Document:

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                                                                   EXHIBIT 4.2

                         REGISTRATION RIGHTS AGREEMENT

         THIS REGISTRATION RIGHTS AGREEMENT, dated as of March __, 2000 (this
"Agreement"), is entered into by and among INTELECT COMMUNICATIONS, INC., a
Delaware corporation, with principal executive offices located at 1100
Executive Drive, Richardson, Texas 75081 (the "Company"), and each of the
entities or individuals identified on Schedule 10(c) hereto (collectively, the
"Investors" and individually an "Investor").

         WHEREAS, upon the terms and subject to the conditions of the
respective Subscription Agreements entered into by and between each Investor
and the Company (collectively, the "Subscription Agreements" and individually a
"Subscription Agreement"), the Company has agreed to issue and sell to the
Investors an aggregate of __________ shares of the Company's common stock, par
value $.01 per share (the "Common Stock"); and

         WHEREAS, to induce the Investors to execute and deliver the
Subscription Agreements, the Company has agreed to provide with respect to the
Registrable Securities (as defined below) certain registration rights under the
Securities Act;

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants contained herein, the parties hereto, intending to be legally bound,
hereby agree as follows:

1.       Definitions.

         (a) As used in this Agreement, the following terms shall have the
         meanings:

                  (i) "Affiliate," of any specified Person means any other
         Person who directly, or indirectly through one or more intermediaries,
         is in control of, is controlled by, or is under common control with,
         such specified Person. For purposes of this definition, control of a
         Person means the power, directly or indirectly, to direct or cause the
         direction of the management and policies of such Person whether by
         contract, securities, ownership or otherwise; and the terms
         "controlling" and "controlled" have the respective meanings correlative
         to the foregoing.

                  (ii) "Commission" means the Securities and Exchange
         Commission.

                  (iii) "Exchange Act" means the Securities Exchange Act of
         1934, as amended, and the rules and regulations of the Commission
         thereunder, or any similar successor statute.

                  (iv) "Final Closing Date" means the date and time of the final
         issuance and sale of the Common Stock pursuant to the Subscription
         Agreements.

                  (v) "Investors" means the Investors and any permitted
         transferee or assignee of Registrable Securities who agrees to become
         bound by all of the terms and provisions of this Agreement and the
         Subscription Agreements.

                  (vi) "Person" means any individual, partnership, corporation,
         limited liability company, joint stock company, association, trust,
         unincorporated organization, or a government or agency or political
         subdivision thereof.

                  (vii) "Prospectus" means the prospectus (excluding any
         preliminary prospectus but including, without limitation, any final
         prospectus filed pursuant to Rule 424(b) under the Securities Act and
         any prospectus that discloses information previously omitted from a
         prospectus filed as part of an effective registration statement in
         reliance

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         on Rule 430A under the Securities Act) included in the Registration
         Statement, as amended or supplemented by any prospectus supplement with
         respect to the terms of the offering of any portion of the Registrable
         Securities covered by the Registration Statement and by all other
         amendments and supplements to such prospectus, including all material
         incorporated by reference in such prospectus and all documents filed
         after the date of such prospectus by the Company under the Exchange Act
         and incorporated by reference therein.

                  (viii) "Public Offering" means an offer registered with the
         Commission and the appropriate state securities commissions by the
         Company of its Common Stock and made pursuant to the Securities Act.

                  (ix) "Registrable Securities" means the shares of Common Stock
         purchased pursuant to the Subscription Agreements; provided, however, a
         share of Common Stock shall cease to be a Registrable Security for
         purposes of this Agreement when it no longer is a Restricted Security.

                  (x) "Registration Statement" means a registration statement of
         the Company filed on an appropriate form under the Securities Act
         providing for the registration of, and the sale on a continuous or
         delayed basis by the holders of, all of the Registrable Securities
         pursuant to Rule 415 under the Securities Act, including the Prospectus
         contained therein and forming a part thereof, any amendments to such
         registration statement and supplements to such Prospectus, and all
         exhibits and other material incorporated by reference in such
         registration statement and Prospectus.

                  (xi) "Restricted Security" means any share of Common Stock
         sold pursuant to the Subscription Agreement except any of those that
         (i) have been registered pursuant to an effective registration
         statement under the Securities Act and sold in a manner contemplated by
         the prospectus included in such registration statement, (ii) have been
         transferred in compliance with the resale provisions of Rule 144 under
         the Securities Act (or any successor provision thereto) or is
         transferable pursuant to paragraph (k) of Rule 144 under the Securities
         Act (or any successor provision thereto), or (iii) otherwise has been
         transferred and a new share of Common Stock not subject to transfer
         restrictions under the Securities Act has been delivered by or on
         behalf of the Company.

                  (xii) "Securities Act" means the Securities Act of 1933, as
         amended, and the rules and regulations of the Commission thereunder, or
         any similar successor statute.

         (b) All capitalized terms used and not defined herein have the
respective meaning assigned to them in the Subscription Agreements.

2.       Registration.

         (a) Filing and Effectiveness of Registration Statement. The Company
shall prepare and file with the Commission not later than 30 days after the
Final Closing Date, a Registration Statement relating to the offer and sale of
the Registrable Securities and shall use its best efforts to cause the
Commission to declare such Registration Statement effective under the Securities
Act as promptly as practicable but not later than 70 days after the Final
Closing Date. The shares of Common Stock underlying warrants issued to Stonegate
Securities, Inc. may be included in the Registration Statement at the option of
the Company. The Company shall notify the Investors by written notice that such
Registration Statement has been declared effective by the Commission within
three (3) business days of such declaration by the Commission.

         (b) Registration Default. If the Registration Statement covering the
Registrable Securities required to be filed by the Company pursuant to Section
2(a) is not (i) filed with the Commission

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within 30 days after the Closing Date or (ii) declared effective by the
Commission within 90 days after the Closing Date (either of which, without
duplication, an "Initial Date"), then the Company shall make the payments to the
Investors as provided in the next sentence as liquidated damages and not as a
penalty. The amount to be paid by the Company to the Investors shall be
determined as of each Computation Date (as defined below), and such amount shall
be equal to 2.5% (the "Liquidated Damage Rate") of the Purchase Price (as
defined in the Subscription Agreements) from the Initial Date to the first
Computation Date and for each Computation Date thereafter, calculated on a pro
rata basis to the date on which the Registration Statement is filed with (in the
event of an Initial Date pursuant to clause (i) above) or declared effective by
(in the event of an Initial Date pursuant to clause (ii) above) the Commission
(the "Periodic Amount") provided, however, that in no event shall the liquidated
damages be less than $25,000. The full Periodic Amount shall be paid by the
Company to the Investors, pro rata, by wire transfer of immediately available
funds within three days after each Computation Date.

         As used in this Section 2(b), "Computation Date" means the date which
is 30 days after the Initial Date and, if the Registration Statement required to
be filed by the Company pursuant to Section 2(a) has not theretofore been
declared effective by the Commission, each date which is 30 days after the
previous Computation Date until such Registration Statement is so declared
effective.

         Notwithstanding the above, if the Registration Statement covering the
Registrable Securities required to be filed by the Company pursuant to Section
2(a) hereof is not filed with the Commission by the 30th day after the Closing
Date, the Company shall be in default of this Registration Rights Agreement, and
the Investors shall be entitled to liquidated damages as set forth above.

         (c) (i) If the Company proposes to register any of its warrants, Common
Stock or any other shares of common stock of the Company under the Securities
Act (other than a registration (A) on Form S-8 or S-4 or any successor or
similar forms, (B) relating to Common Stock or any other shares of common stock
of the Company issuable upon exercise of employee share options or in connection
with any employee benefit or similar plan of the Company or (C) in connection
with a direct or indirect acquisition by the Company of another Person or any
transaction with respect to which Rule 145 (or any successor provision) under
the Securities Act applies), whether or not for sale for its own account, it
will each such time, give prompt written notice at least 20 days prior to the
anticipated filing date of the registration statement relating to such
registration to the Investors, which notice shall set forth such Investors'
rights under this Section 2(c) and shall offer the Investors the opportunity to
include in such registration statement such number of Registrable Securities as
the Investors may request. Upon the written request of an Investor made within
10 days after the receipt of notice from the Company (which request shall
specify the number of Registrable Securities intended to be disposed of by such
Investors), the Company will use its best efforts to effect the registration
under the Securities Act of all Registrable Securities that the Company has been
so requested to register by the Investors, to the extent requisite to permit the
disposition of the Registrable Securities so to be registered; provided,
however, that (A) if such registration involves a Public Offering, the Investors
must sell their Registrable Securities to the underwriters selected as provided
in Section 3(b) hereof on the same terms and conditions as apply to the Company
and (B) if, at any time after giving written notice of its intention to register
any Registrable Securities pursuant to this Section 2(c) and prior to the
effective date of the registration statement filed in connection with such
registration, the Company shall determine for any reason not to register such
Registrable Securities, the Company shall give written notice to the Investors
and, thereupon, shall be relieved of its obligation to register any Registrable
Securities in connection with such registration. The Company's obligations under
this Section 2(c) shall terminate on the date that the registration statement to
be filed in accordance with Section 2(a) is declared effective by the
Commission. (ii) If a registration pursuant to this Section 2(c) involves a
Public Offering and the managing underwriter thereof advises the Company that,
in its view, the number of shares of Common Stock, if any, or other shares of
Common Stock that the Company and the Investors intend to include in such
registration exceeds the largest number of shares of Common Stock (including any
other shares of Common Stock or warrants of the Company) that can be sold
without having an adverse effect on such Public Offering (the "Maximum Offering
Size"), the Company will include in such registration only that number of shares
of Common Stock which does not exceed the Maximum Offering Size, in the
following order of priorities: (1) first, all securities the Company proposes to
sell for its own account (the "Company Shares"), (2) second, up to the full
number of securities proposed to be registered for the

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account of the holders of securities entitled to inclusion of their securities
in the Registration Statement by reason of demand registration rights ("Demand
Shares"), and (3) third, the securities requested to be registered by other
holders of securities entitled to participate in the registration, drawn from
them pro-rata based on the number of shares each has requested to be included in
such registration ("Third Party Shares") and the Investors pursuant to this
Agreement.

         If as a result of the proration provisions of this Section 2(c)(ii),
the Investors are not entitled to include all such Registrable Securities in
such registration, such Investors may elect to withdraw their request to include
any Registrable Securities in such registration.

3.      Obligations of the Company. In connection with the registration of
the Registrable Securities, the Company shall use its reasonable best efforts
to:

         (a) Subject to the provisions of Section 3(r) hereof, promptly (i)
prepare and file with the Commission such amendments (including post-effective
amendments) to the Registration Statement and supplements to the Prospectus as
may be necessary to keep the Registration Statement continuously effective and
in compliance with the provisions of the Securities Act applicable thereto so as
to permit the Prospectus forming part thereof to be current and useable by
Investors for resales of the Registrable Securities for a period of two (2)
years from the date on which the Registration Statement is first declared
effective by the Commission (the "Effective Time") or such shorter period that
will terminate when all the Registrable Securities covered by the Registration
Statement have been sold pursuant thereto in accordance with the plan of
distribution provided in the Prospectus, transferred pursuant to Rule 144 under
the Securities Act or otherwise transferred in a manner that results in the
delivery of new securities not subject to transfer restrictions under the
Securities Act (the "Registration Period") and (ii) take all lawful action such
that each of (A) the Registration Statement and any amendment thereto does not,
when it becomes effective, contain an untrue statement of a material fact or
omit to state a material fact required to be stated therein or necessary to make
the statements therein, not misleading and (B) the Prospectus forming part of
the Registration Statement, and any amendment or supplement thereto, does not at
any time during the Registration Period include an untrue statement of a
material fact or omit to state a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading;

         (b) During the Registration Period, comply with the provisions of the
Securities Act with respect to the Registrable Securities of the Company covered
by the Registration Statement until such time as all of such Registrable
Securities have been disposed of in accordance with the intended methods of
disposition by the Investors as set forth in the Prospectus forming part of the
Registration Statement;

         (c) (i) Prior to the filing with the Commission of any Registration
Statement (including any amendments thereto) and the distribution or delivery of
any Prospectus (including any supplements thereto), provide draft copies thereof
(including a copy of the accountant's consent letter to be included in the
filing) to Stonegate Securities, Inc. and reflect in such documents all such
comments as Stonegate reasonably may propose ("Stonegate"); provided, however,
in the event of a good faith disagreement as to the reasonableness of the
comments or objections of Stonegate, the deadline for filing the Registration
Statement or any amendments or supplements thereto shall be extended for the
period of such bona-fide disagreement, and (ii) furnish to Stonegate for
delivery to each Investor whose Registrable Securities are included in the
Registration Statement, (A) promptly after the same is prepared and publicly
distributed, filed with the Commission, or received by the Company, one copy of
the Registration Statement, each Prospectus, and each amendment or supplement
thereto, and (B) such number of copies of the Prospectus and all amendments and
supplements thereto and such other documents, as such Investor may reasonably
request in order to facilitate the disposition of the Registrable Securities
owned by such Investor;

         (d) (i) Register or qualify the Registrable Securities covered by the
Registration Statement under such securities or "blue sky" laws of such
jurisdictions as the Investors who hold a majority-in-interest of the
Registrable Securities being offered reasonably request, (ii) prepare and file

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in such jurisdictions such amendments (including post-effective amendments) and
supplements to such registrations and qualifications as may be necessary to
maintain the effectiveness thereof at all times during the Registration Period,
(iii) take all such other lawful actions as may be necessary to maintain such
registrations and qualifications in effect at all times during the Registration
Period, and (iv) take all such other lawful actions reasonably necessary or
advisable to qualify the Registrable Securities for sale in such jurisdictions;
provided, however, that the Company shall not be required in connection
therewith or as a condition thereto to (A) qualify to do business in any
jurisdiction where it would not otherwise be required to qualify but for this
Section 3(d), (B) subject itself to general taxation in any such jurisdiction or
(C) file a general consent to service of process in any such jurisdiction;

         (e) As promptly as practicable after becoming aware of such event,
notify each Investor of the occurrence of any event, as a result of which the
Prospectus included in the Registration Statement, as then in effect, includes
an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading, and
promptly prepare an amendment to the Registration Statement and supplement to
the Prospectus to correct such untrue statement or omission, and deliver a
number of copies of such supplement and amendment to each Investor as such
Investor may reasonably request;

         (f) As promptly as practicable after becoming aware of such event,
notify each Investor who holds Registrable Securities being sold (or, in the
event of an underwritten offering, the managing underwriters) of the issuance by
the Commission of any stop order or other suspension of the effectiveness of the
Registration Statement at the earliest possible time and take all lawful action
to effect the withdrawal, recession or removal of such stop order or other
suspension;

         (g) Cause all the Registrable Securities covered by the Registration
Statement to be listed on the principal national securities exchange, and
included in an inter-dealer quotation system of a registered national securities
association, on or in which securities of the same class or series issued by the
Company are then listed or included;

         (h) Maintain a transfer agent and registrar, which may be a single
entity, for the Registrable Securities not later than the effective date of the
Registration Statement;

         (i) Cooperate with the Investors who hold Registrable Securities being
offered to facilitate the timely preparation and delivery of certificates for
the Registrable Securities to be offered pursuant to the registration statement
and enable such certificates for the Registrable Securities to be in such
denominations or amounts, as the case may be, as the Investors reasonably may
request and registered in such names as the Investor may request; and, within
three business days after a registration statement which includes Registrable
Securities is declared effective by the Commission, deliver and cause legal
counsel selected by the Company to deliver to the transfer agent for the
Registrable Securities (with copies to the Investors whose Registrable
Securities are included in such registration statement) an appropriate
instruction and, to the extent necessary, an opinion of such counsel;

         (j) Take all such other lawful actions reasonably necessary to expedite
and facilitate the disposition by the Investors of their Registrable Securities
in accordance with the intended methods therefor provided in the Prospectus
which are customary under the circumstances;

         (k) Make generally available to its security holders as soon as
practicable, but in any event not later than three (3) months after (i) the
effective date (as defined in Rule 158(c) under the Securities Act) of the
Registration Statement, and (ii) the effective date of each post- effective
amendment to the Registration Statement, as the case may be, an earnings
statement of the Company and its subsidiaries complying with Section 11(a) of
the Securities Act and the rules and regulations of the Commission thereunder
(including, at the option of the Company, Rule 158);

         (l) In the event of an underwritten offering, promptly include or
incorporate in a Prospectus supplement or post-effective amendment to the
Registration Statement such information as the

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managers reasonably agree should be included therein and to which the Company
does not reasonably object and make all required filings of such Prospectus
supplement or post-effective amendment as soon as practicable after it is
notified of the matters to be included or incorporated in such Prospectus
supplement or post-effective amendment;

         (m) In connection with any underwritten offering, make such
representations and warranties to the Investors participating in such
underwritten offering and to the managers, in form, substance and scope as are
customarily made by the Company to underwriters in secondary underwritten
offerings;

         (n) In connection with any underwritten offering, obtain opinions of
counsel to the Company (which counsel and opinions (in form, scope and
substance) shall be reasonably satisfactory to the managers) addressed to the
underwriters, covering such matters as are customarily covered in opinions
requested in secondary underwritten offerings (it being agreed that the matters
to be covered by such opinions shall include, without limitation, as of the date
of the opinion and as of the Effective Time of the Registration Statement or
most recent post- effective amendment thereto, as the case may be, the absence
from the Registration Statement and the Prospectus, including any documents
incorporated by reference therein, of an untrue statement of a material fact or
the omission of a material fact required to be stated therein or necessary to
make the statements therein (in the case of the Prospectus, in light of the
circumstances under which they were made) not misleading, subject to customary
limitations);

         (o) In connection with any underwritten offering, obtain "cold comfort"
letters and updates thereof from the independent public accountants of the
Company (and, if necessary, from the independent public accountants of any
subsidiary of the Company or of any business acquired by the Company, in each
case for which financial statements and financial data are, or are required to
be, included in the Registration Statement), addressed to each underwriter
participating in such underwritten offering (if such underwriter has provided
such letter, representations or documentation, if any, required for such cold
comfort letter to be so addressed), in customary form and covering matters of
the type customarily covered in "cold comfort" letters in connection with
secondary underwritten offerings;

         (p) In connection with any underwritten offering, deliver such
documents and certificates as may be reasonably required by the managers, if
any; and

         (q) In the event that any broker-dealer registered under the Exchange
Act shall be an "Affiliate" (as defined in Rule 2729(b)(1) of the rules and
regulations of the National Association of Securities Dealers, Inc. (the "NASD
Rules") (or any successor provision thereto)) of the Company or has a "conflict
of interest" (as defined in Rule 2720(b)(7) of the NASD Rules (or any successor
provision thereto)) and such broker-dealer shall underwrite, participate as a
member of an underwriting syndicate or selling group or assist in the
distribution of any Registrable Securities covered by the Registration
Statement, whether as a holder of such Registrable Securities or as an
underwriter, a placement or sales agent or a broker or dealer in respect
thereof, or otherwise, the Company shall assist such broker-dealer in complying
with the requirements of the NASD Rules, including, without limitation, by (A)
engaging a "qualified independent underwriter" (as defined in Rule 2720(b)(15)
of the NASD Rules (or any successor provision thereto)) to participate in the
preparation of the Registration Statement relating to such Registrable
Securities, to exercise usual standards of due diligence in respect thereof and
to recommend the public offering price of such Registrable Securities, (B)
indemnifying such qualified independent underwriter to the extent of the
indemnification of underwriters provided in Section 5 hereof, and (C) providing
such information to such broker- dealer as may be required in order for such
broker-dealer to comply with the requirements of the NASD Rules.

         (r) Notwithstanding anything to the contrary in Section 3, at any time
after the Registration Statement has been declared effective, the Company may
delay the disclosure of material non-public information concerning the Company
the disclosure of which at the time is not, in the good faith opinion of the
Company and its counsel, in the best interest of the Company (a "Grace Period");
provided, that the Company shall promptly (i) notify the Investors in writing of
the existence of material non-public

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information giving rise to a Grace Period and the date on which the Grace Period
will begin, and (ii) notify the Investors in writing of the date on which the
Grace Period ends; and, provided further, that during any consecutive 365 day
period, there shall be only two Grace Periods, such Grace Periods not to exceed
30 days (an "Allowable Grace Period"). For purposes of determining the length of
a Grace Period above, the Grace Period shall begin on and include the date the
holders receive the notice referred to in clause (i) and shall end on and
include the date the holders receive the notice referred to in clause (ii).

4.       Obligations of the Investors. In connection with the registration of
the Registrable Securities, the Investors shall have the following obligations:

         (a) It shall be a condition precedent to the obligations of the Company
to complete the registration pursuant to this Agreement with respect to the
Registrable Securities of a particular Investor that such Investor shall furnish
to the Company such information regarding itself, the Registrable Securities
held by it and the intended method of disposition of the Registrable Securities
held by it as shall be reasonably required to effect the registration of such
Registrable Securities and shall execute such documents in connection with such
registration as the Company may reasonably request. As least four (4) business
days prior to the first anticipated filing date of the Registration Statement,
the Company shall notify each Investor of the information the Company requires
from each such Investor (the "Requested Information") if such Investor elects to
have any of its Registrable Securities included in the Registration Statement.
If at least two business days prior to the anticipated filing date the Company
has not received the Requested Information from an Investor (a "Non-Responsive
Investor"), then the Company may file the Registration Statement without
including Registrable Securities of such Non-Responsive Investor and have no
further registration obligations to the Non-Responsive Investor;

         (b) Each Investor by its acceptance of the Registrable Securities
agrees to cooperate with the Company in connection with the preparation and
filing of the Registration Statement hereunder, unless such Investor has
notified the Company in writing of its election to exclude all of its
Registrable Securities from the Registration Statement; and

         (c) As promptly as practicable after becoming aware of such event,
notify the Company of the occurrence of any event, as a result of which the
Prospectus included in the Registration Statement, as then in effect, includes
an untrue statement of a material fact or omits to state a material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading;

         (d) Each Investor agrees that, upon receipt of any notice from the
Company of the occurrence of any event of the kind described in Section 3(e) or
3(f), it shall immediately discontinue its disposition of Registrable Securities
pursuant to the Registration Statement covering such Registrable Securities
until such Investor's receipt of the copies of the supplemented or amended
Prospectus contemplated by Section 3(e) and, if so directed by the Company, such
Investor shall deliver to the Company (at the expense of the Company) or destroy
(and deliver to the Company a certificate of destruction) all copies in such
Investor's possession, of the Prospectus covering such Registrable Securities
current at the time of receipt of such notice.

5.       Expenses of Registration. All expenses, other than underwriting
discounts and commissions, incurred in connection with registrations, filings or
qualifications pursuant to Section 3, but including, without limitation, all
registration, listing, and qualifications fees, printing and engraving fees,
accounting fees, and the fees and disbursements of counsel for the Company, and
the reasonable fees, not to exceed $5,000.00, of one firm of counsel to the
holders of a majority in interest of the Registrable Securities shall be borne
by the Company.

6.       Indemnification and Contribution.

         (a) The Company shall indemnify and hold harmless each Investor and
each underwriter, if any, which facilitates the disposition of Registrable
Securities, and each of their respective

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officers and directors and each person who controls such Investor or underwriter
within the meaning of Section 15 of the Securities Act or Section 20 of the
Exchange Act (each such person being sometimes hereinafter referred to as an
"Indemnified Person") from and against any losses, claims, damages or
liabilities, joint or several, to which such Indemnified Person may become
subject under the Securities Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in any Registration Statement or an omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements therein, not misleading, or arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in any
Prospectus or an omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein, in
the light of the circumstances under which they were made, not misleading; and
the Company hereby agrees to reimburse such Indemnified Person for all
reasonable legal and other expenses incurred by them in connection with
investigating or defending any such action or claim as and when such expenses
are incurred; provided, however, that the Company shall not be liable to any
such Indemnified Person in any such case to the extent that any such loss,
claim, damage or liability arises out of or is based upon (i) an untrue
statement or alleged untrue statement made in, or an omission or alleged
omission from, such Registration Statement or Prospectus in reliance upon and in
conformity with written information furnished to the Company by such Indemnified
Person expressly for use therein or (ii) in the case of the occurrence of an
event of the type specified in Section 3(e), the use by the Indemnified Person
of an outdated or defective Prospectus after the Company has provided to such
Indemnified Person written notice that such Prospectus is outdated or defective.

         (b) Indemnification by the Investors and Underwriters. Each Investor
agrees, as a consequence of the inclusion of any of its Registrable Securities
in a Registration Statement, and each underwriter, if any, which facilitates the
disposition of Registrable Securities shall agree, as a consequence of
facilitating such disposition of Registrable Securities, severally and not
jointly, to (i) indemnify and hold harmless the Company, its directors
(including any person who, with his or her consent, is named in the Registration
Statement as a director nominee of the Company), its officers and each person,
if any, who controls the Company within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act, against any losses, claims,
damages or liabilities to which the Company or such other persons may become
subject, under the Securities Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in such Registration Statement or Prospectus or arise out of or are
based upon the omission or alleged omission to state therein a material fact
required to be stated therein or necessary to make the statements therein (in
light of the circumstances under which they were made, in the case of the
Prospectus), not misleading, in each case to the extent, but only to the extent,
that such untrue statement or alleged untrue statement or omission or alleged
omission was made in reliance upon and in conformity with written information
furnished to the Company by such holder or underwriter expressly for use
therein; provided, however, that no Investor or underwriter shall be liable
under this Section 6(b) for any amount in excess of the gross proceeds paid to
such Investor or underwriter in respect of shares sold by it, and (ii) reimburse
the Company for any legal or other expenses incurred by the Company in
connection with investigating or defending any such action or claim as such
expenses are incurred.

         (c) Notice of Claims, etc. Promptly after receipt by a party seeking
indemnification pursuant to this Section 6 (an "Indemnified Party") of written
notice of any investigation, claim, proceeding or other action in respect of
which indemnification is being sought (each, a "Claim"), the Indemnified Party
promptly shall notify the party against whom indemnification pursuant to this
Section 6 is being sought (the "Indemnifying Party") of the commencement
thereof; but the omission to so notify the Indemnifying Party shall not relieve
it from any liability that it otherwise may have to the Indemnified Party,
except to the extent that the Indemnifying Party is materially prejudiced and
forfeits substantive rights and defenses by reason of such failure. In
connection with any Claim as to which both the Indemnifying Party and the
Indemnified Party are parties, the Indemnifying Party shall be entitled to
assume the defense thereof. Notwithstanding the assumption of the defense of any
Claim by the Indemnifying Party, the Indemnified Party shall have the right to
employ separate legal counsel and to participate in the defense of such Claim,
and the Indemnifying Party shall bear the reasonable fees, out-of-pocket costs
and expenses of such

                                       8
<PAGE>   9

separate legal counsel to the Indemnified Party if (and only if): (x) the
Indemnifying Party shall have agreed to pay such fees, costs and expenses, (y)
the Indemnified Party and the Indemnifying Party shall reasonably have concluded
that representation of the Indemnified Party by the Indemnifying Party by the
same legal counsel would not be appropriate due to actual or, as reasonably
determined by legal counsel to the Indemnified Party, potentially differing
interests between such parties in the conduct of the defense of such Claim, or
if there may be legal defenses available to the Indemnified Party that are in
addition to or disparate from those available to the Indemnifying Party, or (z)
the Indemnifying Party shall have failed to employ legal counsel reasonably
satisfactory to the Indemnified Party within a reasonable period of time after
notice of the commencement of such Claim. If the Indemnified Party employs
separate legal counsel in circumstances other than as described in clauses (x),
(y) or (z) above, the fees, costs and expenses of such legal counsel shall be
borne exclusively by the Indemnified Party. Except as provided above, the
Indemnifying Party shall not, in connection with any Claim in the same
jurisdiction, be liable for the fees and expenses of more than one firm of
counsel for the Indemnified Party (together with appropriate local counsel). The
Indemnified Party shall not, without the prior written consent of the
Indemnifying Party (which consent shall not unreasonably be withheld), settle or
compromise any Claim or consent to the entry of any judgment that does not
include an unconditional release of the Indemnifying Party from all liabilities
with respect to such Claim or judgment.

         (d) Contribution. If the indemnification provided for in this Section 6
is unavailable to or insufficient to hold harmless an Indemnified Person under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
Indemnifying Party shall contribute to the amount paid or payable by such
Indemnified Party as a result of such losses, claims, damages or liabilities (or
actions in respect thereof) in such proportion as is appropriate to reflect the
relative fault of the Indemnifying Party and the Indemnified Party in connection
with the statements or omissions which resulted in such losses, claims, damages
or liabilities (or actions in respect thereof), as well as any other relevant
equitable considerations. The relative fault of such Indemnifying Party and
Indemnified Party shall be determined by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or omission or
alleged omission to state a material fact relates to information supplied by
such Indemnifying Party or by such Indemnified Party, and the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
such statement or omission. The parties hereto agree that it would not be just
and equitable if contribution pursuant to this Section 6(d) were determined by
pro rata allocation (even if the Investors or any underwriters were treated as
one entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to in this Section 6(d).
The amount paid or payable by an Indemnified Party as a result of the losses,
claims, damages or liabilities (or actions in respect thereof) referred to above
shall be deemed to include any legal or other fees or expenses reasonably
incurred by such Indemnified Party in connection with investigating or defending
any such action or claim. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. The obligations of the Investors and any underwriters in this
Section 6(d) to contribute shall be several in proportion to the percentage of
Registrable Securities registered or underwritten, as the case may be, by them
and not joint.

         (e) Notwithstanding any other provision of this Section 6, in no event
shall any (i) Investor be required to undertake liability to any person under
this Section 6 for any amounts in excess of the dollar amount of the gross
proceeds to be received by such Investor from the sale of such Investor's
Registrable Securities pursuant to any Registration Statement under which such
Registrable Securities are to be registered under the Securities Act.

         (f) The obligations of the Company under this Section 6 shall be in
addition to any liability which the Company may otherwise have to any
Indemnified Person and the obligations of any Indemnified Person under this
Section 6 shall be in addition to any liability which such Indemnified Person
may otherwise have to the Company. The remedies provided in this Section 6 are
not exclusive and shall not limit any rights or remedies which may otherwise be
available to an indemnified party at law or in equity.

                                       9

<PAGE>   10

7.       Rule 144. With a view to making available to the Investors the
benefits of Rule 144 under the Securities Act or any other similar rule or
regulation of the Commission that may at any time permit the Investors to sell
securities of the Company to the public without registration ("Rule 144"), the
Company agrees to use its best efforts to:

         (a) comply with the provisions of paragraph (c) (1) of Rule 144; and

         (b) file with the Commission in a timely manner all reports and other
documents required to be filed by the Company pursuant to Section 13 or 15(d)
under the Exchange Act; and, if at any time it is not required to file such
reports but in the past had been required to or did file such reports, it will,
upon the request of any Investor, make available other information as required
by, and so long as necessary to permit sales of, its Registrable Securities
pursuant to Rule 144.

8.       Assignment. The rights to have the Company register Registrable
Securities pursuant to this Agreement may be assigned or transferred only with
the prior written consent of the Company, and any such assignment or transfer
without such consent shall be void and of no effect. In the event of any such
permitted assignment or transfer by the Investors to any permitted transferee of
all or any portion of such Registrable Securities such transfer will be allowed
only if: (a) the Investor agrees in writing with the transferee or assignee to
assign such rights, and a copy of such agreement is furnished to the Company
within a reasonable time after such assignment, (b) the Company is, within a
reasonable time after such transfer or assignment, furnished with written notice
of (i) the name and address of such transferee or assignee and (ii) the
securities with respect to which such registration rights are being transferred
or assigned, (c) immediately following such transfer or assignment, the
securities so transferred or assigned to the transferee or assignee constitute
Restricted Securities, and (d) at or before the time the Company received the
written notice contemplated by clause (b) of this sentence the transferee or
assignee agrees in writing with the Company to be bound by all of the provisions
contained herein.

9.       Amendment and Waiver. Any provision of this Agreement may be amended
and the observance thereof may be waived (either generally or in a particular
instance and either retroactively or prospectively), only with the written
consent of the Company and Investors who hold a majority- in-interest of the
Registrable Securities. Any amendment or waiver effected in accordance with this
Section 9 shall be binding upon each Investor and the Company.

10.      Miscellaneous.

         (a) A person or entity shall be deemed to be a holder of Registrable
Securities whenever such person or entity owns of record such Registrable
Securities. If the Company receives conflicting instructions, notices or
elections from two or more persons or entities with respect to the same
Registrable Securities, the Company shall act upon the basis of instructions,
notice or election received from the registered owner of such Registrable
Securities.

         (b) If after the date hereof and prior to the Commission declaring the
Registration Statement to be filed pursuant to Section 2(a) effective under the
Securities Act, the Company grants to any Person any registration rights with
respect to any Company securities which are more favorable to such other Person
than those provided in this Agreement, then the Company forthwith shall grant
(by means of an amendment to this Agreement or otherwise) identical registration
rights to all Investors hereunder.

         (c) Except as may be otherwise provided herein, any notice or other
communication or delivery required or permitted hereunder shall be in writing
and shall be delivered personally or sent by certified mail, postage prepaid, or
by a nationally recognized overnight courier service, and shall be deemed given
when so delivered personally or by overnight courier service, or, if mailed,
three days after the date of deposit in the United States mails, as follows:

                                       10
<PAGE>   11

             if to the Company, to:

                      Intelect Communications, Inc.
                      1100 Executive Drive
                      Richardson, Texas  75081
                      Phone: (972) 367-2100
                      Attention:  Chief Executive Officer

             with a copy to:

                      Ryan & Sudan, L. L. P.
                      909 Fannin, Suite 3900
                      Houston, Texas  77010
                      Attention:  Michael T. Larkin

             if to the Investors, to:

                      Each individual or entity identified on Schedule
                      10(c) attached hereto

             With a copy to:

                      Stonegate Securities, Inc.
                      500 Crescent Court, Suite 270
                      Dallas, Texas 75201
                      Phone: (214) 871-6939
                      Fax: (214) 871-6940
                      Attention: Jesse Shelmire

         If to any other Investor, at such address as such Investor shall have
provided in writing to the Company.

         The Company or any Investor may change the foregoing address by notice
given pursuant to this Section 10(c).

         (d) Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

         (e) This Agreement shall be governed by and interpreted in accordance
with the laws of the State of Texas. Each of the parties consents to the
jurisdiction of the federal courts whose districts encompass any part of the
City of Dallas or the state courts of the State of Texas sitting in the City of
Dallas in connection with any dispute arising under this Agreement and hereby
waives, to the maximum extent permitted by law, any objection including any
objection based on forum non conveniens, to the bringing of any such proceeding
in such jurisdictions.

         (f) The remedies provided in this Agreement are cumulative and not
exclusive of any remedies provided by law. If any term, provision, covenant or
restriction of this Agreement is held by

                                       11
<PAGE>   12

a court of competent jurisdiction to be invalid, illegal, void or unenforceable,
the remainder of the terms, provisions, covenants and restrictions set forth
herein shall remain in full force and effect and shall in no way be affected,
impaired or invalidated, and the parties hereto shall use their best efforts to
find and employ an alternative means to achieve the same or substantially the
same result as that contemplated by such term, provision, covenant or
restriction. It is hereby stipulated and declared to be the intention of the
parties that they would have executed the remaining terms, provisions, covenants
and restrictions without including any of such that may be hereafter declared
invalid, illegal, void or unenforceable.

         (g) The Company shall not enter into any agreement with respect to its
securities that is inconsistent with the rights granted to the holders of
Registrable Securities in this Agreement or otherwise conflicts with the
provisions hereof. The Company is not currently a party to any agreement
granting any registration rights with respect to any of its securities to any
person which conflicts with the Company's obligations hereunder or gives any
other party the right to include any securities in any Registration Statement
filed pursuant hereto, except for such rights and conflicts as have been
irrevocably waived. Without limiting the generality of the foregoing, without
the written consent of the holders of a majority in interest of the Registrable
Securities, the Company shall not grant to any person the right to request it to
register any of its securities under the Securities Act unless the rights so
granted are pari pasu to the prior rights of the holders of Registrable
Securities set forth herein, and are not otherwise in conflict or inconsistent
with the provisions of this Agreement. The restrictions on the Company's rights
to grant registration rights under this paragraph shall terminate on the date
the Registration Statement to be filed pursuant to Section 2(a) is declared
effective by the Commission.

         (h) This Agreement and the Subscription Agreements constitute the
entire agreement among the parties hereto with respect to the subject matter
hereof. There are no restrictions, promises, warranties or undertakings, other
than those set forth or referred to herein. This Agreement and the Subscription
Agreements supersede all prior agreements and undertakings among the parties
hereto with respect to the subject matter hereof.

         (i) Subject to the requirements of Section 8 hereof, this Agreement
shall inure to the benefit of and be binding upon the successors and assigns of
each of the parties hereto.

         (j) All pronouns and any variations thereof refer to the masculine,
feminine or neuter, singular or plural, as the context may require.

         (k) The headings in this Agreement are for convenience of reference
only and shall not limit or otherwise affect the meaning thereof.

         (l) The Company acknowledges that any failure by the Company to perform
its obligations under Section 3, or any delay in such performance could result
in direct damages to the Investors and the Company agrees that, in addition to
any other liability the Company may have by reason of any such failure or delay,
the Company may be liable for all direct damages caused by such failure or
delay.

         (m) This Agreement may be executed in two or more counterparts, each of
which shall be deemed an original but all of which shall constitute one and the
same agreement. A facsimile transmission of this signed Agreement shall be legal
and binding on all parties hereto.

                                       12
<PAGE>   13

         IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered as of the date first above written.

                           INTELECT COMMUNICATIONS, INC.

                           By:_________________________________________________

                           Name:_______________________________________________
                           Title:______________________________________________

                           INVESTORS: [See attached signature page]

                                       13
<PAGE>   14

                            INVESTOR SIGNATURE PAGE

          Investor Name:________________________________________________________

                                                    By:________________________

                                                    Its:_______________________<PAGE>   1
                                                                     EXHIBIT 4.3

                  CERTIFICATE OF DESIGNATIONS, PREFERENCES AND
             RELATIVE RIGHTS OF SERIES A CONVERTIBLE PREFERRED STOCK
                                       OF
                               BROADBANDNOW, INC.
                                December 16, 1999

                         Pursuant to Section 151 of the
                General Corporation Law of the State of Delaware

         BroadbandNOW, Inc. (the "CORPORATION"), a corporation organized and
existing under the General Corporation Law of the State of Delaware, does hereby
certify that, pursuant to authority conferred upon the Board of Directors of the
Corporation by ARTICLE III of its Certificate of Incorporation, as amended
(hereinafter referred to as the "CERTIFICATE OF INCORPORATION"), and pursuant to
the provisions of Section 151 of the General Corporation Law of the State of
Delaware, the Board of Directors, by unanimous written consent dated as of
December 16, 1999, duly approved and adopted the following resolution (the
"RESOLUTION"):

         RESOLVED, that, pursuant to the authority vested in the Board of
Directors of the Corporation by ARTICLE III of its Certificate of Incorporation,
the Board of Directors does hereby create, authorize and provide for the
issuance of Series A Preferred Stock, $0.001 par value, with a liquidation
preference of $18.80 per share, consisting of Six Million Nine Hundred Thousand
(6,900,000) shares, having the designations, preferences, relative,
participating, optional and other special rights and the qualifications,
limitations and restrictions thereof that are set forth in the Certificate of
Incorporation and in this Resolution as follows:

     1. NUMBER OF SHARES. The shares of the initial series of preferred stock
shall be designated "Series A Convertible Preferred Stock" (the "PREFERRED
STOCK"), and the number of shares of the Preferred Stock which may be issued
shall be Six Million Nine Hundred Thousand (6,900,000). The Board of Directors
may authorize the issuance of up to 4,893,617 shares of the 6,900,000 authorized
shares of the Preferred Stock (i) in consideration for cash payments to the
Corporation or (ii) upon consummation of the merger of BBNW Merger Sub, Inc., a
Texas corporation ("MERGER SUB"), with and into I 3S, Inc., a Texas corporation
("I 3S TEXAS") to the former I 3S Texas holders of shares of preferred stock
upon the conversion of such shares into shares of Preferred Stock or the right
to receive Preferred Stock pursuant to the terms of said merger. The remaining
2,006,383 shares of Preferred Stock may only be issued by the Corporation as
in-kind dividends on previously issued shares of the Preferred Stock in
accordance with SUBSECTION 2.1.1 below.

<PAGE>   2

     2. PREFERRED STOCK. The  designations,  preferences,  limitations,
relative rights and privileges in respect of the Preferred Stock are as follows:

         2.1 DIVIDENDS.

                  2.1.1 The holders of Preferred Stock shall be entitled to
receive semi-annual dividends, out of funds legally available therefor, at a
rate per share (the "DIVIDEND RATE") equal to the greater of (a) $1.504 per
annum per share (said dividend to be appropriately adjusted for stock divisions,
dividends, combinations, recapitalizations and reclassifications), or (b) if a
dividend (other than a dividend payable in shares of Common Stock) is declared
during such semi-annual period on the Common Stock (or any class thereof),
subject to the approval or consent of the holders of the Preferred Stock as
provided in SECTION 2.2 hereof, an amount per share equal to the aggregate
amount of dividends declared with respect to that number of shares of the Common
Stock into which the Preferred Stock then outstanding shall then be convertible
pursuant to SECTION 2.5 hereof, divided by the number of shares of the Preferred
Stock then outstanding. Such dividends shall be fully cumulative, prior and in
preference to any declaration or payment of any dividend or other distribution
on any other class or series of capital stock of the Corporation but shall be
payable only when, as and if declared by the Board of Directors of the
Corporation out of funds legally available for the payment of dividends.
Payments of dividends shall be made in arrears, at the election of the
Corporation, (i) in cash or (ii) in kind in the form of additional shares of
Preferred Stock, provided, however, that all accrued but unpaid dividends on the
Preferred Stock must be paid, in arrears, in cash, before payment of any cash
dividends on any other series or class of capital stock of the Corporation.

         Semi-annual dividend periods (each a "SEMI-ANNUAL DIVIDEND PERIOD")
shall commence on January 1 and July 1, in each year, except that the first
Semi-annual Dividend Period shall commence on the date of issuance of the
Preferred Stock, and shall end on and include the day immediately preceding the
first day of the next Semi-annual Dividend Period. Dividends on the shares of
Preferred Stock shall be payable on January 1 and July 1 of each year (a
"DIVIDEND PAYMENT DATE"), commencing July 1, 1999; provided, however, that no
obligation to pay a dividend shall exist until such dividends are declared by
the Board of Directors. Each such dividend shall be paid to the holders of
record of the Preferred Stock as they shall appear on the stock register of the
Corporation on such record date, not exceeding 45 days preceding such Dividend
Payment Date, as shall be fixed by the Board of Directors of the Corporation or
a duly authorized committee thereof.

         If, on any Dividend Payment Date, all accrued and unpaid dividends
provided for in this SECTION 2.1 are not paid to the holders of the Preferred
Stock (whether declared or undeclared), whether in cash or in additional shares
of Preferred Stock, then such dividends shall cumulate with additional dividends
thereon, compounded semi-annually, at the dividend rate applicable to the
Preferred Stock as provided in this SECTION 2.1, for each succeeding full
Semi-annual Dividend Period during which such dividends shall remain unpaid. In
the event the Corporation elects to pay dividends in additional shares of
Preferred Stock, the Corporation shall on the Dividend Payment Date deliver to
the holders certificates representing such shares.

<PAGE>   3

         Notwithstanding anything to the contrary in this Certificate of
Designation, in the event any conversion (including into Class A Common Stock),
redemption or liquidation occurs as of a date other than on a Dividend Payment
Date, the holder of Preferred Stock shall be paid, out of funds legally
available therefor, a pro rata dividend equal to the dividend payable for that
Semi-annual Dividend Period multiplied by a fraction, the numerator of which is
the number of days that have elapsed since the last Dividend Payment Date and
the denominator of which is the number of days in the Semi-annual Dividend
Period in which the conversion, redemption or liquidation occurs.

         If the Corporation elects to pay a dividend on the Preferred Stock in
kind in the form of additional shares of Preferred Stock, the Corporation shall
issue and deliver to each holder of the shares of Preferred Stock in lieu of,
and in full satisfaction of, any dividends not paid in cash, additional shares
of Preferred Stock with an aggregate Liquidation Preference equal to the
dividend not paid in cash, with any fractional share owing such holder of shares
of Preferred Stock to be held by the Corporation and paid in the form of a whole
share when any fractional shares owed to such holder of the shares of Preferred
Stock equal at least one whole share and any such fractional shares thereafter
to be held and accounted for by the Corporation in accordance with generally
accepted accounting principles until paid as a whole share or shares.

                  2.1.2 The amount of any dividends accrued on any share of the
Preferred Stock on any Dividend Payment Date shall be deemed to be the amount of
any unpaid dividends accumulated thereon to and including such Dividend Payment
Date, whether or not earned or declared. The amount of dividends accrued on any
share of the Preferred Stock on any date other than a Dividend Payment Date
shall be deemed to be the sum of (i) the amount of any unpaid dividends
accumulated thereon to and including the last preceding Dividend Payment Date,
whether or not earned or declared, and (ii) an amount determined by multiplying
(x) the Dividend Rate by (y) a fraction, the numerator of which shall be the
number of days from the last preceding Dividend Payment Date to and including
the date on which such calculation is made and the denominator of which shall be
the full number of days in such Semi-annual Dividend Period.

                  2.1.3 Immediately prior to authorizing or making any
distribution in redemption or liquidation with respect to the Preferred Stock
(other than a purchase or acquisition of Preferred Stock pursuant to a purchase
or exchange offer made on the same terms to holders of all outstanding Preferred
Stock), the Board of Directors shall, to the extent of any funds legally
available therefor, declare a dividend in cash on the Preferred Stock payable on
the distribution date in an amount equal to any accrued and unpaid dividends on
the Preferred Stock as of such date.

                  2.1.4 In the event there have been any accrued and unpaid
dividends on the Preferred Stock at the time of the consummation of an Approved
Offering, the Corporation shall first pay in cash all accrued and unpaid
dividends (together with any dividends calculated through the date of
consummation of the Approved Offering) on the Preferred Stock from the proceeds
from the Approved Offering.

<PAGE>   4

                  2.1.5 Except as provided under SUBSECTION 2.1.6 or SECTION
2.4, the Corporation shall not declare or pay any dividend or make any other
distribution on any shares of Parity Stock or Junior Stock (other than dividends
payable in Parity Stock or Junior Stock, as the case may be, to holders thereof)
or purchase, redeem or otherwise acquire for consideration any shares of Parity
Stock or Junior Stock, unless all aggregate accrued dividends on all outstanding
shares of Preferred Stock shall have been paid for all past periods.

                  2.1.6 If any dividends shall have been declared but not paid
in full or funds set apart for payment in full on the payment date for such
dividends on the outstanding shares of the Preferred Stock and any Parity Stock
that is equal in rank as to dividends, then, to the extent any dividends are
thereafter paid or set apart for payment on the outstanding shares of the
Preferred Stock or such Parity Stock, the money for such payment or so set aside
shall be shared ratably by the holders of the outstanding shares of the
Preferred Stock and the holders of the outstanding Parity Stock in proportion to
the respective unpaid dividends.

                  2.1.7 All accumulated and unpaid dividends on the Series A
Convertible Preferred Stock of I 3S Texas that, upon the merger of Merger Sub
with and into I 3S Texas, are to be cancelled and converted into the right to
receive an equal number of shares of Preferred Stock, shall be deemed to be
accumulated and unpaid dividends on such shares of Preferred Stock. Dividends on
each outstanding share of Preferred Stock shall accumulate from the date of
original issuance of the share of the preferred stock of I 3S Texas in exchange
for which such share of Preferred Stock is originally issued.

         2.2 VOTING RIGHTS.

                  2.2.1 The holders of Preferred Stock shall have no voting
rights whatsoever, except as set forth below in SUBSECTION 2.2.2 or as otherwise
existing under applicable law.

                  2.2.2 So long as any shares of Preferred Stock are
outstanding, the Corporation shall not, without first obtaining the approval (by
vote or written consent) of the holders of at least a majority of the shares of
Preferred Stock then outstanding, voting as a separate class, take any action
to:

                           2.2.2.1 approve an agreement or plan of merger or
consolidation or conversion under which the Corporation is to merge or
consolidate with or into any other corporation or convert into any other
business entity;

                           2.2.2.2 approve any sale or transfer of all or
substantially all of the assets of the Corporation;

                           2.2.2.3 create, authorize or issue any share of any
series or class of Prior Stock or Parity Stock, including the issuance of any
debt securities, stock or other security convertible into any class or series of
Prior Stock or Parity Stock;

<PAGE>   5

                           2.2.2.4 repurchase, redeem or retire any shares of
Preferred Stock or Parity Stock except pursuant to any provision of this
Certificate of Designation;

                           2.2.2.5 repurchase, redeem or retire any shares of
Common Stock or Junior Stock;

                           2.2.2.6 amend, alter or repeal any of the provisions
of the Certificate of Incorporation or this Certificate of Designation, if such
amendment, alteration or repeal would adversely affect any privilege,
preference, right or power of the Preferred Stock or the holders thereof;

                           2.2.2.7 increase or decrease the authorized number of
shares of Preferred Stock; or

                           2.2.2.8 authorize or pay any dividend or other
distribution (other than dividends payable to the holders of Preferred Stock as
contemplated by SUBSECTION 2.1.1 and dividends on the Class A Common Stock
payable in additional shares of Class A Common Stock) with respect to the
Preferred Stock or the Common Stock.

                  2.2.3 In addition to the special voting rights provided in
SUBSECTION 2.2.2 above, the holders of the Preferred Stock shall also have the
right to vote as a separate class on any matter if required by the General
Corporation Law of the State of Delaware or any successor statute.

        2.3 PREEMPTIVE RIGHTS. The holders of the Preferred Stock shall have the
preemptive right to subscribe for any and all issuances of (i) Common Stock or
other equity securities of the Corporation; (ii) options to purchase or rights
to subscribe for Common Stock or other equity securities of the Corporation;
(iii) securities convertible into or exchangeable for Common Stock or other
equity securities of the Corporation; and (iv) options to purchase or rights to
subscribe for such convertible or exchangeable securities; provided that, the
holders of the Preferred Stock shall not have a preemptive right to subscribe
for (i) Compensatory Securities (as adjusted to provide for any dividends, stock
distributions, splits, combinations or recapitalization), (ii) securities to be
issued in connection with a merger, an acquisition or an offering for property
interests (other than cash or new deferred payment obligations), (iii)
securities to be issued upon the conversion of previously outstanding
convertible securities, (iv) securities to be issued pursuant to SECTION 2.1 and
(v) securities to be issued in an Approved Offering, or where the preemptive
rights have been waived by a majority of the Preferred Stock then outstanding.
In the event the Corporation shall propose to issue any securities with respect
to which the holders of the Preferred Stock have the preemptive rights set forth
above, the Corporation shall first make an offering of Preferred Stock in
accordance with the following provisions.

                  2.3.1 The Corporation shall deliver a notice by certified mail
(the "PREEMPTION NOTICE") to the holders of Preferred Stock stating (i) its bona
fide intention to offer such shares or other securities, (ii) the number of such
shares or other securities to be offered, and (iii) the price and all material
terms, if any, upon which it proposes to offer such shares or

<PAGE>   6

other securities. Such notice shall be given at the addresses of the holders as
reflected in the Corporation's stock transfer records.

                  2.3.2 Within 20 calendar days after receipt of the Preemption
Notice, each holder of Preferred Stock may elect to purchase or obtain, at the
price and on the terms specified in the Preemption Notice, up to that portion of
such shares or other securities which equals the proportion that the number of
shares of Common Stock owned or issuable upon conversion and exercise of all
convertible and exercisable securities then held by such holder, including the
Preferred Stock, bears to the total number of shares of Common Stock then
outstanding (assuming full conversion and exercise of all convertible or
exercisable securities). The Corporation shall promptly, in writing, inform each
holder of Preferred Stock that purchases all the shares or other securities
available to it (each a "FULLY-EXERCISING HOLDER") of any other holder's failure
to do likewise.

                  2.3.3 The Corporation may, during the 90-day period following
the expiration of the period provided in SUBSECTION 2.3.2 above, offer the
remaining unsubscribed portion of the shares to any person or persons at a price
not less than, and upon terms no more favorable to the offeree than those
specified in the Preemption Notice. If the Corporation does not enter into an
agreement for the sale of the shares within such period, or if such agreement is
not consummated within 90 days of the execution thereof, the right provided
hereunder shall be deemed to be revived and such shares shall not be offered
unless first offered to the holders of Preferred Stock in accordance herewith.

         2.4 LIQUIDATION RIGHTS.

                  2.4.1 In the event of a Liquidation, the holders of Preferred
Stock shall be entitled to receive, out of the assets of the Corporation legally
available for distribution to stockholders and before any payment shall be made
or any assets distributed to the holders of Junior Stock, an amount per share
equal to the sum in cash of (i) $18.80 (the "LIQUIDATION PREFERENCE"), plus (ii)
on a per share basis, an amount equal to all dividends, if any, accumulated and
unpaid, whether or not declared or earned, as of the date of the final
distribution to the holders of the Preferred Stock. If the Corporation at any
time after the Issuance Date effects a subdivision of the outstanding Preferred
Stock, the Liquidation Preference for the Preferred Stock in effect immediately
before the subdivision shall be proportionately decreased, and conversely, if
the Corporation at any time after the Issuance Date effects a combination of the
Preferred Stock, the Liquidation Preference for the Preferred Stock in effect
immediately before the combination shall be proportionately increased. Any such
adjustment to the Liquidation Preference shall become effective at the time the
subdivision or combination becomes effective.

                  2.4.2 After payment to the holders of Preferred Stock of the
amounts set forth in SUBSECTION 2.4.1 above, the remaining assets of the
Corporation shall first be distributed to the holders of Class B Common Stock
and Class C Common Stock in accordance with ARTICLE III of the Certificate of
Incorporation, and then the holders of the Corporation's Common Stock shall be
entitled to share in all of the remaining assets and funds of the Corporation
ratably in proportion to the number of shares of Common Stock then outstanding.

<PAGE>   7

                  2.4.3 If, upon any Liquidation, the assets to be distributed
among the holders of Preferred Stock and any Parity Stock that is of equal rank
as to distributions of assets shall be insufficient to permit payment to such
holders of the full amounts to which they shall be entitled, the holders of
Preferred Stock and such Parity Stock shall share ratably in any such
distribution of assets in accordance with the percentage which would be payable
if all such amounts were paid in full.

                  2.4.4 The Corporation shall provide written notice to each
holder of Preferred Stock at least 20 days prior to any event of Liquidation or
a Change of Control.

                  2.4.5 By giving written notice to the Corporation prior to any
Liquidation or Change of Control, the holders of Preferred Stock may, at their
option, elect to forego their Liquidation Preference, and have their shares of
Preferred Stock converted into Class A Common Stock immediately prior to the
event of Liquidation or Change of Control pursuant to SUBSECTION 2.5.2 hereof.

                  2.4.6 Except with respect to holders that elect to convert
their shares of Preferred Stock into Class A Common Stock, for purposes of this
SECTION 2.4, the holders of a majority of the Preferred Stock may elect to have
treated as a Liquidation: (i) the consolidation or merger of the Corporation
with or into any other corporation or any other reorganization of the
Corporation, unless the stockholders of the Corporation immediately prior to any
such transaction are holders of a majority of the voting securities of the
surviving or acquiring corporation immediately thereafter (and for purposes of
this calculation equity securities which any stockholder or the Corporation
owned immediately prior to such merger or consolidation as a stockholder of
another party to the transaction shall be disregarded); or (ii) the sale or
other transfer in a single transaction or a series of related transactions of
all or substantially all of the assets of the Corporation.

         2.5 CONVERSION RIGHTS OF PREFERRED STOCK.

                  2.5.1 Automatic Conversion. Upon the occurrence of an Approved
Offering, each share of Preferred Stock shall immediately and automatically be
converted into such number of fully paid and nonassessable shares of Class A
Common Stock equal to the product of (A) the number of shares of Preferred Stock
held by such stockholder, multiplied by (B) the number determined by dividing
the then current Liquidation Preference by the then current Conversion Price.
The Corporation shall give not less than (i) ten (10) days prior written notice
to each holder of Preferred Stock of the estimated date of such Approved
Offering and (ii) three (3) days prior written notice of the actual date of the
Approved Offering. The Corporation and the holders of the Preferred Stock shall
carry out the exchange procedures set forth under SUBSECTION 2.5.3 as soon as
practicable on or after the consummation of the Approved Offering, it being
acknowledged by the Corporation that no holder shall be required to give the
notice otherwise required in SUBSECTION 2.5.2.

                  2.5.2 Optional Conversion. A holder of shares of Preferred
Stock may, at his option, at any time and from time to time, convert all or any
part of the shares of Preferred Stock beneficially owned by such holder into
such number of fully paid nonassessable shares of

<PAGE>   8

Class A Common Stock equal to the product of (A) the number of shares of
Preferred Stock held by such stockholder, multiplied by (B) the number
determined by dividing the then current Liquidation Preference by the then
current Conversion Price, by giving written notice to the Corporation and
delivering the certificates evidencing the Preferred Stock in accordance with
SUBSECTION 2.5.3 below. Such notice shall specify the date and place for the
consummation of the conversion (hereinafter such date, or the date of conversion
under SUBSECTION 2.5.1 above, or such other date as may be fixed by the mutual
agreement of the Corporation and such holder as the date for the particular
conversion, is referred to as the "CONVERSION DATE").

                  2.5.3 Exchange of Stock Certificates. Following a conversion
pursuant to SUBSECTION 2.5.1 or 2.5.2 above, each holder of shares of Preferred
Stock shall surrender such holder's certificates evidencing such shares, at the
principal office of the Corporation or at such other place as the Corporation
shall designate, and shall thereupon be entitled to receive certificates
evidencing the number of shares of Class A Common Stock into which such shares
of Preferred Stock have been converted. The Corporation, on the Conversion Date,
in exchange for the foregoing, will deliver to such holder or holders of the
Preferred Stock to be converted a certificate or certificates for the number of
shares of Class A Common Stock to which such holder shall be entitled as
aforesaid. Upon the Conversion Date, each holder of shares of Preferred Stock to
be converted into shares of Class A Common Stock shall be deemed to be the
holder of record of the Class A Common Stock issuable upon such conversion,
notwithstanding that the certificates representing such shares of Preferred
Stock shall not have been surrendered at the office of the Corporation, that
notice from the Corporation regarding the conversion shall not have been
received by any holder of shares of Preferred Stock, or that the certificates
evidencing such shares of Class A Common Stock shall not have been actually
delivered to such holder.

                  2.5.4 Dividends. No adjustment to the Conversion Price shall
be made for cash dividends declared but unpaid on any shares of the Preferred
Stock that shall be converted or for cash dividends on any Common Stock that
shall be issued upon such conversion, but all cash dividends declared and unpaid
on such shares of the Preferred Stock as of the Conversion Date shall constitute
a debt of the Corporation payable to the converting holder, and no cash dividend
shall be paid upon the Common Stock until such debt shall be paid or sufficient
funds set apart for the payment thereof.

                  2.5.5 Adjustments to Conversion Price.

                           2.5.5.1 Adjustment for Subdivisions and Combinations.
If the Corporation at any time or from time to time after the Issuance Date
effects a subdivision of the outstanding Class A Common Stock into a larger
number of shares, the Conversion Price for the Preferred Stock then in effect
immediately before that subdivision shall be proportionately decreased, and
conversely, if the Corporation at any time or from time to time after the
Issuance Date combines the outstanding shares of Class A Common Stock into a
smaller number of shares, the Conversion Price for the Preferred Stock then in
effect immediately before the combination shall be proportionately increased.
Any adjustment under this PARAGRAPH 2.5.5.1 shall become effective at the time
the subdivision or combination becomes effective.

<PAGE>   9

                           2.5.5.2 Adjustment for Certain Dividends and
Distributions. In the event the Corporation at any time or from time to time
after the Issuance Date declares or makes a dividend or other distribution with
respect to the Class A Common Stock payable in additional shares of Class A
Common Stock, then and in each such event the then current Conversion Price for
the Preferred Stock shall be decreased effective as of the date the additional
shares of Class A Common Stock are issued by multiplying the then current
Conversion Price for the Preferred Stock by a fraction (A) the numerator of
which is the total number of shares of Class A Common Stock issued and
outstanding immediately prior to the issuance of the additional shares of Class
A Common Stock and (B) the denominator of which is the total number of shares of
Class A Common Stock issued and outstanding immediately after the issuance of
the additional shares of Class A Common Stock.

                           2.5.5.3 Adjustment for Other Dividends and
Distributions. In the event the Corporation at any time or from time to time
after the Issuance Date declares or makes a dividend or other distribution with
respect to the Class A Common Stock payable in securities of the Corporation
other than additional shares of Class A Common Stock, then in each such event
provision shall be made so that the holders of Preferred Stock shall receive
upon conversion thereof, in addition to the number of shares of Class A Common
Stock receivable thereupon, the amount of securities of the Corporation that
they would have received had their Preferred Stock been converted into Class A
Common Stock prior to the effective date of the issuance of such other
securities.

                           2.5.5.4 Adjustment for Recapitalization,
Reclassification or Other Change. If the Class A Common Stock issuable upon the
conversion of the Preferred Stock is changed into the same or a different number
of shares of any other class or classes of stock, whether by recapitalization,
reclassification or other change (other than a subdivision or combination of
shares, a stock dividend or distribution, or a reorganization, provided for
elsewhere in this SUBSECTION 2.5.5) or into other securities or property, then
in each such event provision shall be made so that the holders of Preferred
Stock shall receive upon conversion thereof the kind and amount of stock and
other securities and property that they would have received had their Preferred
Stock been converted into Class A Common Stock immediately prior to such
recapitalization, reclassification or change, all subject to further adjustment
as provided herein.

                           2.5.5.5 Adjustment for Reorganizations. If at any
time or from time to time there is a capital reorganization of the Class A
Common Stock (other than a recapitalization, reclassification or other change
provided for elsewhere in this SUBSECTION 2.5.5), then in each such event,
provision shall be made so that the holders of Preferred Stock shall receive
upon conversion thereof, the kind and amount of stock and other securities and
property that they would have received had their Preferred Stock been converted
into Class A Common Stock immediately prior to such reorganization, all subject
to further adjustment as provided herein. In any such case, appropriate
adjustment shall be made in the application of the provisions of this SUBSECTION
2.5.5 with respect to the rights of holders of the Preferred Stock after the
reorganization to the end that the provisions of this SUBSECTION 2.5.5
(including adjustment of the Conversion Price for such Preferred Stock then in
effect and number of shares

<PAGE>   10

purchasable upon conversion of such Preferred Stock) shall be applicable after
that event and be as nearly equivalent to the provisions hereof as may be
practicable.

                           2.5.5.6 Minimum Adjustment. Except as hereinafter
provided, no adjustment of the Conversion Price hereunder shall be made if such
adjustment results in a change of the Conversion Price then in effect of less
than 0.1%. Any adjustment of less than 0.1% shall be carried forward and shall
be made at the time of and together with any subsequent adjustment which,
together with the adjustment or adjustments so carried forward, amounts to 0.1%
or more of the Conversion Price then in effect. However, upon conversion of the
Preferred Stock, the Corporation shall make all necessary adjustments not
theretofore made to the Conversion Price up to and including the date of such
conversion.

                  2.5.6 Notice of Adjustments. Whenever the Conversion Price or
the amount of Class A Common Stock or other securities deliverable upon the
conversion of the Preferred Stock shall be adjusted pursuant to the provisions
hereof, the Corporation shall forthwith file, at its principal executive office
and with any transfer agent or agents for its Preferred Stock and Class A Common
Stock, a statement, signed by an authorized officer of the Corporation, stating
the newly adjusted Conversion Price and adjusted amount of its Class A Common
Stock or other securities deliverable per share of the Preferred Stock
calculated to the nearest one one-hundredth and setting forth in reasonable
detail the method of calculation and the facts requiring such adjustment and
upon which such calculation is based and shall mail such certificate, by first
class mail, postage prepaid, to each registered holder of the Preferred Stock at
the holder's address as shown in the Corporation's books.

                  2.5.7 Reservation of Common Stock. The Corporation shall at
all times reserve and keep available out of its authorized but unissued Class A
Common Stock the full number of shares of Class A Common Stock deliverable upon
the conversion of all the then outstanding shares of Preferred Stock and shall
take all such action and obtain all such permits or orders as may be necessary
to enable the Corporation lawfully to issue such Class A Common Stock upon the
conversion of the Preferred Stock.

                  2.5.8 No Fractional Shares. No fractions of shares of Class A
Common Stock shall be issued upon conversion. If more than one share of
Preferred Stock shall be converted at any one time by the same holder, the
number of full shares of Class A Common Stock issuable upon conversion thereof
shall be computed on the basis of the aggregate number of shares of Preferred
Stock so surrendered. In lieu of any fractional shares that would otherwise be
issuable upon conversion of any shares of Preferred Stock, the Corporation shall
when, as and if funds are legally available therefor pay cash equal to such
fraction multiplied by the fair market value of a share of Class A Common Stock
as determined by the Board of Directors.

                  2.5.9 Consolidation, Mergers. In case of any consolidation or
merger of the Corporation with or into another corporation, or in case of any
sale or conveyance to another corporation of all or substantially all of the
assets of the Corporation, the holder of each share of the Preferred Stock then
outstanding shall have the right thereafter, so long as such holder's conversion
right hereunder shall exist, to convert such share of the Preferred Stock into
the kind and amount of shares of stock and other securities and property
receivable upon such

<PAGE>   11

consolidation, merger, sale or conveyance by the holder of the number of shares
of Class A Common Stock of the Corporation into which such share of the
Preferred Stock might have been converted immediately prior to such
consolidation, merger, sale or conveyance, and the Corporation shall cause
proper provision to be made in the Articles or Certificate of Incorporation of
the resulting or surviving corporation or otherwise to protect such conversion
right.

                  2.5.10 Payment of Taxes. The Corporation shall pay all issue
taxes, if any, incurred in connection with the issuance of its Class A Common
Stock or other securities or properties on conversion of any shares of the
Preferred Stock, but the Corporation shall not pay any transfer or other taxes
incurred by reason of the issuance of such Class A Common Stock or other
securities or properties in names other than those in which the share or shares
of the Preferred Stock surrendered for conversion may stand.

                  2.5.11 Adjustments to Remain Effective. Any adjustment of the
Conversion Price herein provided shall remain in effect until further adjustment
of the Conversion Price is required hereunder.

         2.6 REDEMPTION.

                  2.6.1 Mandatory Redemption at Election of Preferred Stock. The
Corporation shall be obligated to redeem and shall promptly redeem all of the
shares of Preferred Stock, upon written request by the holders of a majority of
the issued and outstanding shares of Preferred Stock after the occurrence of a
Triggering Event, for an amount per share equal to (i) the Liquidation
Preference, plus (ii) on a per share basis, an amount equal to all dividends, if
any, accumulated and unpaid, whether or not declared or earned (including any
dividends thereon calculated through the date of redemption) (the "MANDATORY
REDEMPTION OBLIGATION").

                  2.6.2 Failure to Make Payment. If and so long as the Mandatory
Redemption Obligation with respect to Preferred Stock shall not fully be
discharged, the Corporation shall not, directly or indirectly, declare or pay
any dividend or make any distributions on, or purchase, redeem or retire, or
satisfy any mandatory or optional redemption, sinking fund or other similar
obligation in respect of, any Parity Stock or Junior Stock or warrants, rights
or options exercisable for any such Parity Stock or Junior Stock (other than
dividends or distributions payable in a particular class or series of such
Parity Stock or Junior Stock, as the case may be, to holders thereof), except
that the Corporation may redeem Parity Stock that is also subject to mandatory
redemption provisions at such time on a pro rata basis with any required
redemption of the Series A Preferred Stock based on the relative required
redemption payment amounts.

         2.7 RIGHT OF FIRST REFUSAL. The Preferred Stock shall be "Required
Preferred Stock" for purposes of SUBSECTION 3.1.10 of the Corporation's
Certificate of Incorporation.

         2.8 CERTAIN DEFINITIONS. For purposes of this Certificate of
Designation, the following terms have the following meanings:

<PAGE>   12

          "APPROVED OFFERING" shall mean the consummation of the first
     underwritten public offering of Common Stock of the Corporation pursuant to
     a registration statement filed with the Securities and Exchange Commission
     under the Securities Act of 1933, as amended (or any successor provision),
     with a concurrent listing on the New York Stock Exchange, the American
     Stock Exchange, or the Nasdaq Stock Market, Inc. at an initial offering
     price of at least $20.00 per share (subject to adjustment for subsequent
     stock divisions, stock combinations and stock dividends with respect to the
     Common Stock) that results in gross proceeds to the Corporation (before
     deduction of underwriting discounts and expenses of sale) of not less than
     $30,000,000.

          "CHANGE OF CONTROL" shall mean the occurrence of any of the events
     described in Subsection 2.4.6.

          "COMPENSATORY SECURITIES" shall mean shares of Common Stock, rights,
     options or warrants granted or awarded by the Corporation, with the
     approval of its Board of Directors, to employees or directors of the
     Corporation as compensation for service to the Corporation in any such
     capacities, if such rights, options or warrants are granted at an exercise
     price or value not less than the fair market value of a share as of the
     date of grant and do not exceed an aggregate of 6,000,000 shares of Class A
     Common Stock (as adjusted to provide for any dividends, stock
     distributions, splits, combinations or recapitalizations).

          "COMMON STOCK" shall mean, collectively, the Class A Common Stock, the
     Class B Common Stock and the Class C Common Stock of the Corporation.

          "CONVERSION PRICE" shall mean the price at which shares of the Class A
     Common Stock shall be deliverable upon conversion of the Preferred Stock as
     adjusted from time to time as herein provided. The Conversion Price for the
     Preferred Stock shall initially be $18.80 per share.

          "ISSUANCE DATE" shall mean the actual initial date of issuance of the
     Preferred Stock.

          "JUNIOR STOCK" shall mean all Common Stock and all other shares of
     stock of any other class of the Corporation, whether or not presently
     authorized, ranking as to redemption, conversion, payment of dividends or
     distribution of assets junior to the Preferred Stock.

          "LIQUIDATION" shall mean any voluntary and involuntary liquidation,
     dissolution or winding up of the Corporation (including without limitation
     a liquidation or reorganization under Chapter 11 of the United States
     Bankruptcy Code, as amended and as may hereinafter be amended).

          "PARITY STOCK" shall mean all stock of the Corporation, whether or not
     presently authorized, ranking, as to redemption, conversion, payment of
     dividends or distribution of assets, on a parity with the Preferred Stock.

<PAGE>   13

          "PRIOR STOCK" shall mean all stock ranking, as to redemption,
     conversion, payment of dividends or distribution of assets, prior to the
     Preferred Stock.

          "STOCK PURCHASE AGREEMENTS" shall mean those certain Stock Purchase
     Agreements by and among I(3)S Funding I, L.L.C. ("FUNDING"), Blue Ridge
     Investors Limited Partnership ("BLUE RIDGE"), Spotswood Capital, LLC
     ("SPOTSWOOD"), the Corporation, James R. Price, Gary A. Dobbins, Clay C.
     Scott, Jr., Charles Bo Price and George Venner dated as of April 4, 1997,
     March 31, 1998 (as amended June 30, 1998), and December 30, 1998,
     respectively, whereby Funding purchased an aggregate of 4,979,777 shares of
     Class B Common Stock, and dated as of July 10, 1998 and December 30, 1998,
     respectively, whereby Blue Ridge and Spotswood each purchased 1,037,232
     shares of Class C Common Stock, all of which were further amended as of the
     Issuance Date.

          "TRIGGERING EVENT" shall mean the earlier to occur of (x) June 15,
     2004, (y) a Change of Control, or (z) the sale of a majority of the assets
     of the Corporation.

          2.9 PROHIBITION AGAINST REISSUANCE OF SHARES OF PREFERRED STOCK. Any
shares of Preferred Stock that are repurchased or otherwise acquired by the
Corporation or shares of Preferred Stock canceled upon conversion of the
Preferred Stock into shares of Class A Common Stock may not be reissued by the
Corporation."

      [REMAINDER OF PAGE LEFT BLANK INTENTIONALLY; SIGNATURE PAGE FOLLOWS]

<PAGE>   14

         IN WITNESS WHEREOF, and in accordance with Section 151 of the General
Corporation Law of the State of Delaware, the undersigned has executed this
Certificate of Designation as of the date first above written.

                                     BROADBANDNOW, INC.

                                     By:
                                         ---------------------------------------
                                           Name:
                                                 -------------------------------
                                           Title:
                                                  ------------------------------

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