         (a) No resignation or removal of the Trustee and no appointment of a
successor Trustee pursuant to this Article shall become effective until the
acceptance of appointment by the successor Trustee in accordance with the
applicable requirements of Section 611.

         (b) The Trustee may resign at any time with respect to the Securities
of one or more series by giving written notice thereof to the Company. If the
instrument of acceptance by a successor Trustee required by Section 611 shall
not have been delivered to the Trustee within thirty (30) days after the giving
of such notice of resignation, the resigning Trustee may petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to such series.

         (c) The Trustee may be removed at any time with respect to the
Securities of any series by Act of the Holders of a majority in principal amount
of the Outstanding Securities of such series, delivered to the Trustee and to
the Company.

         (d) If at any time

                  (1) the Trustee shall fail to comply with Section 608 after
         written request therefor by the Company or by any Holder who has been a
         bona fide Holder of a Security for at least six months, or

                  (2) the Trustee shall cease to be eligible under Section 609
         and shall fail to resign after written request therefor by the Company
         or by any such Holder, or

                  (3) the Trustee shall become incapable of acting or shall be
         adjudged a bankrupt or insolvent or a receiver of the Trustee or of its
         property shall be appointed or any public officer shall take charge or
         control of the Trustee or of its property or affairs for the purpose of
         rehabilitation, conservation or liquidation,

then, in any such case, (i) the Company by a Board Resolution may remove the
Trustee with respect to all Securities, or (ii) subject to Section 514, any
Holder who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the removal of the Trustee with respect to all
Securities and the appointment of a successor Trustee or Trustees.

         (e) If the Trustee shall resign, be removed or become incapable of
acting, or if a vacancy shall occur in the office of Trustee for any cause, with
respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those series (it being understood that any such
successor Trustee may be appointed with respect to the Securities of one or more
or all of such series and that at any time there shall be only one Trustee with
respect to the Securities of any particular series) and shall comply with the
applicable requirements of Section 611. If, within one year after such
resignation, removal, or incapability, or the occurrence of such vacancy, a
successor Trustee with respect to the Securities of any series shall be
appointed by Act of the Holders of a majority in principal amount of the
Outstanding Securities of such series delivered to the Company and the retiring
Trustee, the successor Trustee so appointed shall, forthwith upon

                                     - 42 -
<PAGE>   49

its acceptance of such appointment in accordance with the applicable
requirements of Section 611, become the successor Trustee with respect to the
Securities of such series and to that extent supersede the successor Trustee
appointed by the Company. If no successor Trustee with respect to the Securities
of any series shall have been so appointed by the Company or the Holders and
accepted appointment in the manner required by Section 611, any Holder who has
been a bona fide Holder of a Security of such series for at least six months
may, on behalf of himself and all others similarly situated, petition any court
of competent jurisdiction for the appointment of a successor Trustee with
respect to the Securities of such series.

         (f) The Company shall give notice of each resignation and each removal
of the Trustee with respect to the Securities of any series and each appointment
of a successor Trustee with respect to the Securities of any series by mailing
written notice of such event by first-class mail, postage prepaid, to all
Holders of Securities of such series as their names and addresses appear in the
Security Register. Each notice shall include the name of the successor Trustee
with respect to the Securities of such series and the address of its Corporate
Trust Office.

SECTION 611. Acceptance of Appointment by Successor.

         (a) In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Trustee an
instrument accepting such appointment, and thereupon the resignation or removal
of the retiring Trustee shall become effective and such successor Trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, trusts and duties of the retiring Trustee; but, on the request
of the Company or the successor Trustee, such retiring Trustee shall, upon
payment of its charges, execute and deliver an instrument transferring to such
successor Trustee all property and money held by such retiring Trustee
hereunder, subject nevertheless to its lien, if any, provided for in Section
607.

         (b) In case of the appointment hereunder of a successor Trustee with
respect to the Securities of one or more (but not all) series, the Company, the
retiring Trustee and each successor Trustee with respect to the Securities of
one or more series shall execute and deliver an indenture supplemental hereto
wherein each successor Trustee shall accept such appointment and which (1) shall
contain such provisions as shall be necessary or desirable to transfer, and
confirm to, and to vest in, each successor Trustee all the rights, powers,
trusts and duties of the retiring Trustee with respect to the Securities of that
or those series to which the appointment of such successor Trustee relates, (2)
if the retiring Trustee is not retiring with respect to all Securities, shall
contain such provisions as shall be deemed necessary or desirable to confirm
that all the rights, powers, trusts and duties of the retiring Trustee with
respect to the Securities of that or those as to which the retiring Trustee is
not retiring shall continue to be vested in the retiring Trustee, and (3) shall
add to or change any of the provisions of this Indenture as shall be necessary
to provide for or facilitate the administration of the trusts hereunder by more
than one Trustee, it being understood that nothing herein or in such
supplemental indenture shall constitute such Trustees co-trustees of the same
trust, that each such Trustee shall be trustee of a trust or trusts hereunder
separate and apart from any trust or trusts hereunder administered by any other
such Trustee and that no Trustee shall be responsible for any act or failure to
act on the part of any other Trustee hereunder; and upon the execution and
delivery of such supplemental indenture the resignation or removal of the
retiring Trustee shall become effective to the extent

                                     - 43 -
<PAGE>   50

provided therein, such retiring Trustee shall with respect to the Securities of
that or those series to which the appointment of such successor Trustee related
have no further responsibility for the exercise of rights and powers or for the
performance of the duties and obligations vested in the Trustee under this
Indenture, and each such successor Trustee, without any further act, deed or
conveyance, shall become vested with all the rights, powers, trusts and duties
of the retiring Trustee with respect to the Securities of that or those series
to which the appointment of such successor Trustee relates; but, on request of
the Company or any successor Trustee, such retiring Trustee shall duly assign,
transfer and deliver to such successor Trustee, to the extent contemplated by
such supplemental indenture, the property and money held by such retiring
Trustee hereunder with respect to the Securities of that or those series to
which the appointment of such successor Trustee relates.

         (c) Upon request of any such successor Trustee, the Company shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Trustee all such rights, powers and trusts referred
to in paragraph (a) or (b) of this Section, as the case may be.

         (d) No successor Trustee shall accept its appointment unless at the
time of such acceptance such successor Trustee shall be qualified and eligible
under this Article.

SECTION 612. Merger, Conversion, Consolidation or Succession to Business.

         Any corporation into which the Trustee may be merged or converted or
with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of the Trustee, shall be the successor of the Trustee hereunder, provided such
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities shall have been authenticated,
but not delivered, by the Trustee then in office, any successor by merger,
conversion or consolidation to such authenticating Trustee may adopt such
authentication and deliver the Securities so authenticated with the same effect
as if such successor Trustee had itself authenticated such Securities.

SECTION 613. Preferential Collection of Claims Against Company.

         If the Trustee shall be or shall become a creditor, directly or
indirectly, secured or unsecured, of the Company or of any other obligor on the
Securities, the Trustee shall be subject to the provisions of the Trust
Indenture Act regarding the collection of claims against the Company or any such
other obligor on the Securities.

SECTION 614. Appointment of Authenticating Agent.

         At any time when any of the Securities remain Outstanding, the Company
may appoint an Authenticating Agent or Agents with respect to one or more series
of Securities which shall be authorized to authenticate Securities of such
series issued upon exchange, registration of transfer or partial redemption
thereof and Securities so authenticated shall be entitled to the benefits of
this Indenture and shall be valid and obligatory for all purposes as if
authenticated by the Trustee hereunder. Wherever reference is made in this
Indenture to the authentication and

                                     - 44 -
<PAGE>   51

delivery of Securities by the Trustee or the Trustee's certificate of
authentication, such reference shall be deemed to include authentication and
delivery on behalf of the Trustee by an Authenticating Agent and a certificate
of authentication executed on behalf of the Trustee by an Authenticating Agent.
Each Authenticating Agent shall be acceptable to the Trustee and shall at all
times be a corporation organized and doing business under the laws of the United
States of America, any State thereof or the District of Columbia, authorized
under such laws to act as Authenticating Agent, having a combined capital and
surplus of not less than $50,000,000 and subject to supervision or examination
by Federal or State authority. If such Authenticating Agent publishes reports of
condition at least annually, pursuant to law or to the requirements of said
supervising or examining authority, then for the purposes of this Section, the
combined capital and surplus of such Authenticating Agent shall be deemed to be
its combined capital and surplus as set forth in its most recent report of
condition so published. If at any time an Authenticating Agent shall cease to be
eligible in accordance with the provisions of this Section, such Authenticating
Agent shall resign immediately in the manner and with the effect specified in
this Section.

         Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
shall be a party, or any corporation succeeding to the corporate agency or
corporate trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

         An Authenticating Agent may resign at any time by giving written notice
thereof to the Trustee and to the Company. The Company may at any time terminate
the agency of an Authenticating Agent by giving written notice thereof to such
Authenticating Agent and to the Trustee. Upon receiving such notice of
resignation or upon such termination, or in case at any time such Authenticating
Agent shall cease to be eligible in accordance with the provisions of this
Section, the Company may appoint a successor Authenticating Agent which shall be
acceptable to the Trustee and shall mail written notice of such appointment by
first-class mail, postage prepaid, to all Holders of Securities of the series
with respect to which such Authenticating Agent will serve, as their names and
addresses appear in the Security Register. Any successor Authenticating Agent
upon acceptance of its appointment hereunder shall become vested with all the
rights, powers and duties of its predecessor hereunder, with like effect as if
originally named as an Authenticating Agent. No successor Authenticating Agent
shall be appointed unless eligible under the provisions of this Section.

         The Company agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

         The provisions of Section 308, 604 and 605 shall be applicable to each
Authenticating Agent.

                                     - 45 -
<PAGE>   52

         Pursuant to each appointment made under this Section, the Securities of
each series covered by such appointment may have endorsed thereon, in addition
to the Trustee's certificate of authentication, an alternative certificate of
authentication in the following form:

         This is one of the Securities of the series designed therein referred
to in the within mentioned Indenture.

                                       ----------------------,
                                       As Trustee

                                       By:
                                          --------------------------------
                                          As Authenticating Agent

                                       By:
                                          --------------------------------
                                          Authorized Officer

                                     - 46 -
<PAGE>   53

                                 ARTICLE SEVEN
               LISTS OF HOLDERS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701. Company to Furnish Trustee Names and Addresses of Holders.

         The Company will furnish or cause to be furnished to the Trustee

         (a) semi-annually, not more than fifteen (15) days after each Regular
Record Date, in each year, a list, in such form as the Trustee may reasonably
require, of the names and addresses of the Holders as of such Regular Record
Date, and

         (b) at such times as the Trustee may request in writing, within thirty
(30) days after the receipt by the Company of any such request, a list of
similar form and content as of a date not more than fifteen (15) days prior to
the time such list is furnished.

SECTION 702. Preservation of Information; Communications to Holders.

         (a) The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 701. The Trustee may
destroy any list furnished to it as provided in Section 701 upon receipt of a
new list so furnished.

         (b) The rights of Holders to communicate with other Holders with
respect to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

         (c) Every Holder of Securities, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any agent of either of them shall be held accountable by reason of the
disclosure of any such information as to the names and addresses of the Holders
made pursuant to the Trust Indenture Act.

                                     - 47 -
<PAGE>   54

SECTION 703. Reports by Trustee.

         (a) The Trustee shall transmit by mail to all Holders all such reports
concerning the Trustee and its actions under this Indenture as may be required
pursuant to the Trust Indenture Act at the times and in the manner provided
pursuant thereto including, without limitation, reports that comply with Section
313(a) of the Trust Indenture Act.

         (b) A copy of each such report shall, at the time of such transmission
to Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Company. The Company
will notify the Trustee when any Securities are listed on any stock exchange.

SECTION 704. Reports by Company.

         The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act;
provided that any such information, documents or reports required to be filed
with the Commission pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934 shall be filed with the Trustee within fifteen (15) days after the
same is so required to be filed with the Commission.

                                 ARTICLE EIGHT
              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE

SECTION 801. Company May Consolidate, Etc., Only on Certain Terms.

         The Company shall not consolidate with or merge into any other
corporation or sell, convey, exchange, transfer or lease its properties and
assets substantially as an entirety to any Person, unless:

                  (1) the corporation formed by such consolidation or into which
         the Company is merged or the Person which acquires by conveyance or
         transfer, or which leases, the properties and assets of the Company
         substantially as an entirety shall be a corporation organized and
         existing under the laws of the United States of America, any State
         thereof or the District of Columbia and shall expressly assume, by an
         indenture supplemental hereto, executed and delivered to the Trustee,
         in form satisfactory to the Trustee, the due and punctual payment of
         the principal of (and premium, if any) and interest on all the
         Securities and the performance of every covenant of this Indenture on
         the part of the Company to be performed or observed;

                  (2) immediately after giving effect to such transaction and
         treating any indebtedness which becomes an obligation of the Company or
         a Subsidiary as a result of such transaction as having been incurred by
         the Company or such Subsidiary at the time of such transaction, no
         Event of Default, and no event which, after notice or lapse of time or
         both, would become an Event of Default, shall have happened and be
         continuing; and

                  (3) the Company has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that such
         consolidation, merger, conveyance, transfer or

                                     - 48 -
<PAGE>   55

         lease and supplemental indenture comply with this Article and that all
         conditions precedent herein provided for relating to such transaction
         have been complied with.

SECTION 802. Successor Corporation Substituted.

         Upon any consolidation by the Company with or merger by the Company
into any other corporation or any conveyance, transfer or lease of the
properties and assets of the Company substantially as an entirety in accordance
with Section 801, the successor corporation formed by such consolidation or into
which the Company is merged or to which such conveyance, transfer or lease is
made shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the effect as if such successor
corporation had been named as the Company herein, and thereafter, except in the
case of a lease, the predecessor corporation shall be relieved of all
obligations and covenants under this Indenture and the Securities.

SECTION 803. Assumption by Subsidiary of Company's Obligations.

         A Subsidiary may assume the obligations of the Company for the due and
punctual payment of the principal of (and premium, if any) and interest on the
Securities and the performance of the Company's other obligations under this
Indenture and the Securities (except its obligations under Section 1004, which,
as contemplated by Subsection (2) below, shall continue to bind the Company), to
be performed or observed, provided that:

                  (1) such Subsidiary shall expressly assume such obligations by
         an indenture supplemental hereto, executed and delivered to the
         Trustee;

                  (2) the Company shall guarantee the obligations of such
         Subsidiary under the Securities and this Indenture, which guarantee
         shall also include an undertaking by the Company to continue to comply
         with the covenants set forth in Section 1004;

                  (3) in addition to assuming obligations under the Securities
         and this Indenture, such Subsidiary shall agree to indemnify the Holder
         of each Security against (a) any tax, assessment or governmental charge
         imposed as a result of or relating to the act of such assumption and
         (b) costs or expenses incurred directly in connection with the act of
         assumption;

                  (4) immediately after giving effect to such transaction, no
         Event of Default, and no event which, after notice or lapse of time or
         both, would become an Event of Default, shall have happened and be
         continuing;

                  (5) the Company shall deliver to the Trustee an Officers'
         Certificate and an Opinion of Counsel, to the effect that (a) such
         assumption, (b) such guarantee and (c) such supplemental indenture
         comply with this Article and that all conditions precedent herein
         provided for relating to such assumption have been complied with and
         such supplemental indenture and guarantee by the Company have been duly
         authorized and delivered by the Company, and each constitutes a valid
         and legally binding instrument of the Company, enforceable in
         accordance with its terms subject to bankruptcy, insolvency,
         reorganization, moratorium or other laws relating to or affecting the
         enforcement of

                                     - 49 -
<PAGE>   56

         creditors' rights generally, and subject, as to enforcement, to general
         principles of equity, and any other customary exceptions which such
         counsel states do not materially prejudice the rights of the Holders
         under this Indenture and the Securities; and

                  (6) such Subsidiary shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel to the effect that (a)
         such Subsidiary has obtained all governmental and regulatory approvals
         and consents necessary for its assumption of liability as principal
         debtor in respect of the Securities in place of the Company; (b) such
         approvals and consents are at the time of assumption in full force and
         effect; and (c) such supplemental indenture has been duly authorized
         and delivered by such Subsidiary, constitutes a valid and legally
         binding instrument of such Subsidiary, enforceable in accordance with
         its terms subject to bankruptcy, insolvency, reorganization, moratorium
         or other laws relating to or affecting the enforcement of creditors'
         rights generally and subject, as to enforcement, to general principles
         of equity, and any other customary exceptions which such counsel states
         do not materially prejudice the rights of the Holders under this
         Indenture and the Securities.

         Upon compliance with, and subject to, the requirements set forth above
in this Section 803, such Subsidiary shall succeed to and be substituted for the
Company, with the same effect as if it had been named as the Company herein and
in the Securities in place of the Company; and the Company shall thereupon be
relieved of any further obligation or liability hereunder or upon the Securities
(except as provided in Subsection (2) above and in its guarantee as aforesaid).
Such Subsidiary may cause to be signed, and may issue in its own name, any or
all of the Securities issuable hereunder which theretofore shall not have been
signed by the Company and delivered to the Trustee; and, upon the order of such
Subsidiary, instead of the Company, and subject to all the terms, conditions and
limitations in this Indenture prescribed, the Trustee shall authenticate and
shall deliver any Securities which previously shall have been signed and
delivered as provided herein, with the guarantee of the Company endorsed
thereon, and any Securities which such Subsidiary thereafter shall cause to be
signed and delivered, with the guarantee of the Company endorsed thereon, to the
Trustee for that purpose. All the Securities so issued shall in all respects
have the same legal rank and benefit under this Indenture as the Securities
theretofore or thereafter issued in accordance with the terms of this Indenture
as though all of such Securities had been issued at the date thereof. In the
event a Subsidiary shall assume the obligations of the Company in accordance
with this Section 803, such changes in phraseology and form (but not in
substance) may be made in the Securities thereafter to be issued as may be
appropriate.

                                  ARTICLE NINE
                             SUPPLEMENTAL INDENTURES

SECTION 901. Supplemental Indentures Without Consent of Holders.

         Without the consent of any Holders, the Company, when authorized by a
Board Resolution, and the Trustee, at any time and from time to time, may enter
into one or more indentures supplemental hereto, in form satisfactory to the
Trustee, for any of the following purposes:

                                     - 50 -
<PAGE>   57

                  (1) to evidence the succession of another Person to the
         Company and the assumption by any such successor of the covenants of
         the Company herein and in the Securities or to evidence the assumption
         by a Subsidiary of the Company's obligations in accordance with Section
         803; or

                  (2) to add to the covenants of the Company for the benefit of
         the Holders of all or any series of Securities (and if such covenants
         are to be for the benefit of less than all series of Securities,
         stating that such covenants are expressly being included solely for the
         benefit of such series) or to surrender any right or power herein
         conferred upon the Company; or

                  (3) to add any additional Events of Default; or

                  (4) to add to or change any of the provisions of this
         Indenture to such extent as shall be necessary to permit or facilitate
         the issuance of Securities in bearer form, registrable or not
         registrable as to principal, and with or without interest coupons; or

                  (5) to add to, change or eliminate any of the provisions of
         this Indenture in respect of one or more series of Securities, provided
         that any such addition, change or elimination (i) shall neither (A)
         apply to any Security of any series created prior to the execution of
         such supplemental indenture and entitled to the benefit of such
         provision nor (B) modify the rights of the Holder of any such Security
         with respect to such provision or (ii) shall become effective only when
         there is no such Security Outstanding; or

                  (6) to secure the Securities; or

                  (7) to make provision with respect to the conversion rights of
         Holders pursuant to Section 1511; or

                  (8) to establish the form or terms of Securities of any series
         as permitted by Section 201 and 301; or

                  (9) to evidence and provide for the acceptance of appointment
         hereunder by a successor Trustee with respect to the Securities of one
         or more series and to add to or change any of the provisions of this
         Indenture as shall be necessary to provide for or facilitate the
         administration of the trusts hereunder by more than one Trustee,
         pursuant to the requirements of Section 611(b); and

                  (10) to cure any ambiguity, to correct or supplement any
         provision contained herein or in any supplemental indenture which may
         be inconsistent with any other provision herein or in any supplemental
         indenture, or to make any other provisions with respect to matters or
         questions arising under this Indenture or under any supplemental
         indenture, provided such action shall not adversely affect the
         interests of the Holders of Securities of any series in any material
         respect.

                                     - 51 -
<PAGE>   58

SECTION 902. Supplemental Indentures With Consent of Holders.

         With the consent of the Holders of not less than a majority in
principal amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized by a Board Resolution, and the Trustee may
enter into an indenture or indentures supplemental hereto for the purpose of
adding any provisions to or changing in any manner or eliminating any of the
provisions of this Indenture or of modifying in any manner the rights of the
Holders of Securities of such series under this Indenture; provided, however,
that no such supplemental indenture shall, without the consent of the Holder of
each Outstanding Security affected thereby,

                  (1) change the Stated Maturity of the principal of, or any
         installment of principal of or interest on, any Security, or reduce the
         principal amount thereof or the rate of interest thereon or any premium
         payable upon the redemption thereof, or reduce the amount of the
         principal of an Original Issue Discount Security that would be due and
         payable upon a declaration of acceleration of the Maturity thereof
         pursuant to Section 502, or change any Place of Payment where, or the
         coin or currency in which, any Security or any premium or the interest
         thereon is payable, or impair the right to institute suit for the
         enforcement of any such payment on or after the Stated Maturity thereof
         (or, in the case of redemption, on or after the Redemption Date), or

                  (2) reduce the percentage in principal amount of the
         Outstanding Securities of any series, the consent of whose Holders is
         required for any such supplemental indenture, or the consent of whose
         Holders is required for any waiver (of compliance with certain
         provisions of this Indenture or certain defaults hereunder and their
         consequences) provided for in this Indenture, or

                  (3) modify the conversion privilege with respect to any
         Security, except as may be permitted by Section 1511, in a manner
         adverse to the Holder thereof, or

                  (4) modify the provisions of this Indenture with respect to
         the subordination of any Security in a manner adverse to the Holder
         thereof, or

                  (5) modify any of the provisions of this Section, Section 513
         or Section 1007, except to increase any such percentage or to provide
         that certain other provisions of this Indenture cannot be modified or
         waived without the consent of the Holder of each Outstanding Security
         affected thereby; provided, however, that this clause shall not be
         deemed to require the consent of any Holder with respect to changes in
         the references to "the Trustee" and concomitant changes in Section 1007
         or the deletion of this provision, in accordance with the requirements
         of Section 611(b) and 901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely for the
benefit of one or more particular series of Securities, or which modifies the
rights of the Holders of Securities of such series with respect to such covenant
or other provision, shall be deemed not to affect the rights under this
Indenture of the Holders of Securities of any other series.

                                     - 52 -
<PAGE>   59

         It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act shall approve the substance thereof.

SECTION 903. Execution of Supplemental Indentures.

         In executing, or accepting the additional trusts created by, or any
supplemental indenture permitted by this Article or the modification thereby of
the trusts created by this Indenture, the Trustee shall be entitled to receive,
and (subject to Section 601) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental indenture is
authorized or permitted by this indenture. The Trustee may, but shall not be
obligated to, enter into any such supplemental Indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

SECTION 904. Effect of Supplemental Indentures.

         Upon the execution of any supplemental indenture under this Article,
this Indenture shall be modified in accordance therewith, and such supplemental
indenture shall form a part of this Indenture for all purposes; and every Holder
of Securities theretofore or thereafter authenticated and delivered hereunder
shall be bound thereby.

SECTION 905. Conformity With Trust Indenture Act.

         Every supplemental indenture executed pursuant to this Article shall
conform to the requirements of the Trust Indenture Act as then in effect.

SECTION 906. Reference in Securities to Supplemental Indentures.

         Securities of any series authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article may, and shall
if required by the Trustee, bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture. If the Company shall
so determine, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

                                  ARTICLE TEN
                                    COVENANTS

SECTION 1001. Payment of Principal, Premium and Interest.

         The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of (and premium,
if any) and interest on the Securities of that series in accordance with the
terms of the Securities and this Indenture.

                                     - 53 -
<PAGE>   60

SECTION 1002. Maintenance of Office or Agency.

         The Company will maintain in each Place of Payment for any series of
Securities an office or agency where Securities of that series may be presented
or surrendered for payment, where Securities of that series may be surrendered
for registration of transfer or exchange, where conversion notices, certificates
and other items required to be delivered to effect conversion may be delivered
and where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served. The Company will
give prompt written notice to the Trustee of the location, and any change in the
location, of such office or agency. If at any time the Company shall fail to
maintain any such required office or agency or shall fail to furnish the Trustee
with the address thereof, such presentations, surrenders, conversions, notices
and demands may be made or served at the Corporate Trust Office of the Trustee,
and the Company hereby appoints the Trustee as its agent to receive all such
presentations, surrenders, conversions, notices and demands.

         The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all such purposes, including conversion, and may from
time to time rescind such designations; provided, however, that no such
designation or rescission shall in any manner relieve the Company of its
obligation to maintain an office or agency in each Place of Payment for
Securities of any series for such purposes. The Company will give prompt written
notice to the Trustee of any such designations or rescission and of any change
in the location of any such other office or agency. The Company hereby
designates as a Place of Payment for each series of Securities, the Borough of
Manhattan, The City of New York, and appoints ____________, at its principal
office, as Paying Agent for the payment of the principal of (premium, if any) or
interest on each series of Securities and as Conversion Agent for the conversion
of any Securities of any series.

SECTION 1003. Money for Securities Payments to be Held in Trust.

         If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of (and premium, if any) or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal (and premium, if any) or interest
so becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

         Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, prior to each due date of the principal of (and
premium, if any) or interest on any Securities of that series, deposit with a
Paying Agent a sum sufficient to pay the principal (and premium, if any) or
interest so becoming due, such sum to be held in trust for the benefit of the
Persons entitled to such principal, premium or interest, and (unless such Paying
Agent is the Trustee) the Company will promptly notify the Trustee of its
actions or failure so to act.

         The Company will cause each Paying agent for any series of Securities
other than the Trustee to execute and deliver to the Trustee an instrument in
which such Paying Agent shall agree with the Trustee, subject to the provisions
of this Section, that such Paying Agent will:

                                     - 54 -
<PAGE>   61

                  (1) hold all sums held by it for the payment of the principal
         of (and premium, if any) or interest on Securities of that series in
         trust for the benefit of the Persons entitled thereto until such sums
         shall be paid to such Persons or otherwise disposed of as herein
         provided;

                  (2) give the Trustee notice of any default by the Company (or
         any other obligor upon the Securities of that series) in the making of
         any payment of principal (and premium, if any) or interest on the
         Securities of that series; and

                  (3) at any time during the continuance of any such default,
         upon the written request of the Trustee, forthwith pay to the Trustee
         all sums so held in trust by such Paying Agent.

         The Company may at any time, for the purpose of obtaining the
satisfaction and discharge of this Indenture or for any other purpose, pay, or
by the Company Order direct any Paying Agent to pay, to the Trustee all sums
held in trust by the Company or such Paying Agent, such sums to be held by the
Trustee upon the same trusts as those upon which such sums were held by the
Company or such Paying Agent; and, upon such payment by any Paying Agent to the
Trustee, such Paying Agent shall be released from all further liability with
respect to such money.

         Any money deposited with the Trustee or any Paying Agent, or then held
by the Company, in trust for the payment of the principal of (and premium, if
any) or interest on any Security of any series and remaining unclaimed for three
years after such principal (and premium, if any) or interest has become due and
payable shall be paid to the Company on Company Request, or (if then held by the
Company) shall be discharged from such trust; and the Holder of such Security
shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with
respect to such trust money, and all liability of the Company as trustee
thereof, shall thereupon cease, provided, however, that the Trustee or such
Paying Agent, before being required to make any such repayment, may at the
expense of the Company cause to be published once, in a newspaper published in
the English language, customarily published on each Business Day and of general
circulation in the Borough of Manhattan, The City of New York, notice that such
money remains unclaimed and that, after a date specified therein, which shall
not be less than thirty (30) days from the date of such publication, any
unclaimed balance of such money then remaining will be repaid to the Company.

SECTION 1004. Corporate Existence.

         Subject to Article Eight, the Company will do or cause to be done all
things necessary to preserve and keep in full force and effect its corporate
existence, rights (charter and statutory) and franchises; provided, however,
that the Company shall not be required to preserve any such right or franchise
if the Company shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company and its Subsidiaries
considered as a whole and that the loss thereof is not disadvantageous in any
material respect to the Holders.

                                     - 55 -
<PAGE>   62

SECTION 1005. Statement as to Compliance.

         The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year, a written statement, which need not comply with Section
102, signed by the Chairman of the Board, the President, a Vice Chairman or a
Vice President and by the Treasurer, an Assistant Treasurer, the Comptroller or
an Assistant Comptroller of the Company, stating, as to each signer thereof,
that

                  (1) a review of the activities of the Company during such year
         and of performance under this Indenture has been made under his
         supervision, and

                  (2) to the best of his knowledge, based on such review, (a)
         the Company has fulfilled all its obligations under this Indenture
         through such year, or, if there has been a default in the fulfillment
         of any such obligation, specifying each such default known to him and
         the nature and status thereof, and (b) no event has occurred and is
         continuing which is, or after notice or lapse of time or both would
         become, an Event of Default, or, if such an event has occurred and is
         continuing, specifying each such event known to him and the nature and
         status thereof.

SECTION 1006. Waiver of Certain Covenants.

         The Company may omit in any particular instance to comply with any
term, provision or condition set forth in Section 1004 with respect to the
Securities of any series if before the time for such compliance the Holders of
at least a majority in principal amount of the Outstanding Securities of such
series shall, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such term, provision or condition
and, until such waiver shall become effective, the obligations of the Company
and the duties of the Trustee in respect of any such term, provision or
condition shall remain in full force and effect.

                                 ARTICLE ELEVEN
                            REDEMPTION OF SECURITIES

SECTION 1101. Applicability of Article.

         Securities of any series which are redeemable before their Stated
Maturity shall be redeemable in accordance with their terms and (except as
otherwise specified as contemplated by Section 301 for Securities of any series)
in accordance with this Article or Article Twelve.

SECTION 1102. Election to Redeem; Notice to Trustee.

         The election of the Company to redeem any Securities shall be evidenced
by a Board Resolution. In case of any redemption at the election of the Company
of no less than all the Securities of any series, the Company shall, at least
sixty (60) days prior to the Redemption Date fixed by the Company (unless a
shorter notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date and of the principal amount of Securities of such series to be
redeemed. In the case of any redemption of Securities at the election of the
Company prior to the expiration of any restriction on redemptions provided in
the terms of such Securities or

                                     - 56 -
<PAGE>   63

elsewhere in this Indenture, the Company shall furnish the Trustee with an
Officers' Certificate evidencing compliance with such restriction.

SECTION 1103. Selection by Trustee of Securities to be Redeemed.

         If less than all the Securities of any series are to be redeemed, the
particular Securities to be redeemed shall be selected not more than sixty (60)
days prior to the Redemption Date by the Trustee, from the Outstanding
Securities of such series not previously called for redemption, by such method
as the Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to the minimum authorized
denomination for Securities of that series or any integral multiple thereof) of
the principal amount of Securities of such series of a denomination larger than
the minimum authorized denomination for Securities of that series.

         If any Security of any series selected for partial redemption is
converted in part before termination of the conversion right with respect to the
portion of the Security so selected, the converted portion of such Security
shall be deemed (so far as may be) to be the portion selected for redemption.
Securities of any series that have been converted during a selection of such
Securities to be redeemed may be treated by the Trustee as Outstanding for the
purpose of such selection.

         The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption and, in the case of any Securities selected
for partial redemption, the principal amount thereof to be redeemed.

         For all purposes of this Indenture, unless the context otherwise
requires, all provisions relating to the redemption of Securities shall relate,
in the case of any Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.

SECTION 1104. Notice of Redemption.

         Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not less than thirty (30) nor more than sixty (60) days prior to
the Redemption Date, to each Holder of Securities to be redeemed, at his address
appearing in the Security Register.

         All notices of redemption shall state:

                  (1) the Redemption Date,

                  (2) the Redemption Price and the amount of any accrued
         interest, if any, to the Redemption Date,

                  (3) if less than all the Outstanding Securities of any series
         are to be redeemed, the identification (and, in the case of partial
         redemption, the principal amounts) of the particular Securities to be
         redeemed,

                                     - 57 -
<PAGE>   64

                  (4) that on the Redemption Date, the Redemption Price and
         accrued interest, if any, will become due and payable upon each such
         Security to be redeemed and, if applicable, that interest thereon will
         cease to accrue on and after said date,

                  (5) the Conversion Rate relating to the Securities being
         redeemed, the date on which the right to convert such Securities will
         terminate and the places where the Securities may be surrendered for
         conversion, and

                  (6) the place or places where such Securities are to be
         surrendered for payment of the Redemption Price and any accrued
         interest to the Redemption Date, and

                  (7) that the redemption is for a sinking fund, if such is the
         case.

         Notice of redemption of Securities to be redeemed at the election of
the Company shall be given by the Company or, at the Company's request, by the
Trustee in the name and at the expense of the Company. Such notice, when given,
shall be irrevocable.

SECTION 1105. Deposit of Redemption Price.

         Prior to any Redemption Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest, if any, on, all the
Securities which are to be redeemed on that date other than any Securities
called for redemption on that date which have been converted prior to the date
of such deposit.

SECTION 1106. Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid, the Securities to
be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for redemption in accordance with said notice, such Security shall
be paid by the Company at the Redemption Price, together with accrued interest
to the Redemption Date; provided, however, that installments of interest whose
Stated Maturity is on or prior to the Redemption Date shall be payable to the
Holders of such Securities, or one or more Predecessor Securities, registered as
such at the close of business on the relevant Record Dates according to their
terms and the provisions of Section 307.

         If any Security called for redemption shall not be so paid upon
surrender therefor for redemption, the principal (and premium, if any) shall,
until paid, bear interest from the Redemption Date at the rate prescribed
therefor in the Security and such Security shall remain convertible until the
principal of such Security (or portion thereof, as the case may be) shall have
been paid or duly provided for.

                                     - 58 -
<PAGE>   65

SECTION 1107. Securities Redeemed in Part.

         Any Security which is to be redeemed only in part shall be surrendered
at a Place of Payment therefor (with, if the Company or the Trustee so requires,
due endorsement by, or a written instrument of transfer in form satisfactory to
the Company and the Trustee duly executed by, the Holder thereof or his attorney
duly authorized in writing) and the Company shall execute, and the Trustee shall
authenticate and deliver to the Holder of such Security without service charge,
a new Security or Securities of the same series, of any authorized denomination
as required by such Holder, in aggregate principal amount equal to and in
exchange for the unredeemed portion of the principal of the Security so
surrendered.

                                 ARTICLE TWELVE
                                  SINKING FUNDS

SECTION 1201. Applicability of Article.

         The provisions of this Article shall be applicable to any sinking fund
for the retirement of Securities of a series except as otherwise specified as
contemplated by Section 301 for Securities of such series.

         The minimum amount of any sinking fund payment provided for by the
terms of Securities of any series is herein referred to as a "mandatory sinking
fund payment," and any payment in excess of such minimum amount provided for by
the terms of Securities of any series is herein referred to as an "optional
sinking fund payment." If provided for by the terms of Securities of any series,
the cash amount of any sinking fund payment may be subject to reduction as
provided in Section 1202. Each sinking fund payment shall be applied to the
redemption of Securities of any series as provided for by the terms of
Securities of such series.

SECTION 1202. Satisfaction of Sinking Fund Payments With Securities.

         The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption) and (2) may apply as a credit
Securities of a series which have been redeemed earlier at the election of the
Company pursuant to the terms of such Securities or through the application of
permitted optional sinking fund payments pursuant to the terms of such
Securities or through the application of permitted option sinking fund payments
pursuant to the terms of such Securities, in each case in satisfaction of all or
any part of any sinking fund payment with respect to the Securities of such
series required to be made pursuant to the terms of such Securities as provided
for by the terms of such series; provided, that such Securities have not been
previously so credited. Such Securities shall be received and credited for such
purpose by the Trustee at the Redemption Price specified in such Securities for
redemption through operation of the sinking fund and the amount of such sinking
fund payment shall be reduced accordingly.

SECTION 1203. Redemption of Securities for Sinking Fund.

         Not less than sixty (60) days prior to each sinking fund payment date
for any series of Securities, the Company will deliver to the Trustee an
Officers' Certificate specifying the amount of the next ensuing sinking fund
payment for that series pursuant to the terms of that

                                     - 59 -
<PAGE>   66

series, the portion thereof, if any, which is to be satisfied by payment of cash
and the portion thereof, if any, which is to be satisfied by delivering and
crediting Securities of that series pursuant to Section 1202 and will also
deliver to the Trustee any Securities to be so delivered. Not less than thirty
(30) days before each such sinking fund payment date the Trustee shall select
the Securities to be redeemed upon such sinking fund payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be given
in the name of and at the expense of the Company in the manner provided in
Section 1104. Such notice having been duly given, the redemption of such
Securities shall be made upon the terms and in the manner stated in Sections
1106 and 1107.

                                ARTICLE THIRTEEN
                       DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1301. Applicability of Article; Company's Option to Effect Defeasance or
                    Covenant Defeasance.

         If pursuant to Section 301 provision is made for either or both of (a)
defeasance of the Securities of a series under Section 1302 or (b) covenant
defeasance of the Securities of a series under Section 1303, then the provisions
of such Section or Sections, as the case may be, together with the other
provisions of this Article Thirteen, shall be applicable to the Securities of
such series, and the Company may at its option by Board Resolution, at any time,
with respect to the Securities of such series, elect to have either Section 1302
(if applicable) or Section 1303 (if applicable) be applied to the Outstanding
Securities of such series upon compliance with the conditions set forth below in
this Article Thirteen.

SECTION 1302. Defeasance and Discharge.

         Upon the Company's exercise of the above option applicable to this
Section with respect to the Outstanding Securities of a particular series, the
Company shall be deemed to have been discharged from its obligations with
respect to the Outstanding Securities of such series on and after the date the
conditions precedent set forth below are satisfied (hereinafter, "defeasance").
For this purpose, such defeasance means that the Company shall be deemed to have
paid and discharged the entire indebtedness represented by the Outstanding
Securities of such series and to have satisfied all its other obligations under
such Securities and this Indenture insofar as such Securities are concerned (and
the Trustee, at the expense of the Company, shall execute power instruments
acknowledging the same), except for the following which shall survive until
otherwise terminated or discharged hereunder: (A) the rights of Holders of
Securities of such series to receive, solely from the trust fund described in
Section 1304 as more fully set forth in such Section, payments of the principal
when due, (B) the Company's obligations with respect to such Securities under
Sections 304, 305, 306, 607, 1002, 1003 and 1306 and such obligations as shall
be ancillary thereto, (C) the rights, powers, trusts, duties, immunities,
indemnities and other provisions in respect of the Trustee hereunder and (D)
this Article Thirteen. Subject to compliance with this Article 1302
notwithstanding the prior exercise of its option under Section 1303 with respect
to the Securities of such series.

                                     - 60 -
<PAGE>   67

SECTION 1303. Covenant Defeasance.

         Upon the Company's exercise of the above option applicable to this
Section with respect to the Outstanding Securities of a particular series, the
Company shall be released from its obligations under Sections 801, 1005 and 1006
(and any other covenant applicable to such Securities that is determined
pursuant to Section 301 to be subject to covenant defeasance under this Section)
and the occurrence of an event specified in Clause (4) of the Section 501 with
respect to any of Sections 801, 1005 or 1006 (and any other Event of Default
applicable to such Securities that is determined pursuant to Section 301 to be
subject to covenant defeasance under this Section) shall not be deemed to be an
Event of Default with respect to the Outstanding Securities of such series on
and after the date the conditions set forth below are satisfied (hereinafter,
"covenant defeasance"). For this purpose, such covenant defeasance means that,
with respect to the Outstanding Securities of such series, the Company may omit
to comply with and shall have no liability in respect of any term, condition or
limitation set forth in any such Section or Clause whether directly or
indirectly by reason of any reference elsewhere herein to any such Section or
Clause to any other provision herein or in any other document, but the remainder
of this Indenture and such Securities shall be unaffected thereby.

SECTION 1304. Conditions to Defeasance or Covenant Defeasance.

         The following shall be the conditions precedent to application of
either Section 1302 or Section 1303 to the Outstanding Securities of a
particular series:

                  (1) The Company shall irrevocably have deposited or cause to
         be deposited with the Trustee (or any trustee satisfying the
         requirements of Section 609 who shall agree to comply with the
         provisions of this Article Thirteen applicable to it) as trust funds in
         trust for the purpose of making the following payments, specifically
         pledged as security for, and dedicated solely to, the benefit of the
         Holders of such Securities, (A) money in an amount, or (B) Government
         Obligations which through the scheduled payment of principal and
         interest in respect thereof in accordance with their terms will
         provide, not later than one day before the due date of any payment,
         money in any amount, or (C) a combination thereof, sufficient, without
         reinvestment, in the opinion of nationally recognized firm of
         independent public accountants expressed in a written certification
         thereto delivered to the Trustee, to pay and discharge, and which shall
         be applied by the Trustee (or other qualifying trustee) to pay and
         discharge, (i) the principal of any and premium and interest on the
         Outstanding Securities of such series on the maturity of such
         principal, premium or interest and (ii) any mandatory sinking fund
         payments or analogous payments applicable to the Outstanding Securities
         of such series on the day on which such payments are due in accordance
         with the terms of this Indenture and of such Securities. Before such a
         deposit, the Company may make arrangements satisfactory to the Trustee
         for the redemption of Securities at a future date or dates in
         accordance with Article Eleven, which shall be given effect in applying
         the foregoing. For this purpose, "Government Obligations" means (A)
         with respect to any series of Securities the principal of and any
         premium and interest on which are payable in U.S. dollars securities
         that are (x) direct obligations of the United States of America for the
         payment of which its full faith and credit is pledged or (y)
         obligations of a Person controlled or supervised by and acting as an
         agency or instrumentality of the United

                                     - 61 -
<PAGE>   68

         States of America the timely payment of which is unconditionally
         guaranteed as a full faith and credit obligation by the United States
         of America, which, in either case, are not callable or redeemable at
         the option of the issuer thereof, and shall also include a depositary
         receipt issued by a bank (as defined in Section 3(a)(2) of the
         Securities Act of 1933) as custodian with respect to any such
         Government Obligation held by such custodian for the account of the
         holder of such depositary receipt, provided that (except as required by
         law) such custodian is not authorized to make any deduction from the
         amount payable to the holder of such depositary receipt from any amount
         received by the custodian in respect of the Government Obligation or
         the specific payment of principal of or interest on the Government
         Obligation evidenced by such depositary receipt and (B) with respect to
         any other series of Securities, the meaning specified therefor pursuant
         to Section 301.

                  (2) No Event of Default or event which with notice or lapse of
         time or both would become an Event of Default with respect to the
         Securities of such series shall have occurred and be continuing (A) on
         the date of such deposit or (B) insofar as Sections 501(5) and (6) are
         concerned, at any time during the period ending on the 123rd day after
         the date of such deposit, or, if longer, ending on the day following
         the expiration of the longest preference period applicable to the
         Company in respect of such deposit (it being understood that the
         condition in this condition shall not be deemed satisfied until
         expiration of such period).

                  (3) Such defeasance or covenant defeasance shall not (A) cause
         the Trustee for the Securities of such series to have a conflicting
         interest as defined in Section 608 or for purposes of the Trust
         Indenture Act with respect to any securities of the Company or (B)
         result in the trust arising from such deposit to constitute, unless it
         is qualified as, a regulated investment company under the Investment
         Company Act of 1940, as amended.

                  (4) Such defeasance or covenant defeasance shall not result in
         a breach or violation of, or constitute a default under, this Indenture
         or any other agreement or instrument to which the Company is a party or
         by which it is bound.

                  (5) In the case of an election under Section 1302, the Company
         shall have delivered to the Trustee an Opinion of Counsel stating that
         (x) the Company has received from, or there has been published by, the
         Internal Revenue Service a ruling, or (y) since the date of this
         Indenture there has been a change in the applicable Federal income tax
         law, in either case to the effect that, and based thereon such opinion
         shall confirm that, the Holders of the Outstanding Securities of such
         series will not recognize income, gain or loss of Federal income tax
         law, in either case to the effect that, and based thereon such opinion
         shall confirm that, the Holders of the Outstanding Securities of such
         series will not recognize income, gain or loss of Federal income tax
         purposes as a result of such defeasance and will be subject to Federal
         income tax on the same amounts, in the same manner and at the same
         times as would have been the case if such defeasance had not occurred.

                  (6) In the case of an election under Section 1303, the Company
         shall have delivered to the Trustee an Opinion of Counsel to the effect
         that the Holders of

                                     - 62 -
<PAGE>   69

         the Outstanding Securities of such series will not recognize income,
         gain or loss for Federal income tax purposes as a result of such
         covenant defeasance and will be subject to Federal income tax on the
         same amounts, in the same manner and at the same times as would have
         been the case if such covenant defeasance had not occurred.

                  (7) Such defeasance or covenant defeasance shall be effected
         in compliance with any additional terms, conditions or limitations
         which may be imposed on the Company in connection therewith pursuant to
         Section 301.

                  (8) The Company shall have delivered to the Trustee an
         Officers' Certificate and an Opinion of Counsel, each stating that all
         conditions precedent provided for relating to either the defeasance
         under Section 1302 or the covenant defeasance under Section 1303 (as
         the case may be) have been complied with.

                  (9) The Company shall have delivered to the Trustee an
         Officers' Certificate to the effect that the Securities of such series,
         if listed on any securities exchange, will not be delisted as a result
         of such deposit.

SECTION 1305. Deposited Money and U.S. Government Obligations to be Held in
                    Trust; Other Miscellaneous Provisions.

         Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof) deposited
with the Trustee (or other qualifying trustee - collectively, for purposes of
this Section 1305, the "Trustee") pursuant to Section 1304 in respect of the
Outstanding Securities of such series shall be held in trust and applied by the
Trustee, in accordance with the provisions of such Securities and this
Indenture, to the payment, either directly or through any Paying Agent (but not
including the Company acting as its own Paying Agent) as the Trustee may
determine, to the Holders of such Securities, of all sums due and to become due
thereon in respect of principal, premium and interest, but such money need not
be segregated from other funds except to the extent required by law.

         The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the money or U.S. Government
Obligations held by it as provided in Section 1304 which, in the opinion of a
nationally recognized firm of independent public accountants expressed in a
written certification thereof delivered to the Trustee, are in excess of the
amount thereof which would then be required to be deposited to effect an
equivalent defeasance or covenant defeasance.

SECTION 1306. Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money in
accordance with Section 1302 or 1303 with respect to the Securities of any
series by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, then the
Company's obligations under this Indenture and the Securities of such series
shall be revived and reinstated as though no deposit had occurred pursuant to
this Article Thirteen until such time as the Trustee or Paying Agent is
permitted to apply all such money in accordance with Section 1302 or 1303;
provided, however, that if the Company makes any payment of the principal of
(premium, if any) or interest on any such Security following the

                                     - 63 -
<PAGE>   70

reinstatement of its obligations, the Company shall be subrogated to the rights
of the Holders of such payment from the money held by the Trustee or the Paying
Agent.

                                ARTICLE FOURTEEN
                  REPAYMENT OF SECURITIES AT OPTION OF HOLDERS

SECTION 1401. Applicability of Article.

         Securities of any series which are repayable before their Stated
Maturity at the option of the Holders shall be repaid in accordance with their
terms and (except as otherwise specified as contemplated by Section 301 for
Securities of any series) in accordance with this Article.

SECTION 1402. Notice of Repayment Date.

         Notice of any Repayment Date with respect to Securities of any series
shall, unless otherwise specified by the terms of the Securities of such series,
be given by the Company not less than forty-five (45) nor more than sixty (60)
days prior to such Repayment Date, to the Trustee and to each Holder of
Securities of such series in accordance with Sections 105 and 106, respectively.

         The notice as to Repayment Date shall state:

                  (1) the Repayment Date;

                  (2) the Repayment Price;

                  (3) the place or places where such Securities are to be
         surrendered for payment of the Repayment Price, which shall be the
         office or agency of the Company in each Place of Payment, and the date
         by which Securities must be so surrendered in order to be repaid;

                  (4) a description of the procedure which a Holder must follow
         to exercise a repayment right;

                  (5) the Conversion Rate relating to the Securities being
         repaid, the date on which the right to convert such Securities will
         terminate and the places where the Securities may be surrendered for
         conversion, and

                  (6) that exercise of the option to elect repayment is
         irrevocable.

         No failure of the Company to give the foregoing notice shall limit any
Holder's right to exercise a repayment right.

SECTION 1403. Deposit of Repayment Price.

         On or prior to any Repayment Date, the Company shall deposit with the
Trustee or with a Paying Agent (or, if the Company is acting as its own Paying
Agent, segregate and hold in trust as provided in Section 1003) an amount of
money, in immediately available funds, sufficient to

                                     - 64 -
<PAGE>   71

pay the Repayment Price of an (except if the Repayment Date shall be an Interest
Payment Date) accrued interest on, all the Securities of such series which are
to be repaid on that date other than any Securities which are to be repaid on
that date which have been converted prior to the date of such deposit.

SECTION 1404. Securities Payable on Repayment Date.

         The form of option to elect repayment having been delivered as
specified in the form of Security for such series as provided in Section 203,
the Securities to be repaid shall, on the Repayment Date, become due and payable
at the Repayment Price applicable thereto, and from and after such date (unless
the Company shall default in the payment of the Repayment Price and accrued
interest) such Securities shall cease to bear interest. Upon surrender of any
such Security for repayment in accordance with said notice, such Security shall
be paid by the Company at the Repayment Price, together with accrued interest to
the Repayment Date; provided, however, that, unless otherwise specified as
contemplated by Section 301, installments of interest whose Stated Maturity is
on or prior to such Repayment Date will be payable to the Holders of such
Securities, or one or more Predecessor Securities, registered as such at the
close of business on the relevant Record Date according to their terms and the
provisions of Section 307.

         If any Security to be repaid shall not be so paid upon surrender
thereof for repayment, the principal shall, until paid, bear interest from the
Repayment Date at the rate prescribed in the Security and such Security shall
remain convertible until the principal of such Security (or portion thereof, as
the case may be) shall have been paid or duly provided for.

SECTION 1405. Securities Repaid in Part.

         Any Security which by its terms may be repaid in part at the option of
the Holder and which is to be repaid only in part shall be surrendered at any
office or agency of the Company designated for that purpose pursuant to Section
1002 (with, if the Company or the Trustee so requires, due endorsement by, or a
written instrument or transfer in form satisfactory to the Company and the
Trustee duly executed by, the Holder thereof or his attorney duly authorized in
writing), and the Company shall execute, and the Trustee shall authenticate and
deliver to the Holder of such Security, without service charge, a new Security
or Securities of the same series and of like tenor, of any authorized
denomination as required by such Holder, in aggregate principal amount equal to
and in exchange for the unrepaid portion of the principal of the Security so
surrendered. If a Book-Entry Security is so surrendered, such new Security so
issued shall be a new Book-Entry Security.

                                ARTICLE FIFTEEN
                            CONVERSION OF SECURITIES

SECTION 1501. Conversion Privilege and Conversion Rate.

         Subject to and upon compliance with the provisions of this Article, at
the option of the Holder thereof, any Security of any series (or any portion
thereof which is $1,000 or any integral multiple of $1,000 in excess thereof)
may be converted at any time following the last original

                                     - 65 -
<PAGE>   72

issue date of the Securities of such series into fully paid and nonassessable
shares of Common Stock of the Company (calculated as to each conversion to the
nearest 1/100 of a share) at the Conversion Rate in effect at the time of
conversion. Such conversion right with respect to any Security shall expire at
the close of business on the final Stated Maturity thereof, subject, in the case
of conversion of a Book-Entry Security, to any applicable book-entry procedures
of the Depositary for such conversion. In case a Security or portion thereof is
called for redemption at the election of the Company or is delivered for
repurchase at the option of the Holder, such conversion right in respect of the
Security or portion thereof so called shall expire at the close of business on
the Redemption Date or the Repayment Date, unless the Company defaults in making
the payment due upon redemption or the repurchase, as the case may be (subject
as aforesaid to any applicable book-entry procedures).

         The Conversion Rate shall be adjusted in certain instances as provided
in this Article Fifteen. The price at which shares of Common Stock shall be
delivered upon conversion (herein called the "Conversion Price") shall at any
time be equal to $1,000 divided by the then applicable Conversion Rate (and
rounded to the nearest cent).

SECTION 1502. Exercise of Conversion Privilege.

         In order to exercise the conversion privilege with respect to any
Security or portion thereof, the Holder of any Security to be converted or any
other person acting on its behalf shall surrender such Security, duly endorsed
or assigned to the Company or in blank at any office or agency of the Company
maintained for that purpose pursuant to Section 1002, accompanied by a duly
signed conversion notice substantially in the form set forth in Annex A stating
that the Holder elects to convert such Security or, if less than the entire
principal amount thereof is to be converted, the portion thereof to be
converted. Alternatively, if such security is represented by a Book-Entry
Security, conversion may be effected by written order given to the Trustee in
accordance with the applicable procedures of the Depositary then in effect. Each
Security surrendered for conversion (in whole or in part) during a Record Date
Period shall (except in the case of any Security or portion thereof which has
been called for redemption on a Redemption Date or repurchase on a Repayment
Date occurring within such period) be accompanied by payment in New York
Clearing House funds or other funds acceptable to the Company of an amount equal
to the interest payable on the Interest Payment Date relating to such Record
Date Period on the principal amount of such Security being surrendered for
conversion, and the interest payable in respect of such Security on such
Interest Payment Date shall be paid to the Holder of the such Security as of the
Regular Record Date relating to such Record Date Period. The interest payable on
such Interest Payment Date with respect to any Security which has been called
for redemption on a Redemption Date, or is repurchaseable on a Repayment Date,
occurring, in either case, during a Record Date Period, which Security is
surrendered for conversion during such Record Date Period, shall be paid to the
Holder of such Security being converted in an amount equal to the interest that
would have been payable on such Security if such Security had been converted as
of the close of business on such Interest Payment Date. Interest payable in
respect of any Security surrendered for conversion on or after an Interest
Payment Date shall be paid to the Holder of such Security as of the next
preceding Regular Record Date, notwithstanding the exercise of the right of
conversion.

                                     - 66 -
<PAGE>   73

         Any Security surrendered for conversion in accordance with the
foregoing provisions shall be deemed to have been converted immediately prior to
the close of business on the day of such surrender, and at such time the rights
of the Holder of such Security as a Holder shall cease, and the Person or
Persons entitled to receive the Common Stock issuable upon conversion shall be
treated for all purposes as the record holder or holders of such Common Stock at
such time. As promptly as practicable on or after the conversion date, the
Company shall issue and deliver, out of its authorized but previously unissued
shares of Common Stock, at the office of such Conversion Agent a certificate or
certificates for the number of full shares of newly issued Common Stock issuable
upon conversion, together with payment in lieu of any fraction of a share, as
provided in Section 1503.

         In the case of any Security which is converted in part only, upon such
conversion the Company shall execute and the Trustee shall authenticate and
deliver to the Holder thereof, at the expense of the Company, a new Security or
Securities of authorized denominations in an aggregate principal amount equal to
the unconverted portion of the principal amount of such Security. A Security may
be converted in part, but only if the principal amount of such Security to be
converted is any integral multiple of $1,000 and the principal amount of such
security to remain outstanding after such conversion is equal to $1,000 or any
integral multiple of $1,000 in excess thereof.

         If shares of Common Stock to be issued upon conversion of a Security,
or Securities to be issued upon conversion of a Security in part only, are to be
registered in a name other than that of the Holder of such Security, the
Security Registrar shall, prior to the conversion of such Security, record in
the Security Register the transfer of that portion of the Security to be so
converted in the name of the person in whose name such Common Stock or
Securities are to be registered.

SECTION 1503. Fractions of Shares of Common Stock.

         No fractional shares of Common Stock or scrip certificates in respect
thereof shall be issued upon conversion of any Securities of any series. If more
than one Security of any series shall be surrendered for conversion at one time
by the same Holder, the number of full shares which shall be issuable upon
conversion thereof shall be computed on the basis of the aggregate principal
amount of the Securities so surrendered. Instead of any fractional shares of
Common Stock which would otherwise be issuable upon conversion of any Security,
the Company shall pay a cash adjustment in respect of such fraction (calculated
to the nearest 1/100 of a share) in an amount in U.S. dollars equal to the same
fraction of the current market price per Common Share (calculated in accordance
with Section 1504(h) hereof) at the close of business on the day of conversion,
or at the Company's option, the Company shall round up the conversion
transaction to the next higher whole share.

SECTION 1504. Adjustment of Conversion Rate.

         The Conversion Rate applicable to any series of Securities shall be
subject to adjustments from time to time as follows:

                  (a) In case at any time during which Securities of any series
         are Outstanding the Company shall pay or make a dividend or other
         distribution on any class of capital

                                     - 67 -
<PAGE>   74

         stock of the Company payable in shares of Common Stock, the Conversion
         Rate in effect at the opening of business on the day following the date
         fixed for the determination of stockholders entitled to receive such
         dividend or other distribution shall be increased by dividing such
         Conversion Rate by a fraction of which the numerator shall be the
         number of shares of Common Stock outstanding at the close of business
         on the date fixed for such determination and the denominator shall be
         the sum of such number of shares and the total number of shares
         constituting such dividend or other distribution, such increase to
         become effective immediately after the opening of business on the day
         following the date fixed for such determination. If, after any such
         date fixed for determination, any dividend or distribution is not in
         fact paid, such Conversion Rate shall be immediately readjusted,
         effective as of the date the Board of Directors determines not to pay
         such dividend or distribution, to the Conversion Rate that would have
         been in effect if such determination date had not been fixed. For the
         purposes of this paragraph (a), the number of shares of Common Stock at
         any time outstanding shall not include shares held in the treasury of
         the Company but shall include shares issuable in respect of scrip
         certificates, if any, issued in lieu of fractions of shares of Common
         Stock. The Company will not pay any dividend or make any distribution
         on shares of Common Stock held in the treasury of the Company.

                  (b) In case at any time during which Securities of any series
         are Outstanding the Company shall issue rights, warrants or options to
         all holders of its Common Stock entitling them to subscribe for or
         purchase shares of Common Stock at a price per share less than the
         current market price per share (determined as provided in paragraph (h)
         of this Section 1504) of the Common Stock on the date fixed for the
         determination of stockholders entitled to receive such rights, warrants
         or options, the Conversion Rate in effect at the opening of business on
         the day following the date fixed for such determination shall be
         increased by dividing such Conversion Rate by a fraction of which the
         numerator shall be the number of shares of Common Stock outstanding at
         the close of business on the date fixed for such determination plus the
         number of shares of Common Stock which the aggregate of the offering
         price of the total number of shares of Common Stock so offered for
         subscription or purchase would purchase at such current market price
         and the denominator shall be the number of shares of Common Stock
         outstanding at the close of business on the date fixed for such
         determination plus the number of shares of Common Stock so offered for
         subscription or purchase, such increase to become effective immediately
         after the opening of business on the day following the date fixed for
         such determination. For the purposes of this paragraph (b), the number
         of shares of Common Stock at any time outstanding shall not include
         shares held in the treasury of the Company but will include shares
         issuable in respect of scrip certificates, if any, issued in lieu of
         fractions of shares of Common Stock. The Company will not issue any
         rights or warrants in respect of shares of Common Stock held in the
         treasury of the Company.

                  (c) In case at any time during which Securities of any series
         are Outstanding the outstanding shares of Common Stock shall be
         subdivided into a greater number of shares of Common Stock, such
         Conversion Rate in effect at the opening of business on the day
         following the day upon which such subdivision becomes effective shall
         be proportionately increased, and, conversely in case outstanding
         shares of Common Stock shall each be combined into a smaller number of
         shares of Common Stock, the

                                     - 68 -
<PAGE>   75

         Conversion Rate in effect at the opening of business on the day
         following the day upon which such combination becomes effective shall
         be proportionately reduced, such increase or reduction, as the case may
         be, to become effective immediately after the opening of business on
         the day following the day upon which such subdivision or combination
         becomes effective.

                  (d) In case at any time during which Securities of any series
         are Outstanding the Company shall, by dividend or otherwise, distribute
         to all holders of its Common Stock evidences of its indebtedness,
         shares of capital stock, or assets (including securities, but excluding
         any rights, warrants or options referred to in paragraph (b) of this
         Section 1504, any dividend or distribution paid exclusively in cash,
         any dividend or distribution referred to in paragraph (a) of this
         Section 1504 and any merger or consolidation to which Section 1511
         applies), such Conversion Rate shall be adjusted so that the same shall
         equal the rate determined by dividing such Conversion Rate in effect
         immediately prior to the close of business on the date fixed for the
         determination of stockholders entitled to receive such distribution by
         a fraction of which the numerator shall be the current market price per
         share (determined as provided in paragraph (h) of this Section 1504) of
         the Common Stock on the date fixed for such determination less the then
         fair market value (as determined by the Board of Directors, whose
         determination shall be conclusive, and described in a Board Resolution
         filed with the Trustee) of the portion of the assets, shares or
         evidences of indebtedness so distributed applicable to one share of
         Common Stock and the denominator shall be such current market price per
         share of Common Stock, such adjustment to become effective immediately
         prior to the opening of business on the day following the date fixed
         for the determination of stockholders entitled to receive such
         distribution.

                  (e) In case at any time during which Securities of any series
         are Outstanding the Company shall, by dividend or otherwise, make a
         distribution to all holders of its Common Stock consisting exclusively
         of cash (excluding any cash that is distributed upon a merger or
         consolidation or a sale or transfer of all or substantially all of the
         assets of the Company to which Section 1511 applies or as part of a
         distribution referred to in paragraph (d) of this Section 1504) in an
         aggregate amount that, combined together with (1) the aggregate amount
         of any other distributions to all holders of its Common Stock made
         exclusively in cash within the 12 months preceding the date of payment
         of such distribution and in respect of which no adjustment pursuant to
         this paragraph (e) has been made and (2) the aggregate of any cash plus
         the fair market value (as determined by the Board of Directors, whose
         determination shall be conclusive and described in a Board Resolution
         filed with the Trustee) of consideration payable in respect of any
         tender offer by the Company or any of its Subsidiaries for all or any
         portion of the Common Stock concluded within the 12 months preceding
         the date of payment of such distribution and in respect of which no
         adjustment pursuant to paragraph (f) of this Section 1504 has been
         made, exceeds ten percent (10%) of the product of the current market
         price per share of the Common Stock on the date for the determination
         of holders of shares of Common Stock entitled to receive such
         distribution times the number of shares of Common Stock outstanding on
         such date (the "aggregate current market price"), then, and in each
         such case, immediately after the close of business on such date for
         determination, such Conversion Rate shall be increased so that the same
         shall equal the rate determined by

                                     - 69 -
<PAGE>   76

         dividing such Conversion Rate in effect immediately prior to the close
         of business on the date fixed for determination of the stockholders
         entitled to receive such distribution by a fraction (i) the numerator
         of which shall be equal to the current market price per share
         (determined as provided in paragraph (h) of this Section 1504) of the
         Common Stock on the date fixed for such determination less an amount
         equal to the quotient of (x) the excess of such combined cash tender
         amount over such aggregate current market price divided by (y) the
         number of shares of Common Stock outstanding on such date for
         determination and (ii) the denominator of which shall be equal to the
         current market price per share (determined as provided in paragraph (h)
         of this Section 1504) of the Common Stock on such date for
         determination.

                  (f) In case at any time during which Securities of any series
         are Outstanding a tender or exchange offer made by the Company or any
         Subsidiary for all or any portion of the Common Stock shall expire and
         such tender or exchange offer (as amended upon the expiration thereof)
         shall require the payment to stockholders (based on the acceptance (up
         to any maximum specified in the terms of the tender offer) of Purchased
         Shares (as defined below)) of an aggregate consideration having a fair
         market value (as determined by the Board of Directors, whose
         determination shall be conclusive and described in a Board Resolution
         filed with the Trustee) that combined together with (1) the aggregate
         of the cash plus the fair market value (as determined by the Board of
         Directors, whose determination shall be conclusive and described in a
         Board Resolution), as of the expiration of such tender or exchange
         offer, of consideration payable in respect of any other tender or
         exchange offer, by the Company or any Subsidiary for all or any portion
         of the Common Stock expiring within the 12 months preceding the
         expiration of such tender or exchange offer and in respect of which no
         adjustment, pursuant to this paragraph (f) has been made and (2) the
         aggregate amount of any distributions to all holders of the Company's
         Common Stock within 12 months preceding the expiration of such tender
         or exchange offer and in respect of which no adjustment pursuant to
         paragraph (e) of this Section 1504 has been made (the "combined tender
         and cash amount") exceeds ten percent (10%) of the product of the
         current market price per share of the Common Stock (determined as
         provided in paragraph (h) of this Section 1504) as of the last time
         (the "Expiration Time") tenders or exchanges could have been made
         pursuant to such tender or exchange offer (as it may be amended) times
         the number of shares of Common Stock outstanding (including any
         tendered or exchanged shares) on the Expiration Time, then, and in each
         such case, immediately prior to the opening of business on the day
         after the date of the Expiration Time, such Conversion Rate shall be
         adjusted so that the same shall equal the rate determined by dividing
         such Conversion Rate immediately prior to the close of business on the
         date of the Expiration Time by a fraction (i) the numerator of which
         shall be equal to (x) the product of (A) the current market price per
         share of Common Stock (determined as provided in paragraph (h) of this
         Section 1504) on the date of the Expiration Time multiplied by (B) the
         number of shares of Common Stock outstanding (including any tendered or
         exchanged shares) on the date of the Expiration Time less (y) the
         combined tender and cash amount, and (ii) the denominator of which
         shall be equal to the product of (x) the current market price per share
         of the Common Stock (determined as provided in paragraph (h) of this
         Section 1504) as of the Expiration Time multiplied by (y) the number of
         shares of Common Stock outstanding (including any tendered or exchanged
         shares) as of the Expiration

                                     - 70 -
<PAGE>   77

         Time less the number of all shares validly tendered or exchanged and
         not withdrawn as of the Expiration Time (the shares deemed so accepted
         up to any such maximum, being referred to as the "Purchased Shares").

                  (g) The reclassification of Common Stock into securities other
         than Common Stock (other than any reclassification upon a consolidation
         or merger to which Section 1511 applies) shall be deemed to involve (1)
         a distribution of such securities other than Common Stock to all
         holders of Common Stock (and the effective date of such
         reclassification shall be deemed to be "the date fixed for the
         determination of stockholders entitled to receive such distribution"
         and "the date fixed for such determination" within the meaning of
         paragraph (d) of this Section 1504), and (2) a subdivision or
         combination, as the case may be, of the number of shares of Common
         Stock outstanding immediately prior to such reclassification into the
         number of shares of Common Stock outstanding immediately thereafter
         (and the effective date of such reclassification shall be deemed to be
         "the day upon which such subdivision becomes effective" or "the day
         upon which such combination becomes effective," as the case may be, and
         "the day upon which such subdivision or combination becomes effective"
         within the meaning of paragraph (c) of this Section 1504).

                  (h) For the purpose of any computation under paragraphs (b),
         (d), (e) or (f) of this Section 1504, the current market price per
         share of Common Stock on any date shall be deemed to be the average of
         the daily Closing Prices Per Share for the five consecutive Trading
         Days selected by the Company commencing not more than ten (10) Trading
         Days before, and ending not later than, the earlier of the day in
         question and the day before the "ex" date with respect to the issuance
         or distribution requiring such computation. For purposes of this
         paragraph, the term "`ex' date," when used with respect to any issuance
         or distribution, means the first date on which the Common Stock trades
         regular way on the applicable securities exchange or in the applicable
         securities market without the right to receive such issuance or
         distribution.

                  (i) No adjustment in such Conversion Rate shall be required
         unless such adjustment (plus any adjustments not previously made by
         reason of this paragraph (i)) would require an increase or decrease of
         at least one percent (1%) in such rate; provided, however, that any
         adjustments which by reason of this paragraph (i) are not required to
         be made shall be carried forward and taken into account in any
         subsequent adjustment. All calculations under this Article shall be
         made to the nearest cent or to the nearest one-hundredth of a share, as
         the case may be.

                  (j) The Company may make such increases in such Conversion
         Rate, in addition to those required by paragraphs (a), (b), (c), (d),
         (e) and (f) of this Section 1504, as it considers to be advisable in
         order to avoid or diminish any income tax to any holders of shares of
         Common Stock resulting from any dividend or distribution of stock or
         issuance of rights or warrants to purchase or subscribe for stock or
         from any event treated as such for United States federal income tax
         purposes or for any other reasons. The Company shall have the power to
         resolve any ambiguity or correct any error in this paragraph (j) and
         its actions in so doing, absent manifest error, shall be final and
         conclusive.

                                     - 71 -
<PAGE>   78

                  (k) To the extent permitted by applicable law, the Company
         from time to time may increase the Conversion Rate applicable to any
         series of Securities by any amount for any period of time if the period
         is at least twenty (20) days, the increase is irrevocable during such
         period, and the Board of Directors shall have made a determination that
         such increase would be in the best interests of the Company, which
         determination shall be conclusive. Whenever any Conversion Rate is
         increased pursuant to the preceding sentence, the Company shall give
         notice of the increase to the relevant Holders in the manner provided
         in Section 106 at least fifteen (15) days prior to the date the
         increased Conversion Rate takes effect, and such notice shall state the
         increased Conversion Rate and the period during which it will be in
         effect.

SECTION 1505. Notice of Adjustments of Conversion Rate.

         Whenever the Conversion Rate applicable to any series of Securities is
adjusted as herein provided:

                  (a) the Company shall compute the adjusted Conversion Rate in
         accordance with Section 1504 and shall prepare a certificate signed by
         the Chief Financial Officer of the Company setting forth the adjusted
         Conversion Rate and showing in reasonable detail the facts upon which
         such adjustment is based, and such certificate shall forthwith promptly
         be filed with the Trustee and with each Conversion Agent; and

                  (b) a notice stating that such Conversion Rate has been
         adjusted and setting forth the adjusted Conversion Rate shall forthwith
         be prepared, and as soon as practicable after it is prepared, such
         notice shall be provided by the Company to all Holders of such
         Securities in accordance with Section 106.

Neither the Trustee nor any Conversion Agent shall be under any duty or
responsibility with respect to any such certificate or the information and
calculations contained therein, except to exhibit the same to any Holder of
Securities desiring inspection thereof at its office during normal business
hours.

SECTION 1506. Notice of Certain Corporate Action.

         In case:

                  (a) the Company shall declare a dividend (or any other
         distribution) on its Common Stock payable (1) otherwise than
         exclusively in cash or (2) exclusively in cash in an amount that would
         require an adjustment pursuant to Section 1504; or

                  (b) the Company shall authorize the granting to the holders of
         its Common Stock of rights, options or warrants to subscribe for or
         purchase any shares of capital stock of any class or of any other
         rights; or

                  (c) of any reclassification of the Common Stock of the
         Company, or of any consolidation, merger or share exchange to which the
         Company is a party and for which approval of any stockholders of the
         Company is required, or of the conveyance, transfer, sale or lease of
         all or substantially all of the assets of the Company; or

                                     - 72 -
<PAGE>   79

                  (d) of the voluntary or involuntary dissolution, liquidation
         or winding up of the Company;

then the Company shall cause to be filed at each office or agency maintained for
the purpose of conversion of Securities of any series pursuant to Section 1002,
and shall cause to be provided to all Holders in accordance with Section 106, at
least twenty (20) days (or ten (10) days in any case specified in clause (a) or
(b) above) prior to the applicable record or effective date hereinafter
specified, a notice stating (i) the date on which a record is to be taken for
the purpose of such dividend, distribution, rights, options or warrants, or, if
a record is not to be taken, the effective date as of which the holders of
Common Stock of record to be entitled to such dividend, distribution, rights,
options or warrants are to be determined, or (ii) the date on which such
reclassification, consolidation, merger, share exchange, conveyance, transfer,
sale, lease, dissolution, liquidation or winding up is expected to become
effective, and the date as of which it is expected that holders of Common Stock
of record shall be entitled to exchange their Common Stock for securities, cash
or other property deliverable upon such reclassification, consolidation, merger,
share exchange, conveyance, transfer, sale, lease, dissolution, liquidation or
winding up. Neither the failure to give such notice or the notice referred to in
the following paragraph nor any defect therein shall affect the legality or
validity of the proceedings described in clauses (a) through (d) of this Section
1506. If at the time the Trustee shall not be the Conversion Agent, a copy of
such notice and any notice referred to in the following paragraph shall also
forthwith be filed by the Company with the Trustee.

         The Company shall cause to be filed at each office or agency maintained
for the purpose of conversion of Securities of any series pursuant to Section
1002, and shall cause to be provided to all Holders in accordance with Section
106, notice of any tender offer by the Company or any Subsidiary for all or any
portion of the Common Stock at or about the time that such notice of tender
offer is provided to the public generally.

SECTION 1507. Company to Reserve Common Stock.

         The Company shall at all times reserve and keep available, free from
preemptive rights, out of its authorized but previously unissued Common Stock,
for the purpose of effecting the conversion of Securities of any series then
outstanding, the full number of shares of Common Stock then issuable upon the
conversion of all such Outstanding Securities.

SECTION 1508. Taxes on Conversions.

         Except as provided in the next sentence, the Company shall pay any and
all transfer, stamp, documentary and other similar taxes and duties that may be
payable in respect of the issue or delivery of shares of Common Stock on
conversion of Securities of any series pursuant hereto. A Holder delivering a
Security for conversion will be required to pay any tax or duty which may be
payable in respect of any transfer involved in the issue and delivery of shares
of Common Stock in a name other than that of the Holder of the Security to be
converted, and no such issue or delivery shall be made unless and until the
Person requesting such issue has paid to the Company the amount of any such tax
or duty or has established to the satisfaction of the Company that such tax or
duty has been paid.

                                     - 73 -
<PAGE>   80

SECTION 1509. Covenant as to Common Stock.

         The Company covenants that all shares of Common Stock which may be
delivered upon conversion of Securities will be newly issued shares, upon such
delivery, will have been duly authorized and validly issued and will be fully
paid and nonassessable and, except as provided in Section 1508, the Company will
pay all taxes, liens and charges with respect to the issue thereof.

SECTION 1510. Cancellation of Converted Securities.

         All Securities delivered for conversion shall be delivered to the
Trustee to be canceled by or at the direction of the Trustee, which shall
dispose of the same as provided in Section 309.

SECTION 1511. Provision in Case of Consolidation, Merger or Conveyance of
Assets.

         In case of any consolidation of the Company with, or merger of the
Company into, any other Person, any merger of another Person into the Company
(other than a merger which does not result in any reclassification, conversion,
exchange or cancellation of outstanding shares of Common Stock of the Company)
or any conveyance, sale, transfer or lease of all or substantially all of the
assets of the Company, the Person formed by such consolidation or resulting from
such merger or which acquires such assets, as the case may be, shall execute and
deliver to the Trustee a supplemental indenture executed in accordance with
Article Nine providing that the Holder of any Security of any series then
Outstanding shall have the right thereafter, during the period such Security
shall be convertible as specified in Section 1501, to convert such Security only
into the kind and amount of securities, cash and other property receivable upon
such consolidation, merger, sale, transfer or lease by a holder of the number of
shares of Common Stock of the Company into which such Security might have been
converted immediately prior to such consolidation, merger, sale or transfer,
assuming such holder of Common Stock of the Company (1) is not a Person with
which the Company consolidated or merged with or which merged into or with the
Company or to which such conveyance, sale, transfer or lease was made, as the
case may be (a "Constituent Person"), or an Affiliate of a Constituent Person
and (2) failed to exercise its rights of election, if any, as to the kind or
amount of securities, cash and other property receivable upon such
consolidation, merger, conveyance, sale, transfer or lease (provided that if the
kind or amount of securities, cash and other property receivable upon such
consolidation, merger, conveyance, sale, transfer or lease is not the same for
each share of Common Stock of the Company held immediately prior to such
consolidation, merger, conveyance, sale, transfer or lease by other than a
Constituent Person or an Affiliate thereof and in respect of which such rights
of election shall not have been exercised ("Non-Electing Share"), then for the
purpose of this Section 1511 the kind and amount of securities, cash and other
property receivable upon such consolidation, merger, sale or transfer by the
holders of each Non-Electing Share shall be deemed to be the kind and amount so
receivable per share by a plurality of the Non-Electing Shares). Such
supplemental indenture shall provide for adjustments which, for events
subsequent to the effective date of such supplemental indenture, shall be as
nearly equivalent as may be practicable to the adjustments provided for in this
Article. The above provisions of this Section 1511 shall similarly apply to
successive consolidations, mergers, conveyances, sales, transfers or leases.
Notice of the execution of such a supplemental indenture shall be given by the
Company to the Holder of each Security as provided in Section 106 promptly upon
such execution.

                                     - 74 -
<PAGE>   81

         Neither the Trustee, any Paying Agent nor any Conversion Agent shall be
under any responsibility to determine the correctness of any provisions
contained in any such supplemental indenture relating either to the kind or
amount of shares of stock or other securities or property or cash receivable by
Holders of Securities upon the conversion of their Securities after any such
consolidation, merger, conveyance, sale, transfer or lease or to any such
adjustment, but may accept as conclusive evidence of the correctness of any such
provisions, and shall be protected in relying upon, an Opinion of Counsel with
respect thereto, which the Company shall cause to be furnished to the Trustee
upon request.

SECTION 1512. Responsibility of Trustee for Conversion Provisions.

         The Trustee, subject to the provisions of Section 601, and any
Conversion Agent shall not at any time be under any duty or responsibility to
any Holder of Securities of any series to determine whether any facts exist
which may require any adjustment of the applicable Conversion Rate, or with
respect to the nature, extent or amount of any such adjustment when made, or
with respect to the method employed, or herein or in any supplemental indenture
provided to be employed, in making the same, or whether a supplemental indenture
need be entered into. Neither the Trustee, subject to the provisions of Section
601, nor any Conversion Agent shall be accountable with respect to the validity
or value (or the kind or amount) of any shares of Common Stock, or of any other
securities or property or cash, which may at any time be issued or delivered
upon the conversion of any Security; and it or they do not make any
representation with respect thereto. Neither the Trustee, subject to the
provisions of Section 601, nor any Conversion Agent shall be responsible for any
failure of the Company to make any cash payment or to issue, transfer or deliver
any shares of Common Stock or share certificates or other securities or property
or cash upon the surrender of any Security for the purpose of conversion; and
the Trustee, subject to the provisions of Section 601, and any Conversion Agent
shall not be responsible for any failure of the Company to comply with any of
the covenants of the Company contained in this Article.

                                 ARTICLE SIXTEEN
                                  SUBORDINATION

SECTION 1601. Securities Subordinate to Senior Indebtedness.

         The Company covenants and agrees, and each Holder of a Security, by his
acceptance thereof, likewise covenants and agrees, that, to the extent and in
the manner hereinafter set forth in this Article (subject to the provisions of
Article Four), the indebtedness represented by the Securities of each series,
and the payment of the principal of, interest on and all other amounts, if any,
owing with respect to the Securities of each series are hereby expressly made
subordinate and subject in right of payment to the prior payment in full in cash
or other immediately available funds of all Senior Debt of the Company.

SECTION 1602. Payment Over of Proceeds Upon Dissolution, Etc.

         In the event of (a) any insolvency or bankruptcy case or proceeding, or
any receivership, liquidation, reorganization or other similar case or
proceeding in connection therewith, relative to the Company or to its creditors,
as such, or to its assets, or (b) any liquidation, dissolution or

                                     - 75 -
<PAGE>   82

other winding up of the Company, whether voluntary or involuntary and whether or
not involving insolvency or bankruptcy, or (c) any assignment for the benefit of
creditors or any other marshaling of assets and liabilities of the Company, then
and in any such event specified in (a), (b) or (c) above (each such event, if
any, herein sometimes referred to as a "Proceeding") the holders of Senior Debt
shall be entitled to receive payment in full of all amounts due or to become due
on or in respect of all Senior Debt, in cash before the Holders of the
Securities of any series are entitled to receive any payment on account of
principal of (or premium, if any) or interest on such Securities or on account
of the purchase, redemption or other acquisition of Securities by the Company or
any Subsidiary of the Company, and to that end the holders of all Senior Debt
shall be entitled to receive, for application to the payment thereof, any
payment or distribution of any kind or character, whether in cash, property or
securities, which may be payable or deliverable in respect of the Securities of
each series in any such Proceeding.

         In the event that, notwithstanding the foregoing provisions of this
Section 1602, the Trustee or the Holder of any Security shall have received any
payment or distribution of assets of the Company of any kind or character,
whether in cash, securities or other property, before all Senior Debt is paid in
full, and if such fact shall, at or prior to the time of such payment or
distribution, have been made known to the Trustee or, as the case may be, such
Holder, then and in such event such payment or distribution shall be paid over
or delivered forthwith to the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee, agent or other Person making payment or
distribution of assets of the Company for application to the payment of all
Senior Debt, to the extent necessary to pay all Senior Debt in full, after
giving effect to any concurrent payment or distribution to or for the holders of
Senior Debt.

         For purposes of this Article only, the words "any payment or
distribution of any kind or character, whether in cash, property or securities"
shall not be deemed to include a payment or distribution of stock or securities
of the Company as reorganized or readjusted, or securities of the Company or any
other corporation provided for by a plan of reorganization or readjustment which
shares of stock or securities are subordinated in right of payment to all then
outstanding Senior Debt to substantially the same extent as, or to a greater
extent then, the Securities are so subordinated as provided in this Article. The
consolidation of the Company with, or the merger of the Company into, another
Person or the liquidation or dissolution of the Company following the
conveyance, transfer, sale or lease of all or substantially all of its
properties and assets to another Person upon the terms and conditions set forth
in Article Eight shall not be deemed a Proceeding for the purposes of this
Section 1602 if the Person formed by such consolidation or into which the
Company is merged or the Person which acquires by conveyance, transfer, sale or
lease such properties and assets, as the case may be, shall, as a part of such
consolidation, merger, conveyance, transfer, sale or lease comply with the
conditions set forth in Article Eight.

SECTION 1603. No Payment When Senior Debt in Default.

         In the event that the Securities of any series are declared or
otherwise shall become due and payable before their Stated Maturity, then and in
such event the holders of the Senior Debt outstanding at the time such
Securities so become due and payable shall be entitled to receive payment in
full of all amounts due or to become due on or in respect of all Senior Debt in
cash or other immediately available funds or otherwise in a manner satisfactory
to the holders of such Senior Debt, before the Holders of such Securities are
entitled to receive any payment by the

                                     - 76 -
<PAGE>   83

Company on account of the principal of (or premium, if any) or interest on such
Securities or on account of the purchase or other acquisition of such
Securities.

         In the event and during the continuation of any default in the payment
of any amount owing in respect of any Senior Debt beyond any applicable grace
period with respect thereto, or in the event that any event of default with
respect to any Senior Debt shall have occurred and be continuing permitting the
holders of such Senior Debt (or a trustee or other representative on behalf of
the holders thereof) to declare such Senior Debt due and payable prior to the
date on which it would otherwise have become due and payable, unless and until
such event of default shall have been cured or waived or shall have ceased to
exist and such acceleration shall have been rescinded or annulled, or in the
event any judicial proceeding shall be pending with respect to any such default
in payment or event of default, then no payment shall be made by the Company on
account of principal of (or premium, if any) or interest on the Securities of
any series, or on account of the purchase, redemption or other acquisition of
such Securities.

         In the event that, notwithstanding the foregoing provisions of this
Section, the Trustee or the Holder of any Security shall have received any
payment or distribution of assets of the Company of any kind or character,
whether in cash, securities or other property, before all Senior Debt is paid in
full, and if such fact shall, at or prior to the time of such payment or
distribution, have been made known to a Responsible Officer of the Trustee or,
as the case may be, such Holder, then and in such event such payment or
distribution shall be paid over or delivered forthwith to the trustee in
bankruptcy, receiver, liquidating trustee, custodian, assignee, agent or other
Person making payment or distribution of assets of the Company for application
to the payment of all Senior Debt remaining unpaid, to the extent necessary to
pay all Senior Debt in full, after giving effect to any concurrent payment or
distribution to or for the holder of Senior Debt.

         The provisions of this Section shall not apply to any payment with
respect to which Section 1602 would be applicable.

SECTION 1604. Payment Permitted If No Default.

         Nothing contained in this Article or elsewhere in this Indenture or in
any of the Securities shall prevent (a) the Company, at any time except during
the pendency of any proceeding referred to in Section 1602 or under the
conditions described in Section 1603, from making payments at any time of
principal of (or premium, if any) or interest on the Securities of any series,
or (b) the application by the Trustee of any money deposited with it hereunder
to the payment of or on account of the principal of (or premium, if any) or
interest on the Securities of any series or the retention of such payment by the
Holders, if, at the time of such application by the Trustee, it did not have
knowledge that such payment would have been prohibited by the provisions of this
Article.

SECTION 1605. Subrogation to Rights of Holders of Senior Debt.

         Subject to the payment in full of all Senior Debt, the Holders of the
Securities of each series shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Debt pursuant to the provisions
of this Article, to the rights of the holders of such

                                     - 77 -
<PAGE>   84

Senior Debt to receive payments and distributions of cash, property and
securities applicable to the Senior Debt until the principal of (or premium, if
any) and interest on such Securities shall be paid in full. For purposes of such
subrogation, no payments or distributions to the holders of the Senior Debt of
any cash, property or securities to which the Holders of Securities or the
Trustee would be entitled except for the provisions of this Article, and no
payments over pursuant to the provisions of this Article to the holders of
Senior Debt by Holders of Securities or the Trustee, shall, as among the
Company, its creditors other than holders of Senior Debt and the Holders of
Securities, be deemed to be a payment or distribution by the Company to or on
account of the Senior Debt.

SECTION 1606. Provisions Solely to Define Relative Rights.

         The provisions of this Article are and are intended solely for the
purpose of defining the relative rights of the Holders of Securities on the one
hand and the holders of Senior Debt on the other hand. Nothing contained in this
Article or elsewhere in this Indenture or in the Securities is intended to or
shall (a) impair, as among the Company, the creditors of the Company other than
holders of Senior Debt and the Holders of Securities, the obligation of the
Company, which is absolute and unconditional to pay to the Holders of Securities
the principal of (or premium, if any) and interest on Securities as and when the
same shall become due and payable in accordance with their terms; or (b) affect
the relative rights against the Company of the Holders of Securities and
creditors of the Company other than the holders of Senior Debt; or (c) prevent
the Trustee or the Holder of any Security from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the
rights, if any, under this Article of the holders of Senior Debt to receive
cash, property and securities otherwise payable or deliverable to the Trustee or
such Holder.

SECTION 1607. Trustee to Effectuate Subordination.

         Each Holder of a Security by his acceptance thereof authorizes and
directs the Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article and
appoints the Trustee his attorney-in-fact for any and all such purposes.

SECTION 1608. No Waiver of Subordination Provisions.

         No right of any present or future holder of any Senior Debt to enforce
subordination as herein provided shall at any time in any way be prejudiced or
impaired by any act or failure to act on the part of the Company or by any act
or failure to act, in good faith, by any such holder, or by any noncompliance by
the Company with the terms, provisions and covenants of this Indenture,
regardless of any knowledge thereof any such holder may have or be otherwise
charged with.

         Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of or notice to the Trustee or the Holders of Securities of any series,
without incurring responsibility to the Holders of Securities of any series and
without impairing or releasing the subordination provided in this Article or the
obligations hereunder of the Holders of such Securities to the holders of Senior

                                     - 78 -
<PAGE>   85

Debt, do any one or more of the following: (a) change the manner, place or terms
of payment or the time of payment of, or renew or alter, Senior Debt, or
otherwise amend or supplement in any manner Senior Debt or any instrument
evidencing the same or any agreement under which Senior Debt is outstanding; (b)
sell, exchange, release or otherwise deal with any property pledged, mortgaged
or otherwise securing Senior Debt; (c) release any Person liable in any manner
for the collection of Senior Debt; and (d) exercise or refrain from exercising
any rights against the Company and any other Person.

SECTION 1609. Notice to Trustee.

         The Company shall give prompt written notice to the Trustee of any fact
known to the Company which would prohibit the making of any payment to or by the
Trustee in respect of the Securities of any series. Notwithstanding the
provisions of this Article or any other provision of this Indenture, the Trustee
shall not be charged with knowledge of the existence of any facts which would
prohibit the making of any payment to or by the Trustee in respect of any
Securities, unless and until the Trustee shall have received written notice
thereof from the Company or a holder of Senior Debt or from any trustee therefor
or representative thereof; and, prior to the receipt of any such written notice,
the Trustee shall be entitled in all respects to assume that no such facts
exist; provided, however, that if the Trustee shall not have received the notice
provided for in this Section 1609 at least two (2) Business Days prior to the
date upon which by the terms hereof any money may become payable for any purpose
(including, without limitation, the payment of, the principal of or interest on
any Security), then, anything herein contained to the contrary notwithstanding,
the Trustee shall have full power and authority to receive such money and to
apply the same to the purpose for which such money was received and shall not be
affected by any notice to the contrary which may be received by it within two
(2) Business Days prior to such date.

         Subject to the provisions of Section 601, the Trustee shall be entitled
to rely on the delivery to it of a written notice, by a Person representing
itself to be a holder of Senior Debt (or a trustee therefor or representative
thereof) to establish that such notice has been given by a holder of Senior Debt
(or a trustee therefor or representative thereof). In the event that the Trustee
determines in good faith that further evidence is required with respect to the
right of any Person as a holder of Senior Debt to participate in any payment or
distribution pursuant to this Article, the Trustee may request such Person to
furnish evidence to the reasonable satisfaction of the Trustee as to the amount
of Senior Debt held by such Person, the extent to which such Person is entitled
to participate in such payment or distribution and any other facts pertinent to
the rights of such Person under this Article, and if such evidence is not
furnished, the Trustee may defer any payment to such Person pending judicial
determination as to the right of such Person to receive such payment.

SECTION 1610. Reliance on Judicial Order or Certificate of Liquidating Agent.

         Upon any payment or distribution of assets of the Company referred to
in this Article, the Trustee, subject to the provisions of Section 601, and the
Holders of the Securities of any series shall be entitled to rely upon any order
or decree entered by any court of competent jurisdiction in which such
Proceeding is pending, or a certificate of the trustee in bankruptcy, receiver,
liquidating trustee, custodian, assignee for the benefit of creditors, agent or
other Person making

                                     - 79 -
<PAGE>   86

such payment or distribution, delivered to the Trustee or to the Holders of
Securities, for the purpose of ascertaining the Persons entitled to participate
in such payment or distribution, the holders of the Senior Debt and other
indebtedness of the Company, the amount thereof or payable thereon, the amount
or amounts paid or distributed thereon and all other facts pertinent thereto or
to this Article.

SECTION 1611. Trustee Not Fiduciary for Holders of Senior Debt.

         The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Debt and shall not be liable to any such holders if it shall
in good faith, mistakenly pay over or distribute to Holders of Securities or to
the Company or to any other Person cash, property or securities to which any
holders of Senior Debt shall be entitled by virtue of this Article or otherwise.

SECTION 1612. Rights of Trustee as Holder of Senior Debt; Preservation of
Trustee's Rights.

         The Trustee in its individual capacity shall be entitled to all the
rights set forth in this Article with respect to any Senior Debt which may at
any time be held by it, to the same extent as any other holder of Senior Debt,
and nothing in this Indenture shall deprive the Trustee of any of its rights as
such holder.

         Nothing in this Article shall apply to claims of, or payments to, the
Trustee under or pursuant to Section 607.

SECTION 1613. Article Applicable to Paying Agents.

         In case at any time any Paying Agent other than the Trustee shall have
been appointed by the Company and be then acting hereunder, the term "Trustee"
as used in this Article shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article in addition to or in place of the Trustee; provided,
however, that Section 1612 shall not apply to the Company or any Affiliate of
the Company if it or such Affiliate acts as Paying Agent.

SECTION 1614. Payment.

         For the purposes of this Article only, (a) the issuance and delivery of
junior securities upon conversion of Securities in accordance with Article
Fifteen shall not be deemed to constitute a payment or distribution on account
of the principal of (or premium, if any) or interest on Securities or on account
of the purchase or other acquisition of Securities, and (b) the payment,
issuance or delivery of cash, property or securities (other than junior
securities) upon conversion of a Security shall be deemed to constitute payment
on account of the principal of (or premium, if any) or interest on such
Security. For the purposes of this Section, the term "junior securities" means
(1) shares of any stock of any class of the Company and any cash, property or
securities into which the Securities are convertible pursuant to Article Fifteen
and (2) securities of the Company which are subordinated in right of payment to
all Senior Debt which may be outstanding at the time of issuance or delivery of
such securities to substantially the same extent as, or to a greater extent
than, the Securities are so subordinated as provided in this Article.

                                     - 80 -
<PAGE>   87

Nothing contained in this Article or elsewhere in this Indenture or in the
Securities is intended to or shall impair, as among the Company, its creditors
other than holders of Senior Debt and the Holders of Securities, the right,
which is absolute and unconditional, of the Holder of any Security to convert
such Security in accordance with Article Fifteen.

                                ARTICLE SEVENTEEN
                                HOLDERS' MEETINGS

SECTION 1701. Purposes for Which Meetings May be Called.

         A meeting of Holders may be called at any time and from time to time
pursuant to the provisions of this Article for any of the following purposes:

                  (1) to give any notice to the Company or to the Trustee, or to
         give any direction to the Trustee, or to waive or consent to the
         waiving of any Event of Default hereunder and its consequences, or to
         take any other action authorized to be taken by Holders pursuant to any
         of the provisions of Article Five;

                  (2) to remove the Trustee or appoint a successor trustee,
         pursuant to the provisions of Article Six;

                  (3) to consent to the execution of an indenture or indentures
         supplemental hereto pursuant to the provisions of Sections 901 and 902;
         or

                  (4) to take any other action authorized to be taken by or on
         behalf of the Holders of any specified aggregate principal amount of
         the Securities under any other provision of this Indenture or under
         applicable law.

SECTION 1702. Manner of Calling Meetings.

         The Trustee may at any time call a meeting of Holders to take any
action specified in Section 1701. Notice of every meeting of the Holders,
setting forth the time and the place of such meeting and in general terms the
action proposed to be taken at such meeting, shall be mailed by the Trustee to
the Company and to the Holders not less than twenty (20) nor more than sixty
(60) days prior to the date fixed for the meeting. Any meeting shall be valid
without notice if the Holders of all of the Outstanding Securities, and if the
Company and the Trustee are either present or have, before or after the meeting,
waived notice.

SECTION 1703. Call of Meetings by Company or Holders.

         In case at any time the Company, pursuant to a resolution of its Board
of Directors, or the Holders of not less than thirty percent (30%) in aggregate
principal amount of the Outstanding Securities, shall have requested the Trustee
to call a meeting of Holders to take any action authorized in Section 1701 by
written request setting forth in reasonable detail the action proposed to be
taken at the meeting, and the Trustee shall not have mailed notice of such
meeting within twenty (20) days after receipt of such request, then the Company
or such Holders in the amount above specified may determine the time and the
place in the City of Atlanta, Georgia for

                                     - 81 -
<PAGE>   88

such meeting and may call such meeting to take any action authorized in Section
1701, by mailing notice thereof as provided in Section 1702.

SECTION 1704. Who May Attend and Vote at Meetings.

         To be entitled to vote at any meeting of Holders a person shall (a) be
a Holder of one or more Securities with respect to which the meeting is being
held, or (b) be a person appointed by an instrument in writing as proxy by such
Holder of one or more Securities. The only persons who shall be entitled to be
present or to speak at any meeting of the Holders shall be the persons entitled
to vote at such meeting and their counsel and any representatives of the Trustee
and its counsel and any representatives of the Company and its counsel.

SECTION 1705. Regulations May be Made by Trustee.

         Notwithstanding any other provisions of this Indenture, the Trustee may
make such reasonable regulations as it may deem advisable for any meeting of
Holders, in regard to proof of the holding of Securities and of the appointment
of proxies, and in regard to the appointment and duties of inspectors or votes,
the submission and examination of proxies, certificates and other evidence of
the right to vote, and such other matters concerning the conduct of the meeting
as it shall deem appropriate.

         At any meeting each Holder or proxy shall be entitled to one vote for
each $1,000 principal amount of Outstanding Securities held or represented by
him.

SECTION 1706. Evidence of Actions by Holders.

         Whenever the Holders of a specified percentage in aggregate principal
amount of the Securities may take any action, the fact that the Holders of such
percentage have acted may be evidenced by (a) instruments of similar tenor
executed by Holders in person or by attorney or written proxy, (b) the Holders
voting in favor thereof at any meeting of Holders called and held in accordance
with the provisions of the rules for meetings of Holders, or (c) by a
combination thereof. The Trustee may require proof of any matter concerning the
execution of any instrument by a Holder or his attorney or proxy as it shall
deem necessary.

SECTION 1707. Exercise of Rights of Trustee and Holders Not to be Hindered or
Delayed.

         Nothing in this Article contained shall be deemed or construed to
authorize or permit, by reason of any call of a meeting of Holders or any rights
expressly or impliedly conferred hereunder to make such call, any hindrance or
delay in the exercise of any right or rights conferred upon or reserved to the
Trustee or to the Holders under any of the provisions of this Indenture or of
the Securities.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

                                     - 82 -
<PAGE>   89

         In Witness Whereof, the parties hereto have caused this Indenture to be
duly executed, and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.

                                       InfoCure Corporation

                                       By:
                                          --------------------------------------

[Seal]

Attest:

------------------------
                                       [--------------------]

                                       By:
                                          --------------------------------------

[Seal]

Attest:

------------------------
Authorized Officer

                                     - 83 -
<PAGE>   90

State of                            :
         ------------------
                           :        )  :
                                        -----------------
County of                           :
          -----------------

On the ________ day of _______________________, 2000, before me personally came
____________________, to me known, who being duly sworn, did depose and say that
_____ is ___________ of InfoCure Corporation, one of the corporations described
in and which executed the foregoing instrument; _______ that _______ knows the
seal of said corporation; that the seal affixed to said instrument is such
corporation seal; that it was so affixed by authority of the Board of Directors
of said corporation, and that ________ signed _______________ name thereto by
like authority.

                                       -----------------------------------------
                                       Notary Public

                                       My Commission Expires
                                                            --------------------

State of                            :
         ------------------
                           :        )  :
                                        -----------------
County of                           :
          -----------------

On the _____ day of _________________, 2000, before me personally came
_________________, to me known, who being by me duly sworn, did depose and say
that _______ is ____________ of [_________________], one of the corporations
described in and which executed the foregoing instrument; that knows the seal of
said corporation; that the seal affixed to said instrument is such corporation
seal; that it was so affixed by authority of the Board of Directors of said
corporation, and that _______ signed ________________ name thereto by like
authority.

                                       -----------------------------------------
                                       Notary Public

                                       My Commission Expires
                                                            --------------------

                                     - 84 -
<PAGE>   91

                                                                         ANNEX A

                            FORM OF CONVERSION NOTICE

------------------------,
as Conversion Agent

------------------------
------------------------

                  Re:      INFOCURE CORPORATION
                  ____% Convertible Subordinated Notes
                  due            ,        (the "Securities")

         Reference is hereby made to the Indenture, dated as of ___________,
____ (the "Indenture"), between InfoCure Corporation, as Issuer, and
____________, as Trustee. Capitalized terms used but not defined herein shall
have the meanings given to them in the Indenture.

         This letter relates to the Securities specified below, which are
registered in the name of the undersigned (the "Holder"). The Holder hereby
irrevocably exercises its right to convert such Securities, or the portion
thereof, if any, specified below, into shares of Common Stock and, except to the
extent specified or required as described below, directs that certificates
representing such shares of Common Stock, together with any check in payment for
a fractional share and any Security representing any unconverted principal
amount, be issued and delivered through the facilities of the Depositary, for
credit to the account(s) of the Person(s) indicated below.

         The Holder acknowledges and agrees that no shares of Common Stock will
be delivered upon conversion of the specified Securities until any amount
payable by the Holder on account of interest is paid, any certificates
evidencing specified Securities not held in book-entry form are duly endorsed or
assigned to the Company or in blank and surrendered and any taxes or other
charges or documents required in connection with a transfer on conversion, and
any other required items, are delivered to the Conversion Agent.

         Conversion of the specified Securities is subject to the requirements
established by the Company as well as to the procedures of the Depositary, all
as in effect from time to time. Subject to the provisions of the Indenture, the
specified Securities will be deemed to have been converted as of the close of
business on the first day on which this conversion notice and all other required
items have been delivered to the Conversion Agent as provided above and, upon
such conversion, shall cease to accrue interest or be Outstanding (subject to
the Holder's right to

<PAGE>   92

receive the Common Stock issuable upon such conversion as provided in the
Indenture). Prior to such conversion, the Holder will have no rights in such
shares of Common Stock.

         Please provide the information requested below, as applicable.

1.       PLEASE SPECIFY THE SECURITIES HELD AND THE PORTION THEREOF TO BE
         CONVERTED:

         Principal amount held: $

         CUSIP number(s):

         Depositary (DTC) account where held:

         Principal amount being converted (if less than all):$

2.       UNLESS AND TO THE EXTENT OTHERWISE SPECIFIED BELOW, all Securities
         (together with any unconverted Securities) will be delivered in
         book-entry form to the DTC account specified in Item 1 above.

3.       IF OTHER ARRANGEMENTS ARE DESIRED, please specify the type, number and
         form of securities to be delivered on conversion and the names(s) of
         the account holder(s) or registered owner(s), by checking the
         appropriate boxes and providing the information requested:

         [ ]      Common Stock

                  [ ]      Book-Entry

                           Number of shares of Common Stock:

                           DTC Account:

                  [ ]      Certificates

                           Number of shares of Common Stock:

                           Registered Owner:

         [ ]      Unconverted Securities

                  [ ]      Certificates

                           Principal Amount:  $      *

                           Registered Owner:

                  [ ]      Book-Entry

                           Principal Amount:  $

                           DTC Account:

                                      - 2 -

<PAGE>   93
                  Please sign and date this notice in the space provided below.

         DATE:
                                            -------------------------------
                                                    Name of Holder

                                            -------------------------------
                                                 Signature(s) of Holder
                                                   Title(s):

                                            (If the Holder is a corporation,
                                            partnership or fiduciary, the title
                                            of the Person signing on behalf of
                                            the Holder must be stated.)

----------

*    Aggregate principal amount of each certificate must equal $1,000 or any
     amount in excess thereof in integral multiples of $1,000.

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