Document:

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                                                                   Exhibit 10.17

                              EMPLOYMENT AGREEMENT

                  This EMPLOYMENT AGREEMENT ("Agreement") made as of August 24,
1999, between Penton Media, Inc., a Delaware corporation (the "Company"), and
Preston L. Vice ("Executive")

                  In consideration of the mutual covenants contained herein and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows:

                  1. Employment. The Company shall employ Executive, and
Executive accepts continued employment with the Company as of the date hereof,
upon the terms and conditions set forth in this Agreement for the period
beginning on the date hereof and ending as provided in paragraph 5 hereof (the
"Employment Period").

                  2. Position and Duties.

                  (a) During the Employment Period, Executive shall serve as
Senior Vice President and Secretary of the Company and shall have the normal
duties, responsibilities and authority of an executive serving in such position,
subject to the power of the Board of Directors of the Company (the "Board") or
the Chief Executive Officer of the Company to expand or limit such duties,
responsibilities and authority, either generally or in specific instances.

                  (b) Executive shall report to the Chief Executive Officer or
the President and Chief Operating Officer of the Company.

                  (c) During the Employment Period, Executive shall devote his
best efforts and his full business time and attention (except for permitted
vacation periods, reasonable periods of illness or other incapacity, and,
provided such activities do not have more than a de minimis effect on
Executive's performance of his duties under this Agreement, participation in
charitable and civic endeavors and management of Executive's personal
investments and business interests) to the business and affairs of the Company.
Executive shall perform his duties and responsibilities to the best of his
abilities in a diligent, trustworthy, businesslike and efficient manner.

                  (d) Executive shall perform his duties and responsibilities
principally in the Cleveland, Ohio metropolitan area, and shall not be required
to travel outside that area any more extensively than he has done in the past in
the ordinary course of the business of the Company.
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                  3. Compensation and Benefits.

                  (a) Salary. The Company agrees to pay Executive a salary
during the Employment Period, in semi-monthly installments. Executive's initial
salary shall be $170,000 per year. The Compensation Committee of the Board (or,
if there is no such Committee, the Board) shall review Executive's salary at
least annually and may, in its sole discretion, increase it.

                  (b) Bonus(es). For the calendar year 1999 and for subsequent
calendar years, Executive will be eligible for an annual bonus based on the
achievement of specified Company goals (the "Target Bonus") (as determined by
the Compensation Committee of the Board (or, if there is no such Committee, the
Board)). Any bonus payable pursuant to this subparagraph (b) may, at the
discretion of the Compensation Committee of the Board (or, if there is no such
Committee, the Board), after considering any preference expressed by Executive,
be paid in the form of cash, in a Performance Shares Award related to shares of
the Company's Common Stock or in a combination of both.

                  (c) Stock Options. The Company has adopted a plan (the "1998
Stock Option Plan") pursuant to which options to purchase shares of the
Company's Common Stock, and other equity-based incentive compensation awards,
may be granted to Executive and other officers of the Company. Executive shall
be eligible to receive grants of options and other awards under the 1998 Stock
Option Plan, at the discretion of the Compensation Committee of the Board (or,
if there is no such Committee, the Board). Under the terms of the 1998 Stock
Option Plan, the Compensation Committee of the Board (or, if there is no such
Committee, the Board) has the right to amend the 1998 Stock Option Plan. If, at
the time of the grant of any option pursuant to this paragraph (c), the issuance
of shares upon exercise thereof has not been registered under the Securities Act
of 1933, as amended, it shall be a condition to such grant that Executive
execute and deliver to the Company a certificate confirming that Executive is an
accredited investor (as such term is used in Regulation D under such Act) and
including transfer restrictions and other provisions customary in connection
with grants under such circumstances. Each option to be granted as set forth
above shall be substantially in the form of Exhibit 1 attached to this
Agreement, except that it is understood that reference to any then existing
registration statement or related plan information document in Exhibit 1, or its
equivalent, shall be included if and only if the same exists at the time of
grant and is relevant to such option.

                  (d) Expense Reimbursement. The Company shall reimburse
Executive for all reasonable expenses incurred by him during the Employment
Period in the course of performing his duties under this Agreement that are
consistent with the Company's policies in effect from time to time with respect
to travel, entertainment and other business expenses, subject to the Company's
requirements applicable generally with respect to reporting and documentation of
such expenses. Executive acknowledges that under the Company's current air
travel reimbursement policy, reimbursement is limited to coach fare (plus
Executive's cost of any upgrade certificates used to upgrade to first class) on
travel within the United States and is limited to business class fare on travel
to and from foreign cities.

                  (e) Standard Executive Benefits Package. In addition to the
salary, bonus(es), stock options and expense reimbursements payable to Executive
pursuant to this paragraph, Executive shall be entitled during the Employment
Period to participate, on the same basis as other executives of the Company, in
the Company's Standard Executive Benefits Package. The

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Company's "Standard Executive Benefits Package" means those benefits (including
insurance, vacation, Company car or car allowance, equity-based benefits, and
other benefits) for which substantially all of the executives of the Company are
from time to time generally eligible, as determined from time to time by the
Board.

                  (f) Additional Benefits. In addition to participation in the
Company's Standard Executive Benefits Package pursuant to this paragraph,
Executive shall be entitled during the Employment Period to:

                  (i)      additional term life insurance coverage in an amount
                           equal to Executive's annual salary; but only if and
                           so long as such additional coverage is available at
                           standard rates from the insurer providing term life
                           insurance coverage under the Standard Executive
                           Benefits Package or from a comparable insurer
                           acceptable to the Company;

                  (ii)     supplementary long-term disability coverage in an
                           amount which will increase maximum covered annual
                           compensation to $180,000 and the maximum monthly
                           payments to $10,000; but only if and so long as such
                           supplementary coverage is available at standard rates
                           from the insurer providing long-term disability
                           coverage under the Standard Executive Benefits
                           Package or a comparable insurer acceptable to the
                           Company; and

                  (iii)    coverage under the Company's Supplemental Executive
                           Retirement Plan, subject to approval of the
                           Compensation Committee of the Board (or, if there is
                           no such Committee, the Board) .

                  (g) Indemnification. With respect to Executive's acts or
failures to act during the Employment Period in his capacity as a director,
officer, employee or agent of the Company, Executive shall be entitled to
indemnification from the Company, and to liability insurance coverage (if any),
on the same basis as other directors and officers of the Company.

                  4. Adjustments. Notwithstanding any other provision of this
Agreement, it is expressly understood and agreed that if there is a significant
reduction in the level of the business to which Executive's duties under this
Agreement relate, or if all or any significant part of such business is disposed
of by the Company and/or its subsidiaries or affiliates during the Employment
Period but Executive thereafter remains an employee of the Company, the
Compensation Committee of the Board (or, if there is no such Committee, the
Board) may make adjustments in Executive's duties, responsibility and authority,
and in Executive's compensation, as the Compensation Committee of the Board (or,
if there is no such Committee, the Board) deems appropriate to reflect such
reduction or disposition.

                  5. Employment Period.

                  (a) Except as hereinafter provided, the Employment Period
shall continue until, and shall end upon, the second anniversary of the date on
which the Employment Period begins.

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                  (b) On each anniversary of the date on which the Employment
Period begins which precedes Executive's sixty-fifth birthday by more than one
year, unless the Employment Period shall have ended early pursuant to (c) below
or either party shall have given the other party written notice that the
extension provision in this sentence shall no longer apply, the Employment
Period shall be extended for an additional year (unless Executive's sixty-fifth
birthday occurs during such additional year, in which event the Employment
Period shall be extended only until such birthday). In no event shall the
Employment Period be extended beyond Executive's sixty-fifth birthday except by
mutual written agreement of the Company and Executive.

                  (c) Notwithstanding (a) and (b) above, the Employment Period
shall end early upon the first to occur of any of the following events:

                  (i)      Executive's death;

                  (ii)     Executive's retirement upon or after reaching age 65
                           ("Retirement");

                  (iii)    the Company's termination of Executive's employment
                           on account of Executive's having become unable (as
                           determined by the Board in good faith) to regularly
                           perform his duties hereunder by reason of illness or
                           incapacity for a period of more than six (6)
                           consecutive months ("Termination for Disability");

                  (iv)     the Company's termination of Executive's employment
                           for Cause ("Termination for Cause");

                  (v)      the Company's termination of Executive's employment
                           other than a Termination for Disability or a
                           Termination for Cause ("Termination without Cause");

                  (vi)     Executive's termination of Executive's employment for
                           Good Reason, by means of advance written notice to
                           the Company at least thirty (30) days prior to the
                           effective date of such termination identifying such
                           termination as a Termination by Executive for Good
                           Reason and identifying the Good Reason ("Termination
                           by Executive for Good Reason") (it being expressly
                           understood that Executive's giving notice that the
                           extension provision in the first sentence of
                           paragraph 5(b) hereof shall no longer apply shall not
                           constitute a Termination by Executive for Good
                           Reason);

                  (vii)    Executive's termination of Executive's employment for
                           any reason other than Good Reason, by means of
                           advance written notice to the Company at least one
                           hundred twenty (120) days prior to the effective date
                           of such termination identifying such termination as a
                           Termination by Executive with Advance Notice
                           ("Termination by Executive with Advance Notice") (it
                           being expressly understood that Executive's giving
                           notice that the extension provision in the first
                           sentence of paragraph 5(b) hereof shall no longer
                           apply shall not constitute a Termination by Executive
                           with Advance Notice); or

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                  (viii)   the termination of Executive's employment (A) on
                           account of a Termination without Cause before the
                           second anniversary of a Change of Control, (B) on
                           account of a Termination by Executive for Good Reason
                           before the second anniversary of a Change of Control
                           or (C) in connection with but prior to a Change of
                           Control and following the commencement of any
                           discussion with any third party that (i) requests or
                           suggests that Executive's employment be terminated,
                           and (ii) ultimately engages in a Change of Control
                           (collectively, "Termination Following a Change of
                           Control").

                  (d)      For purposes of this Agreement, "Cause" shall mean:

                  (i)      the commission by Executive of a felony or a crime
                           involving moral turpitude;

                  (ii)     the commission by Executive of a fraud;

                  (iii)    the commission by Executive of any act involving
                           dishonesty or disloyalty with respect to the Company
                           or any of its subsidiaries or affiliates that harms
                           or damages any of them to any extent;

                  (iv)     conduct by Executive that brings the Company or any
                           of its subsidiaries or affiliates into substantial
                           public disgrace or disrepute;

                  (v)      gross negligence or willful misconduct by Executive
                           with respect to the Company or any of its
                           subsidiaries or affiliates;

                  (vi)     repudiation of this Agreement by Executive or
                           Executive's abandonment of his employment with the
                           Company (it being expressly understood that a
                           Termination by Executive for Good Reason or a
                           Termination by Executive with Advance Notice shall
                           not constitute such a repudiation or abandonment);

                  (vii)    breach by Executive of any of the agreements in
                           paragraph 8 hereof prior to the end of the Employment
                           Period; or

                  (viii)   any other breach by Executive of this Agreement which
                           is material and which is not cured within thirty (30)
                           days after written notice thereof to Executive from
                           the Company.

                  (e)      For purposes of this Agreement, "Good Reason" shall
                           mean:

                  (i)      a reduction by the Company in Executive's salary to
                           an amount less than "Executive's Reference Salary"
                           (i.e., Executive's initial salary or, in the event
                           the Employment Period has been extended pursuant to
                           paragraph 5(b) hereof, Executive's salary on the date
                           on which the most recent such extension occurred) or
                           any downward adjustment in Executive's Target Bonus;
                           or

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                  (ii)     the Company's giving notice that the extension
                           provision in the first sentence of paragraph 5(b)
                           hereof shall no longer apply; or

                  (iii)    any breach by the Company of this Agreement which is
                           material and which is not cured within thirty (30)
                           days after written notice thereof to the Company from
                           Executive.

                  (f) For purposes of this Agreement, "Change of Control" shall
mean the occurrence of any of the following events during the Employment Period:

                  (i) The acquisition by any individual, entity or group (within
         the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange
         Act of 1934, as amended (the "Exchange Act")) (a "Person") of
         beneficial ownership (within the meaning of Rule 13d-3 promulgated
         under the Exchange Act) of 40% or more of either: (A) the
         then-outstanding shares of common stock of the Company (the "Company
         Common Stock") or (B) the combined voting power of the then-outstanding
         voting securities of the Company entitled to vote generally in the
         election of directors ("Voting Stock"); provided, however, that for
         purposes of this subparagraph (i), the following acquisitions shall not
         constitute a Change of Control: (A) any acquisition directly from the
         Company, (B) any acquisition by the Company, a subsidiary of the
         Company or the Harris Group, (C) any acquisition by any employee
         benefit plan (or related trust) sponsored or maintained by the Company
         or any subsidiary of the Company, or (D) any acquisition by any Person
         pursuant to a transaction which complies with clauses (A), (B) and (C)
         of subparagraph (iii) of this paragraph 5(f); or

                  (ii) Individuals who, as of the date hereof, constitute the
         Board (the "Incumbent Board") cease for any reason (other than death or
         disability) to constitute at least a majority of the Board; provided,
         however, that any individual becoming a director subsequent to the date
         hereof whose election, or nomination for election by the Company's
         shareholders, was approved by a vote of at least a majority of the
         directors then comprising the Incumbent Board (either by a specific
         vote or by approval of the proxy statement of the Company in which such
         person is named as a nominee for director, without objection to such
         nomination) shall be considered as though such individual were a member
         of the Incumbent Board, but excluding for this purpose, any such
         individual whose initial assumption of office occurs as a result of an
         actual or threatened election contest (within the meaning of Rule
         14a-11 of the Exchange Act) with respect to the election or removal of
         directors or other actual or threatened solicitation of proxies or
         consents by or on behalf of a Person other than the Board; or

                  (iii) Consummation of a reorganization, merger or
         consolidation or sale or other disposition of all or substantially all
         of the assets of the Company (a "Business Combination"), in each case,
         unless, following such Business Combination, (A) all or substantially
         all of the individuals and entities who were the beneficial owners,
         respectively, of the Company Common Stock and Voting Stock immediately
         prior to such Business Combination beneficially own, directly or
         indirectly, more than a majority of, respectively, the then-outstanding
         shares of common stock and the combined voting power of the
         then-outstanding voting securities entitled to vote generally in the
         election of directors, as the case may be, of the entity resulting from
         such Business Combination (including, without

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         limitation, an entity which as a result of such transaction owns the
         Company or all or substantially all of the Company's assets either
         directly or through one or more subsidiaries) in substantially the same
         proportions relative to each other as their ownership, immediately
         prior to such Business Combination, of the Company Common Stock and
         Voting Stock of the Company, as the case may be, (B) no Person
         (EXCLUDING any entity resulting from such Business Combination, the
         Harris Group or any employee benefit plan (or related trust) sponsored
         or maintained by the Company, a subsidiary of the Company or such
         entity resulting from such Business Combination) beneficially owns,
         directly or indirectly, 40% or more of, respectively, the
         then-outstanding shares of common stock of the entity resulting from
         such Business Combination, or the combined voting power of the
         then-outstanding voting securities of such corporation except to the
         extent that such ownership existed prior to the Business Combination
         and (C) at least a majority of the members of the board of directors of
         the corporation resulting from such Business Combination were members
         of the Incumbent Board at the time of the execution of the initial
         agreement, or of the action of the Board, providing for such Business
         Combination; or

                  (iv) Approval by the shareholders of the Company of a complete
         liquidation or dissolution of the Company.

                  (v) For purposes of this paragraph 5(f), the "Harris Group"
         shall mean Messrs. Irving B. Harris, Neison Harris, King Harris,
         William W. Harris and June H. Barrows, and their respective spouses,
         descendants and spouses of descendants, trustees of trusts established
         for the benefit of such persons (acting in their capacity as trustees
         of such trusts), and executors of estates of such persons (acting in
         their capacity as executors of such estates), and each person of which
         any of the foregoing owns (i) more than fifty percent (50%) of the
         voting stock or other voting interests and (ii) stock or other
         interests representing more than fifty percent (50%) of the total value
         of the stock or other interests of such person.

                  6. Post-Employment Period Payments.

                  (a) If the Employment Period ends on the date on which
(without any extension thereof) it is then scheduled to end pursuant to
paragraph 5 hereof, or if the Employment Period ends early pursuant to paragraph
5 hereof for any reason, Executive shall cease to have any rights to salary,
bonus (if any), options, expense reimbursements or other benefits other than:
(i) any salary which has accrued but is unpaid, any reimbursable expenses which
have been incurred but are unpaid, and any unexpired vacation days which have
accrued under the Company's vacation policy but are unused, as of the end of the
Employment Period, (ii) any option rights or plan benefits which by their terms
extend beyond termination of Executive's employment (but only to the extent
provided in any option theretofore granted to Executive or any benefit plan in
which Executive has participated as an employee of the Company), (iii) any
benefits to which Executive is entitled under Part 6 of Subtitle B of Title I of
the Employee Retirement Income Security Act of 1974, as amended ("COBRA") and
(iv) any other amount(s) payable pursuant to the succeeding provisions of this
paragraph 6.

                  (b) If the Employment Period ends pursuant to paragraph 5
hereof on Executive's sixty-fifth birthday, or if the Employment Period ends
early pursuant to paragraph 5 hereof on

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account of Executive's death, Retirement (provided such Retirement is not a
Termination Following a Change of Control) or Termination for Disability, the
Company shall make no further payments to Executive except as contemplated in
(a)(i), (ii) and (iii) above.

                  (c) If the Employment Period ends early pursuant to paragraph
5 hereof on account of Termination for Cause, the Company shall pay Executive an
amount equal to that amount Executive would have received as salary (based on
Executive's salary then in effect) had the Employment Period remained in effect
until the later of the effective date of the Company's termination of
Executive's employment or the date thirty days after the Company's notice to
Executive of such termination. The Company shall make no further payments to
Executive except as contemplated in (a)(i), (ii) and (iii) above.

                  (d) If the Employment Period ends early pursuant to paragraph
5 hereof on account of a Termination without Cause or a Termination by Executive
for Good Reason, and such termination does not constitute a Termination
Following a Change of Control, the Company shall pay to Executive amounts equal
to the amounts Executive would have received as salary (based on Executive's
salary then in effect or, if greater, Executive's Reference Salary) had the
Employment Period remained in effect for a period of twenty-four (24) months
after the last day of the month in which the Employment Period ends (in the
event Executive is entitled during the payment period to any payments under any
disability benefit plan or the like in which Executive has participated as an
employee of the Company, less such payments), payable at the times such amounts
would have been paid; provided, however, that if Executive so chooses, in his
sole discretion, such payment under this subparagraph (d) shall be made in a
lump sum. In addition, the Company shall reimburse Executive (net after taxes on
the receipt of such reimbursement) for any premiums paid by Executive for health
insurance provided to Executive (for Executive and his dependents) by the
Company subsequent to the end of the Employment Period pursuant to the
requirements of COBRA as in effect on the date of this Agreement. The Company
shall make no further payments to Executive except as contemplated in (a)(i),
(ii) and (iii) above. It is expressly understood that the Company's payment
obligations under this subparagraph (d) shall cease in the event Executive
breaches any of his agreements in paragraph 7 or 8 hereof.

                  (e) If the Employment Period ends early pursuant to paragraph
5 hereof on account of a Termination by Executive with Advance Notice, and such
termination does not constitute a Termination Following a Change of Control, the
Company shall make no further payments to Executive except as contemplated in
(a)(i), (ii) and (iii) above.

                  (f)(i)   If the Employment Period ends early pursuant to
                           paragraph 5 hereof on account of a Termination
                           Following a Change of Control, Executive shall be
                           entitled to receive an amount equal to two times the
                           sum of (A) Executive's annual base salary at the time
                           of such termination (or, if higher, Executive's
                           Reference Salary) and (B) Executive's Target Bonus
                           for the year in which such termination occurs (or, if
                           higher, Executive's Target Bonus for the preceding
                           year or the year in which the Change of Control
                           occurs), payable at the times such amounts would have
                           been paid; provided, however, that if Executive so
                           chooses, in his sole discretion, such payment under
                           this subparagraph (f)(i) shall be made in a lump sum.
                           In addition, the Company shall reimburse Executive
                           (net after taxes on the receipt of such

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                           reimbursement) for any premiums paid by Executive for
                           health insurance provided to Executive (for Executive
                           and his dependents) by the Company subsequent to the
                           end of the Employment Period pursuant to the
                           requirements of COBRA as in effect on the date of
                           this Agreement.

                  (ii)     Notwithstanding any provision of this Agreement to
                           the contrary, if any amount or benefit to be paid or
                           provided under this Agreement or otherwise pursuant
                           to or by reason of any other agreement, policy, plan,
                           program or arrangement, including without limitation
                           any bonus, stock option, performance share,
                           performance unit, stock appreciation right or similar
                           right, or the lapse or termination of any restriction
                           on or the vesting or exercisability of any of the
                           foregoing would be an "Excess Parachute Payment,"
                           within the meaning of Section 280G of the Code, or
                           any successor provision thereto, but for the
                           application of this sentence, then the payments and
                           benefits to be paid or provided under this Agreement
                           shall be reduced to the minimum extent necessary (but
                           in no event to less than zero) so that no portion of
                           any such payment or benefit, as so reduced,
                           constitutes an Excess Parachute Payment; provided,
                           however, that the foregoing reduction shall be made
                           only if and to the extent that such reduction would
                           result in an increase in the aggregate payment and
                           benefits to be provided to Executive, determined on
                           an after-tax basis (taking into account the excise
                           tax imposed pursuant to Section 4999 of the Code, or
                           any successor provision thereto, any tax imposed by
                           any comparable provision of state law, and any
                           applicable federal, state and local income taxes).
                           The determination of whether any reduction in such
                           payments or benefits to be provided under this
                           Agreement is required pursuant to the preceding
                           sentence shall be made at the expense of the Company,
                           if requested by the Executive or the Company, by the
                           Company's independent accountants. The fact that the
                           Executive's right to payments or benefits may be
                           reduced by reason of the limitations contained in
                           this paragraph 6(f) shall not of itself limit or
                           otherwise affect any other rights of the Executive
                           other than pursuant to this Agreement. In the event
                           that any payment or benefit intended to be provided
                           under this Agreement is required to be reduced
                           pursuant to this paragraph 6(f), the Executive shall
                           be entitled to designate the payments and/or benefits
                           to be so reduced in order to give effect to this
                           paragraph 6(f). The Company shall provide the
                           Executive with all information reasonably requested
                           by the Executive to permit the Executive to make such
                           designation. In the event that the Executive fails to
                           make such designation within 10 business days of the
                           Date of Termination, the Company may effect such
                           reduction in any manner it deems appropriate.

                  (g) Without limiting the rights of the Executive at law or in
equity, if the Company fails to make any payment or provide any benefit required
to be made or provided hereunder on a timely basis, the Company will pay
interest on the amount or value thereof at an annualized rate of interest equal
to the so-called composite "prime rate" as quoted from time to time during the
relevant period in the Midwest Edition of The Wall Street Journal. Such interest
will be

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payable as it accrues on demand. Any change in such prime rate will be effective
on and as of the date of such change.

                  (h) Executive shall not be required to mitigate the amount of
any payment or benefit provided for in this Agreement by seeking other
employment or otherwise.

                  7. Confidential Information. Executive acknowledges that the
information, observations and data obtained by him while employed by the Company
pursuant to this Agreement, as well as those obtained by him while employed by
the Company or any of its subsidiaries or affiliates or any predecessor thereof
prior to the date of this Agreement, concerning the business or affairs of the
Company or any of its subsidiaries or affiliates or any predecessor thereof
(unless and except to the extent the foregoing become generally known to and
available for use by the public other than as a result of Executive's acts or
omissions to act, "Confidential Information") are the property of the Company or
such subsidiary or affiliate. Therefore, Executive agrees that during the
Employment Period and for two years thereafter he shall not disclose any
Confidential Information without the prior written consent of the Chief
Executive Officer of the Company unless and except to the extent that such
disclosure is (i) made in the ordinary course of Executive's performance of his
duties under this Agreement or (ii) required by any subpoena or other legal
process (in which event Executive will give the Company prompt notice of such
subpoena or other legal process in order to permit the Company to seek
appropriate protective orders), and that he shall not use any Confidential
Information for his own account without the prior written consent of the Chief
Executive Officer of the Company. Executive shall deliver to the Company at the
termination of the Employment Period, or at any other time the Company may
reasonably request, all memoranda, notes, plans, records, reports, computer
tapes and software and other documents and data (and copies thereof) relating to
the Confidential Information, or to the work product or the business of the
Company or any of its subsidiaries or affiliates which he may then possess or
have under his control.

                  8. Non-Compete, Non-Solicitation.

                  (a) Executive acknowledges that in the course of his
employment with the Company pursuant to this Agreement he will become familiar,
and during the course of his employment by the Company or any of its
subsidiaries or affiliates or any predecessor thereof prior to the date of this
Agreement he has become familiar, with trade secrets and customer lists of and
other confidential information concerning the Company and its subsidiaries and
affiliates and predecessors thereof and that his services have been and will be
of special, unique and extraordinary value to the Company.

                  (b) Executive agrees that during the Employment Period and for
a period of two years after termination of his employment with the Company, he
shall not in any manner, directly or indirectly, through any person, firm or
corporation, alone or as a member of a partnership or as an officer, director,
shareholder, investor or employee of or in any other corporation or enterprise
or otherwise, engage in or be engaged in, or assist any other person, firm,
corporation or enterprise in engaging or being engaged in, any business then
actively being conducted by the Company or any of its subsidiaries or
affiliates.

                  (c) Executive further agrees that during the Employment Period
and for a period of two years after termination of his employment with the
Company, he shall not in any manner,

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directly or indirectly, induce or attempt to induce any employee of the Company
or of any of its subsidiaries or affiliates to quit or abandon his employ.

                  (d) Nothing in this paragraph 8 shall prohibit Executive from
being: (i) a shareholder in a mutual fund or a diversified investment company or
(ii) a passive owner of not more than 5% of the outstanding equity securities of
any class of a corporation or other entity which is publicly traded, so long as
Executive has no active participation in the business of such corporation or
other entity.

                  (e) If, at the time of enforcement of this paragraph, a court
holds that the restrictions stated herein are unreasonable under circumstances
then existing, the parties hereto agree that the maximum period, scope or
geographical area reasonable under such circumstances shall be substituted for
the stated period, scope or area and that the court shall be allowed to revise
the restrictions contained herein to cover the maximum period, scope and area
permitted by law.

                  9. Enforcement. Because Executive's services are unique and
because Executive has access to Confidential Information and work product, the
parties hereto agree that the Company would be damaged irreparably in the event
any of the provisions of paragraph 8 hereof were not performed in accordance
with their specific terms or were otherwise breached and that money damages
would be an inadequate remedy for any such non-performance or breach. Therefore,
the Company or its successors or assigns shall be entitled, in addition to other
rights and remedies existing in their favor, to an injunction or injunctions to
prevent any breach or threatened breach of any of such provisions and to enforce
such provisions specifically (without posting a bond or other security).

                  10. Executive Representations. Executive represents and
warrants to the Company that (i) the execution, delivery and performance of this
Agreement by Executive does not and will not conflict with, breach, violate or
cause a default under any contract, agreement, instrument, order, judgment or
decree to which Executive is a party or by which he is bound, (ii) Executive is
not a party to or bound by any employment agreement, noncompete agreement or
confidentiality agreement with any other person or entity, and (iii) upon the
execution and delivery of this Agreement by the Company, this Agreement shall be
the valid and binding obligation of Executive, enforceable in accordance with
its terms.

                  11. Survival. Subject to any limits on applicability contained
therein, paragraphs 7 and 8 hereof shall survive and continue in full force in
accordance with their terms notwithstanding any termination of the Employment
Period.

                  12. Notices. Any notice provided for in this Agreement shall
be in writing and shall be either personally delivered, sent by reputable
overnight carrier or mailed by first class mail, return receipt requested, to
the recipient at the address below indicated:

                  Notices to Executive:

                  Mr. Preston L. Vice
                  15574 Forestwood Drive
                  Strongsville, Ohio   44136

                                      -11-
<PAGE>   12
                  Notices to the Company:

                  Mr. Thomas L. Kemp
                  Chief Executive Officer
                  Penton Media, Inc.
                  1100 Superior Avenue
                  Cleveland, OH 44114

or such other address or to the attention of such other person as the recipient
party shall have specified by prior written notice to the sending party. Any
notice under this Agreement will be deemed to have been given when so delivered,
sent or mailed.

                  13. Severability. Whenever possible, each provision of this
Agreement shall be interpreted in such manner as to be effective and valid under
applicable law, but if any provision of this Agreement is held to be invalid,
illegal or unenforceable in any respect under any applicable law or rule in any
jurisdiction, such invalidity, illegality or unenforceability shall not affect
any other provision or any other jurisdiction, but this Agreement shall be
reformed, construed and enforced in such jurisdiction as if such invalid,
illegal or unenforceable provision had never been contained herein.

                  14. Payment of Certain Costs and Expenses.

                  (a) Prevailing Party's Litigation Expenses. In the event of
litigation between the Company and Executive related to this Agreement, the
non-prevailing party shall reimburse the prevailing party for any costs and
expenses (including without limitation attorneys' fees) reasonably incurred by
the prevailing party in connection therewith.

                  (b) Change of Control of the Company. Without limiting the
generality of (a) above, in the event that there is a Change of Control of the
Company, if it should appear to Executive that the Company has failed to comply
with any of its obligations under this Agreement or in the event that the
Company or any other person takes or threatens to take any action to declare
this Agreement void or unenforceable, or institutes any litigation or other
action or proceeding designed to deny, or to recover from, Executive the
benefits provided or intended to be provided to Executive hereunder, the Company
irrevocably authorizes Executive from time to time to retain counsel of
Executive's choice, at the expense of the Company as hereafter provided, to
advise and represent Executive in connection with any such interpretation,
enforcement or defense, including without limitation the initiation or defense
of any litigation or other legal action, whether by or against the Company or
any Director, officer, shareholder or other person affiliated with the Company,
in any jurisdiction. Notwithstanding any existing or prior attorney-client
relationship between the Company and such counsel, the Company irrevocably
consents to Executive's entering into an attorney-client relationship with such
counsel, and in that connection the Company and Executive agree that a
confidential relationship will exist between Executive and such counsel. Without
respect to whether Executive prevails, in whole or in part, in connection with
any of the foregoing, the Company will pay and be solely financially responsible
for any and all attorneys' and related fees and expenses incurred by Executive
in connection with any of the foregoing.

                                      -12-
<PAGE>   13
                  (c) Source of Payments. Except as otherwise specified herein,
in the event a Change of Control occurs, any payments to Executive pursuant to
this Agreement and the performance of the Company's obligations hereunder shall
be secured by amounts deposited or to be deposited in a trust established by the
Company for the benefit of Executive (and, at the Company's option, for the
benefit of other executives of the Company who are entitled to payments similar
to those provided in this Agreement) (the "Trust"). The Company shall transfer
to such Trust assets from which all or a portion of the payments provided under
this Agreement are to be paid, provided that such assets of the Trust shall at
all times be subject to the claims of general unsecured creditors of the Company
and that neither Executive nor any other person entitled to payments through the
Trust shall at any time have a prior claim to such assets. Any payments to
Executive under this Agreement that are not paid through the Trust shall be paid
from the Company's general assets, and Executive shall have the status of a
general unsecured creditor with respect to the Company's obligations to make
payments under this Agreement.

                  15. Complete Agreement. This Agreement embodies the complete
agreement and understanding between the parties with respect to the subject
matter hereof and effective as of its date supersedes and preempts any prior
understandings, agreements or representations by or between the parties, written
or oral, which may have related to the subject matter hereof in any way.

                  16. Counterparts. This Agreement may be executed in separate
counterparts, each of which shall be deemed to be an original and both of which
taken together shall constitute one and the same agreement.

                  17. Successors and Assigns. This Agreement shall bind and
inure to the benefit of and be enforceable by Executive, the Company and their
respective heirs, executors, personal representatives, successors and assigns,
except that neither party may assign any of his or its rights or delegate any of
his or its obligations hereunder without the prior written consent of the other
party. Executive hereby consents to the assignment by the Company of all of its
rights and obligations hereunder to any successor to the Company by merger or
consolidation or purchase of all or substantially all of the Company's assets,
provided such transferee or successor assumes the liabilities of the Company
hereunder.

                  18. Choice of Law. This Agreement shall be governed by the
internal law, and not the laws of conflicts, of the State of Ohio.

                  19. Amendment and Waiver. The provisions of this Agreement may
be amended or waived only with the prior written consent of the Company and
Executive, and no course of conduct or failure or delay in enforcing the
provisions of this Agreement shall affect the validity, binding effect or
enforceability of this Agreement.

                                      -13-
<PAGE>   14
                  IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date written below.

                                                      PENTON MEDIA, INC.

Date:               , 1999                   By
                                                    Thomas L. Kemp
                                                    Chief Executive Officer

Date:               , 1999
                                                     Preston L. Vice

                                      -14-
<PAGE>   15
                                                                       Exhibit 1

                               PENTON MEDIA, INC.
                       NONQUALIFIED STOCK OPTION AGREEMENT

         This AGREEMENT (this "Agreement") is made as of _____________ (the
"Date of Grant"), by and between Penton Media, Inc. a Delaware corporation (the
"Company"), and ____________ (the "Optionee").

1.                GRANT OF STOCK OPTION. Subject to and upon the terms,
         conditions, and restrictions set forth in this Agreement and in the
         Company's 1998 Equity and Performance Incentive Plan (the "Plan"), the
         Company hereby grants to the Optionee as of the Date of Grant a stock
         option (the "Option") to purchase __________ shares of Common Stock
         (the "Optioned Shares"). The Option may be exercised from time to time
         in accordance with the terms of this Agreement. The price at which the
         Optioned Shares may be purchased pursuant to the Option shall be
         ___________ per share subject to adjustment as hereinafter provided
         (the "Option Price"). The Option is intended to be a nonqualified stock
         option and shall not be treated as an "incentive stock option" within
         the meaning of that term under Section 422 of the Code, or any
         successor provision thereto.

2.                TERM OF OPTION. The term of the Option shall commence on the
         Date of Grant and, unless earlier terminated in accordance with Section
         6 hereof, shall expire ten (10) years from the Date of Grant.

3.                RIGHT TO EXERCISE. Subject to Section 6 hereof, the Option
         will be exercisable in whole at any time and in part from time to time
         after the third anniversary of the Date of Grant but prior to the tenth
         anniversary of the Date of Grant; provided, however that:

                           a. in the event that the employment with the Company
                  and its Subsidiaries terminates prior to the third anniversary
                  of the Date of Grant on account of (i) the Optionee's
                  retirement at or after age 65, (ii) the death of the Optionee
                  if such death occurs while the Optionee is employed by the
                  Company or any Subsidiary or (iii) the Optionee's permanent
                  and total disability if the Optionee becomes permanently and
                  totally disabled while an employee of the Company or any
                  Subsidiary, the Option will thereupon become exercisable
                  immediately with respect to all of the Optioned Shares; and

                           b. in the event that employment with the Company and
                  its Subsidiaries terminates prior to the third anniversary of
                  the Date of Grant other than on account of retirement at or
                  after age 65, death or permanent and total disability, the
                  Option will thereupon become exercisable immediately (i) as to
                  33 1/3% of the Optioned Shares if such termination occurs on
                  or after the first anniversary of the Date of Grant but prior
                  to the second anniversary of the Date of Grant, and (ii) as to
                  66 2/3% of the Optioned Shares if such termination occurs on
                  or after the second anniversary of the Date of Grant but prior
                  to the third anniversary of the Date of Grant.
<PAGE>   16
                  Notwithstanding the foregoing, in no event shall the Optionee
         be entitled to acquire a fraction of one Optioned Share pursuant to the
         Option. The Optionee shall be entitled to the privileges of ownership
         with respect to Optioned Shares purchased and delivered to the Optionee
         upon the exercise of all or part of the Option.

4.                OPTION NONTRANSFERABLE. The Option granted hereby shall be
         neither transferable nor assignable by the Optionee other than by will
         or by the laws of descent and distribution and may be exercised, during
         the lifetime of the Optionee, only by the Optionee, or in the event of
         his or her legal incapacity, by his or her guardian or legal
         representative acting on behalf of the Optionee in a fiduciary capacity
         under state law and court supervision.

5.                NOTICE OF EXERCISE; PAYMENT.  To the extent then exercisable,
         the Option may be exercised by written notice to the Company stating
         the number of Optioned Shares for which the Option is being exercised
         and the intended manner of payment. Payment equal to the aggregate
         Option Price of the Optioned Shares for which the Option is being
         exercised shall be tendered in full with the notice of exercise to the
         Company in cash in the form of currency or check or other cash
         equivalent acceptable to the Company. The Optionee may also tender the
         Option Price by (a) the actual or constructive transfer to the Company
         of nonforfeitable, nonrestricted shares of Common Stock that have been
         owned by the Optionee for (i) more than one year prior to the date of
         exercise and for more than two years from the date on which the option
         was granted, if they were originally acquired by the Optionee pursuant
         to the exercise of an incentive stock option, within the meaning of
         Section 422 of the Code or (ii) more than six months prior to the date
         of exercise, if they were originally acquired by the Optionee other
         than pursuant to the exercise of an incentive stock option, or (b) by
         any combination of the foregoing methods of payment, including a
         partial tender in cash and a partial tender in nonforfeitable,
         nonrestricted shares of Common Stock. Nonforfeitable, nonrestricted
         shares of Common Stock that are transferred by the Optionee in payment
         of all or any part of the Option Price shall be valued on the basis of
         their Market Value per Share. The requirement of payment in cash shall
         be deemed satisfied if the Optionee makes arrangements that are
         satisfactory to the Company with a broker that is a member of the
         National Association of Securities Dealers, Inc. to sell on the
         exercise date a sufficient number of Optioned Shares that are being
         purchased pursuant to the exercise, so that the net proceeds of the
         sale transaction will at least equal the amount of the aggregate Option
         Price plus payment of any applicable withholding taxes, and pursuant to
         which the broker undertakes to deliver to the Company the amount of the
         aggregate Option Price plus payment of any applicable withholding taxes
         on a date satisfactory to the Company, but not later than the date on
         which the sale transaction will settle in the ordinary course of
         business. As a further condition precedent to the exercise of the
         Option, the Optionee shall comply with all regulations and requirements
         of any regulatory authority having control of, or supervision over, the
         issuance of shares of Common Stock and in connection therewith shall
         execute any documents that the Board shall in its sole discretion deem
         necessary or advisable. The date of the Optionee's written notice shall
         be the exercise date.

6.                TERMINATION OF AGREEMENT. This Agreement and the Option
         granted hereby shall terminate automatically and without further notice
         on the earliest of the following dates:

                                      -2-
<PAGE>   17
                           (a) One (1) year after the Optionee's retirement at
                  or after age 65;

                           (b) One (1) year after the Optionee's death if such
                  death occurs while the Optionee is employed by the Company or
                  any Subsidiary;

                           (c) One (1) year after the Optionee's permanent and
                  total disability, if the Optionee becomes permanently and
                  totally disabled while an employee of the Company or any
                  Subsidiary;

                           (d) Except as provided on a case-by-case basis,
                  thirty (30) calendar days after the Optionee ceases to be an
                  employee of the Company and the Subsidiaries for any reason
                  other than as described in Section 6(a), 6(b) or 6(c) hereof;
                  or

                           (e) Ten (10) years from the Date of Grant.

         In the event that the Optionee's employment is terminated for cause,
         this Agreement shall terminate at the time of such termination
         notwithstanding any other provision of this Agreement and the
         Optionee's option will cease to be exercisable to the extent
         exercisable as of such termination and will not become exercisable
         after such termination. For purposes of this provision, "cause" shall
         mean the Optionee shall have committed prior to termination of
         employment any of the following acts:

                           (i)      an intentional act of fraud, embezzlement,
                                    theft, or any other material violation of
                                    law in connection with the Optionee's duties
                                    or in the course of the Optionee's
                                    employment;

                           (ii)     intentional wrongful damage to material
                                    assets of the Company or any Subsidiary;

                           (iii)    intentional wrongful disclosure of material
                                    confidential information of the Company or
                                    any Subsidiary;

                           (iv)     intentional wrongful engagement in any
                                    competitive activity that would constitute a
                                    material breach of the duty of loyalty to
                                    the Company or any Subsidiary; or

                           (v)      intentional breach of any stated material
                                    employment policy of the Company or any
                                    Subsidiary.

         This Agreement shall not be exercisable for any number of Optioned
         Shares in excess of the number of Optioned Shares for which this
         Agreement is then exercisable, pursuant to Sections 3 and 7 hereof, on
         the date of termination of employment. For the purposes of this
         Agreement, the continuous employment of the Optionee with the Company
         shall not be deemed to have been interrupted, and the Optionee shall
         not be deemed to have ceased

                                      -3-
<PAGE>   18
         to be an employee of the Company, by reason of the transfer of his or
         her employment among the Company and the Subsidiaries or a leave of
         absence approved by the Board.

7.                ACCELERATION OF OPTION. The Option granted hereby shall become
         immediately exercisable in full in the event of (i) a Change of
         Control, (ii) the Optionee's retirement at or after age 65, (iii) the
         death of the Optionee if such death occurs while the Optionee is
         employed by the Company or any Subsidiary or (iv) the Optionee's
         permanent and total disability if the Optionee becomes permanently and
         totally disabled while an employee of the Company or any Subsidiary.

8.                NO EMPLOYMENT CONTRACT. Nothing contained in this Agreement
         shall confer upon the Optionee any right with respect to continuance of
         employment by the Company or any Subsidiary, nor limit or affect in any
         manner the right of the Company or any Subsidiary to terminate the
         employment or adjust the compensation of the Optionee.

9.                TAXES AND WITHHOLDING.  To the extent that the Company shall
         be required to withhold any federal, state, local or foreign taxes in
         connection with the exercise of the Option, and the amounts available
         to the Company for such withholding are insufficient, it shall be a
         condition to the exercise of the Option that the Optionee shall pay
         such taxes or make provisions that are satisfactory to the Company for
         the payment thereof. The Optionee may elect to satisfy all or any part
         of any such withholding obligation by (a) surrendering to the Company a
         portion of the Optioned Shares that are issued or transferred to the
         Optionee upon the exercise of the Option, and the Optioned Shares so
         surrendered by the Optionee shall be credited against any such
         withholding obligation at the Market Value per Share of such shares on
         the date of such surrender or (b) utilizing the broker assistance
         arrangement provided in Section 5.

10.               COMPLIANCE WITH LAW. The Company shall make reasonable efforts
         to comply with all applicable federal and state securities laws;
         provided, however, notwithstanding any other provision of this
         Agreement, the Option shall not be exercisable if the exercise thereof
         would result in a violation of any such law.

11.               ADJUSTMENTS.  The Board may make or provide for such
         adjustments in the number of Optioned Shares covered by the Option, in
         the Option Price applicable to the Option, and in the kind of shares
         covered thereby, as the Board, in its sole discretion, exercised in
         good faith, may determine is equitably required to prevent dilution or
         enlargement of the Optionee's rights that otherwise would result from
         (a) any stock dividend, stock split, combination of shares,
         recapitalization, or other change in the capital structure of the
         Company, (b) any merger, consolidation, spin-off, split-off, spin-out,
         split-up, reorganization, partial or complete liquidation, or other
         distribution of assets or issuance of rights or warrants to purchase
         securities, or (c) any other corporate transaction or event having an
         effect similar to any of the foregoing. In the event of any such
         transaction or event, the Board, in its discretion, may provide in
         substitution for the Option such alternative consideration as it may
         determine to be equitable in the circumstances and may require in
         connection therewith the surrender of the Option.

                                      -4-
<PAGE>   19
12.               AVAILABILITY OF COMMON STOCK. The Company shall at all times
         until the expiration of the Option reserve and keep available, either
         in its treasury or out of its authorized but unissued shares of Common
         Stock, the full number of Optioned Shares deliverable upon the exercise
         of the Option.

13.               AMENDMENTS. Any amendment to the Plan shall be deemed to be an
         amendment to this Agreement to the extent that the amendment is
         applicable hereto; provided, however, that no amendment shall adversely
         affect the rights of the Optionee under this Agreement without the
         Optionee's consent.

14.               SEVERABILITY. In the event that one or more of the provisions
         of this Agreement shall be invalidated for any reason by a court of
         competent jurisdiction, any provision so invalidated shall be deemed to
         be separable from the other provisions hereof, and the remaining
         provisions hereof shall continue to be valid and fully enforceable.

15.               RELATION TO PLAN. This Agreement is subject to the terms and
         conditions of the Plan. In the event of any inconsistency between the
         provisions of this Agreement and the Plan, the Plan shall govern.
         Capitalized terms used herein without definition shall have the
         meanings assigned to them in the Plan. The Board acting pursuant to the
         Plan, as constituted from time to time, shall, except as expressly
         provided otherwise herein, have the right to determine any questions
         which arise in connection with the Option or its exercise.

16.               SUCCESSORS AND ASSIGNS. Without limiting Section 4 hereof, the
         provisions of this Agreement shall inure to the benefit of, and be
         binding upon, the successors, administrators, heirs, legal
         representatives and assigns of the Optionee, and the successors and
         assigns of the Company.

17.               GOVERNING LAW. The interpretation, performance, and
         enforcement of this Agreement shall be governed by the laws of the
         State of Ohio, without giving effect to the principles of conflict of
         laws thereof.

18.               NOTICES.  Any notice to the Company provided for herein shall
         be in writing to the Company and any notice to the Optionee shall be
         addressed to the Optionee at his or her address on file with the
         Company. Except as otherwise provided herein, any written notice shall
         be deemed to be duly given if and when delivered personally or
         deposited in the United States mail, first class certified or
         registered mail, postage and fees prepaid, return receipt requested,
         and addressed as aforesaid. Any party may change the address to which
         notices are to be given hereunder by written notice to the other party
         as herein specified (provided that for this purpose any mailed notice
         shall be deemed given on the third business day following deposit of
         the same in the United States mail).

         IN WITNESS WHEREOF, the Company has caused this Agreement to be
         executed on its behalf by its duly authorized officer and Optionee has
         also executed this Agreement in duplicate, as of the day and year first
         above written.

                                      -5-
<PAGE>   20
                                       PENTON MEDIA, INC.

                                       By:

The undersigned Optionee hereby acknowledges receipt of an executed original of
this Stock Option Agreement.

                                              Optionee

                                      -6-<PAGE>   1

EXHIBIT  10.28

THE TERMS OF THIS AGREEMENT AND EXHIBITS ARE PROPRIETARY TO OPTICOM AND ARE
SUBJECT TO A CONFIDENTIALITY AGREEMENT SET FORTH IN SECTION 5 OF THIS AGREEMENT.

THIS AGREEMENT AND THE PRINTED PORTIONS OF ALL EXHIBITS MAY NOT BE AMENDED OR
MODIFIED (OR ANY PART DELETED OR ADDED TO) WITHOUT THE WRITTEN CONSENT OF
OPTICOM'S GENERAL COUNSEL OBTAINED IN ACCORDANCE WITH THE PROVISIONS OF SECTION
21 OF THIS AGREEMENT.

                           OPERATOR SERVICES AGREEMENT
                              (FOR COCOT PAYPHONES)

THIS AGREEMENT, dated January 21, 2000 entered into by and between ONE CALL
COMMUNICATIONS, INC., an Indiana Corporation d/b/a Opticom, of 801 Congressional
Boulevard, Suite 100, Carmel, Indiana, 46032 (herein referred to as "Opticom")
and PHONETEL TECHNOLOGIES, INC., whose address is shown on the last page of this
Agreement (herein referred to as "Customer"),

                                    PURPOSE:

-        Opticom is an operator service provider engaged in the business of
         providing operator long distance services which are more fully
         described on Exhibit "A" which is attached hereto (the "Operator
         Services") through a telecommunications network maintained by it;

-        Customer owns or controls coin-operated pay telephone equipment located
         at various places and sites (herein "COCOT Payphones"), each telephone
         or place where such telephone equipment is located having a discrete
         telephone number which is used to identify the originating location of
         the telephone (herein "ANI"), said COCOT Payphones being sometimes
         herein referred to as either "COCOT Locations" or "Locations" ; and

-        Customer desires to have Opticom provide Operator Services.

-        Customer and Opticom are parties to a Regular Long Distance Service
         Agreement and Standby Operator Services Agreement dated October 26,
         1999 (the "Long Distance and Standby Agreement");

ACCORDINGLY, OPTICOM AND CUSTOMER AGREE AS FOLLOWS:

     1. Contract for Services. Customer hereby contracts with Opticom for
Opticom to provide Operator Services for the telephone equipment at the places
and sites designated from time to time by Customer (herein "Locations"), and
Opticom agrees to provide Operator Services at such Locations in accordance with
the terms and provisions of this Agreement.

     2. Location Information. As to each Location which is to be provided
Operator Services by Opticom, Customer shall provide to Opticom in a form and in
a media mutually acceptable to
<PAGE>   2
Opticom and Customer all information and data required by Opticom to provide
Operator Services for such Location. All Locations submitted by Customer to
Opticom for Operator Services are subject to approval by Opticom.

     3. Customer Warranty as to Minimum Billings. Customer acknowledges that, in
order to provide Customer Operator Services pursuant to this Agreement, Opticom
will make a substantial investment in facilities and personnel. Accordingly,
Customer warrants that, during each six (6) billing month period commencing with
the first full billing month, the gross billings for Operator Services provided
by Opticom pursuant to this Agreement will average not less than
_________________________________________________________ per month. If, during
any of the four (4) six billing month periods during the term of this Agreement,
the average gross monthly billings for Operator Services during said six (6)
billing month period are less than ____________________________________________,
Customer shall pay to Opticom liquidated damages in the amount of
_______________________________________for each of the billing months during
said six (6) billing month period the actual gross monthly billings for that
month were less than _________________________________________, it being agreed
by the parties that the damages which would be sustained by Opticom would be
substantial but would be difficult of ascertainment. Any liquidated damages
owing by Customer may be deducted by Opticom from commissions and property
surcharges payable to Customer pursuant to this Agreement.

         a. Sale of Business by Customer. If, during the term of this Agreement,
         Customer sells all or substantially all of its assets and if the
         purchaser thereof does not assume and agree to discharge all of
         Customer's obligations under this Agreement and any Addendum thereto
         (or if Opticom is unwilling to consent, for reasonable business
         reasons, to the assignment by Customer to the purchaser of this
         Agreement and any Addendum thereto, all liquidated damages provided for
         in this Section 3 shall, at the option of Opticom, become immediately
         due and payable in full calculated for the entire period from the
         effective date of such sale through the end of the term of this
         Agreement.

     4.  Commissions.

         a. Computation. Commissions payable to Customer are determined based on
         gross billings for Minutes of Use (herein "MOU") charges and Operator
         Assisted Surcharges (herein "OAS charges") billable to third parties
         for Operator Service long distance calls placed from Customer's
         Locations. Charges for MOU are determined by utilizing the Interstate
         and Intrastate Rate Plans selected by Customer for its Locations which
         are set forth on Exhibit B which is attached hereto and made a part
         hereof. Gross commissions are determined by multiplying the commission
         percentages stated on Exhibit B for the Interstate and Intrastate Rate
         Plans applicable to each Location times the gross billings for MOU
         charges and AOS charges for Interstate calls and the gross billings for
         Intrastate calls. Gross commissions are subject to the Bad Debt
         Deduction described in Subsection b below. Billings upon which
         commissions are computed do not include (i) local, state, and/or
         federal taxes which are payable by a billed party for Operator Services
         and (ii) billings for information or directory assistance calls.
         Commissions for calls to Alaska,

                                       2
<PAGE>   3
         Hawaii, and Canada which are to be billed to United States telephone
         numbers will be paid at the applicable Intrastate commission rate.

         b. Bad Debt Deduction. Gross commissions and amounts billed for
         Customer's Property Surcharges are subject to a percentage deduction
         ("Bad Debt Deduction") for write-offs on Operator Services billings.
         The Bad Debt Deduction includes deductions and write offs for LEC
         standard bad debt deductions, unbillable and uncollectible calls,
         fraud; credits granted to billed parties upon request; rating changes
         required for billings; and call records which are either unbillable or
         uncollectible for any reason. The application of this deduction to
         gross commissions payable to Customer results in Net Commissions. The
         percentage amounts of the Bad Debt Deductions for billings for
         Interstate and Intrastate MOU charges, OAS charges, and Customer's
         Property Surcharges are stated separately on page 1 of Exhibit B.

         c. Customer's Property Surcharges. Opticom will also pay to Customer
         the Property Surcharges specified on Exhibit B which are to be
         collected by Opticom for Customer less the Bad Debt Deduction described
         above ("Adjusted Property Surcharges").

         d. Payment. Commencing on March 3, 2000, net Commissions and Customer's
         Adjusted Property Surcharges will be paid weekly by wire transfer to
         Customer's designated bank account on or before 11:00 a.m. (E.S.T.) on
         the Friday which follows the end of each Billing Week (12:01 a.m.
         Monday through 12:00 midnight Sunday) based upon Operator Services
         billings rendered by Opticom during the previous Billing Week. Any true
         ups which are necessary shall be made in the third weekly payment each
         month. No commissions and Adjusted Property Surcharges will be payable
         for any billing week for which the total commissions and Adjusted
         Property Surcharges otherwise payable to Customer do not exceed Ten
         Dollars ($10.00), and any such amounts not paid for any month shall not
         carry over to future Billing Weeks

         e. Reports. For each billing month, Opticom will provide to Customer an
         original computer-generated monthly report which will include
         individual call detail for each Operator Services Call made from each
         of Customer's Locations during the billing month. Opticom will use
         reasonable efforts to provide such reports as Customer reasonably
         requests.

         f. Changes in Opticom Billing Rates. Opticom may, from time to time
         with written notice to Customer, change the rates it charges third
         parties for MOU under the Rate Plans selected by Customer and/or the
         amount of Operator Surcharges payable to Opticom by such third parties
         for Operator Services provided by Opticom. Customer shall have a right
         to terminate this Agreement upon not less than thirty (30) days written
         notice to Opticom if Opticom makes any change in such billing rates
         which has a material adverse effect upon Customer and its business.

     5. Confidentiality. The parties hereto agree to keep and maintain the terms
and provisions of this Agreement in confidence, and Opticom agrees to keep and
maintain the names, addresses, and ANI's of all of Customer's Operator Service
Locations, confidential and not to disclose the

                                       3
<PAGE>   4
same to any third party except for such disclosure as may be compelled by legal
process or required by any regulatory agency having jurisdiction and such
disclosure as may be necessary in order for Opticom to arrange for Operator
Services for such Locations. Opticom acknowledges and agrees that information
provided and submitted by Customer to Opticom as the identity of owners and
operators of Locations is and shall always remain confidential information
subject to the provisions of this section of this Agreement, and Opticom agrees
that at no time will it utilize such confidential information for any purpose
other than to arrange to provide Operator Services to such Locations for
Customer pursuant to this Agreement, nor will Opticom disclose such confidential
information to any other person, firm, corporation or other entity without the
express written consent of Customer.

     6. Term of Agreement. The initial term of this Agreement shall be for a
period of twenty-five (25) months commencing on the date hereof after which this
Agreement shall continue on a month-to-month basis until terminated by either
party on not less than thirty (30) days written notice.

     7. Quality of Service. Opticom agrees to provide the Operator Services
hereunder to Customer's Locations in conformity with the appropriate industry
standards for like services and in accordance with the performance standards set
forth on Schedule 1 which shall be signed and dated by both parties and attached
hereto.

     8. Branding. At Customer's option, all operator calls handled by Opticom
from Customer's COCOT Locations will be branded in Customer's name.

     9. 211 Trouble Calls. Opticom will answer, respond to, and process 211
trouble reports ("211 Calls") from Customer' COCOT Locations. Opticom will also
process requests for refunds and requests for credits ("Home Credits"). Customer
shall pay a fee of ______________________________ per trouble ticket to process
Home Credits, and Customer shall also pay all of Opticom's costs and expenses
incurred in processing and paying refunds and in granting credits. To foster
public relations, all callers will be offered a courtesy long distance call of
three (3) minutes in duration without charge to the caller. For those callers
accepting such a courtesy call, Customer will be charged a fee of
_____________________________________ per call. Up to five hundred (500)
completed trouble ticket calls (including those trouble ticket calls which
involve courtesy calls) will be provided for Customer each month without charge
at no cost to Customer. If the number of 211 Calls processed by Opticom in any
month is in excess of five hundred (500), Customer shall pay a charge of
___________________ for each 211 Call in excess of the five hundred (500). Those
trouble reports which include courtesy calls will be counted as part of the
monthly free five hundred (500) call ceiling. All charges owing by Customer to
Opticom for trouble reports will be deducted from commissions and property
surcharges payable to Customer pursuant to this Agreement.

     10. Letters of Authorization ("LOA's"). Prior to Opticom commencing
Operator Services for any Location which is not owned by Customer ("Non-Owned
Location"), Customer shall obtain an authorization ("Authorization") from such
Location which either directly authorizes Opticom to provide service to the
Location or authorizes Customer, as agent for the Location, to select an
operator services provider, such as Opticom, to provide operator long distance
services for such

                                       4
<PAGE>   5
Location. Such authorization shall comply with (i) all applicable local, state,
and federal regulations (ii) all requirements and procedures of the local
operating company (LEC) with respect to the selection of a preferred
interconnection long distance carrier for the Location and (iii) all procedures
and requirements of Opticom. As to all Non-Owned Locations submitted by Customer
to Opticom, Customer represents and warrants that Customer has obtained for the
Location an Authorization which complies with the requirements of this
Agreement, that such Authorization is valid and authentic and constitutes and
represents the most current Authorization for said Location to the best of
Customer's knowledge, and Customer agrees to and shall indemnify and hold
harmless Opticom from and against all losses, claims, fines, penalties, and
expenses (including reasonable attorney fees) asserted or levied against or
sustained or incurred by Opticom arising from or related to the invalidity of
any Authorization or the contention that such Authorization was superseded by a
more recent Authorization. As to all Locations owned by Customer (COCOT's),
Customer represents and warrants to Opticom that the telephone equipment at such
Locations to be served by Opticom pursuant to this Agreement is owned by
Customer and that Customer has the power and authority to select the operator
service provider for such Locations without the consent, approval, or
authorization of any other person, firm, corporation, or other entity, and
Customer agrees to and shall indemnify and hold harmless Opticom from and
against all claims, liabilities, damages, fines, penalties, or other costs and
expenses, including reasonable attorney fees, incurred or paid by Opticom
arising out of or which involves, in any manner, the contention of a third party
(i) that Customer is or was not the owner of the COCOT telephone equipment at
such Locations or (ii) that Customer did not have the power and authority to
select the operator service provider for such Locations without the consent,
approval, or authorization of any other person, firm, corporation, or other
entity. In the event another customer of Opticom presents to Opticom an
Authorization for a Location which is then subject to Customer's Authorization
or in the event Customer presents to Opticom an Authorization for a Location
which is then subject to an Authorization of another customer of Opticom,
Customer authorizes and empowers Opticom, in its sole and absolute discretion
exercised in good faith pursuant to internal Opticom policies consistently and
uniformly applied, to determine which Authorization is to be honored.

     11. Regulatory Matters. Customer and all Location owners and/or operators
shall at all times comply with and conform to all federal, state, and local
laws, rules, regulations, ordinances, tariffs, dockets, orders, and guidelines
applicable to the Operator Services to be provided by Opticom hereunder
including all requirements with regard to posting guidelines, alternate carrier
access, branding, transfer of calls to local exchanges, screening, blocking, and
routing of emergency calls.

     Customer and all Locations shall permit Opticom to take whatever steps are
necessary to insure that Opticom is in compliance with all of the regulations
and requirements pertaining to the provision of Alternate Operator Services as
established by the Federal Communications Commission and the regulatory
authority(ies) of the state wherein such services will be provided.

     Opticom and Customer shall each indemnify, defend, and hold the other
harmless of and from any and all claims, liabilities, fines, penalties, or other
costs and expenses, including reasonable attorney fees, incurred or paid by such
party by reason of the other party's failure to

                                       5
<PAGE>   6
comply with any applicable federal or state laws, rules, regulations, tariffs,
dockets, laws, ordinances, orders, or guidelines or other regulatory
requirements applicable to such party.

     12. Access and Other Charges. Customer shall be responsible for all
Presubscribed Interexchange Carrier Charges imposed with regard to Customer's
Locations and the telephone lines serving such Locations; any FCC Universal
Service Fund Contributions and Assessments levied and imposed upon Customer as a
telecommunications provider; and any other similar charges and assessments which
may be due and payable with regard to either Customer's telephone lines and
equipment or with regard to the telecommunications services provided by Customer
at its Locations.

     13. Location Relations. Customer acknowledges that, by reason of regulatory
requirements requiring the identification of Opticom as the Operator Services
Provider at Locations, the persons who own or control Locations will likely
contact Opticom in the event there exist unresolved problems between the
Locations and Customer regarding the payment of commissions by Customer for the
Location or other matters and that the industry reputation of Opticom may be
adversely affected if such problems are not satisfactorily resolved in an
expeditious manner. Customer agrees to promptly endeavor to satisfactorily
resolve problems with Location owners and operators which are brought to
Customer's attention by Opticom, and Customer agrees that, if Customer fails to
promptly resolve such complaints, Opticom may take whatever measures it deems
appropriate to resolve the problem and maintain its reputation in the industry.

     14. Suspension and Termination of Services. Opticom shall have the right at
any time and from time to time, with as much notice to Customer as is
practicable under the circumstances, to temporarily suspend or terminate all or
some Operator Services provided at or to any Location because of (i) defects or
malfunctions of or in subscriber equipment at the Location over which Opticom
has no control; (ii) an unacceptable level of fraudulent or uncollectible
telephone calls; (iii) for violations of local, state, or federal laws and
regulations; (iv) for violations of published rules, regulations, and tariffs;
(v) an unacceptable quality of transmission by reason of factors over which
Opticom has no control; (vi) abuse of the Operator Services provided hereunder;
or (vii) compliance with any order of a regulatory agency having jurisdiction.

     15. Relationship of the Parties. Opticom and Customer are independent
parties, and there exists no relationship of joint venture, partnership, or
agency between them. Customer and Opticom each agree to indemnify, defend, and
hold each other harmless from all losses, claims, costs, including reasonable
attorney fees, damages, or expenses arising out of, in whole or in part,
directly or indirectly, the acts or omissions of such party or persons acting
for or on its behalf.

     16. Force Majeure. To the extent that either Customer or Opticom shall be
prevented or delayed from performing hereunder or giving any notice because of
any event or circumstance over which such parties have no reasonable control
(including, without limitation, war, fire, civil commotion, strike, flood, power
shortages or outages, communication breakdowns and outages, acts or orders of
regulatory agencies having jurisdiction, and the like), then such party shall be
excused from performing or giving such notice for the duration of such event or
force majeure,

                                       6
<PAGE>   7
provided, however, that if the duration of the delay caused by such event shall
exceed thirty (30) days, the party who was to benefit from the performance of
such act shall have the right to terminate this Agreement by giving written
notice to the other party.

     17. Default and Termination. In addition to all other rights of termination
as herein provided, both Customer and Opticom shall have a right to terminate
this Agreement by reason of any material default in the performance of duties
and responsibilities by the other party if such default is not cured within
thirty (30) days after written notice of such default is given to the defaulting
party. Other than for (i) obligations for the payment of money or commissions
due pursuant to this Agreement, (ii) indemnity obligations which are expressly
provided for in this Agreement, (iii) confidentiality obligations under Section
5 of this Agreement, and (iv) amounts or damages (liquidated or otherwise) for
which either party is liable pursuant to the terms and provisions of any
addendum to this Agreement, any loan agreement between the parties, or any other
agreement which supplements this Agreement (all of which obligations shall
survive termination of this Agreement), neither party hereto shall have any
liability to the other party for any direct, indirect, incidental,
consequential, punitive or other damages sustained by a party by reason of the
default of the other party under this Agreement, it being agreed that
termination of this Agreement shall be the sole recourse and remedy of a
non-defaulting party for the default of the other party.

     In the event (i) this Agreement is terminated by Opticom for any reason,
(ii) this Agreement terminates at the end of any term by reason of the election
of either party not to permit this Agreement to renew for another term, or (iii)
Opticom elects to terminate Operator Services for any Location of Customer for
any reason, Customer shall be responsible for diligently and timely changing,
prior to the effective date of any such termination, the preferred
interconnection carrier from Opticom to another operator services provider for
all Locations of Customer affected by any such termination. If Customer fails to
change the preferred interconnection carrier for any Location prior to the
effective date of the termination of this Agreement or termination by Opticom of
such Location(s) and such Location(s) remains on Opticom's Operator Services
network after the effective date of termination, no commissions or property
surcharges will be payable to Customer for any Operator Services provided by
Opticom for such Location after the effective date of the termination. As to all
Locations of Customer which remain on Opticom's Operator Services network
following termination of this Agreement or termination by Opticom of such
Location(s), Customer agrees to and shall indemnify, defend, and hold Opticom
harmless of and from any and all claims, liabilities, fines, penalties, or other
costs and expenses, including reasonable attorney fees, incurred or paid by
Opticom by reason of the Customer's failure (i) to change the preferred
interconnection carrier for such Location(s) or (ii) to comply with any
applicable federal or state laws, rules, regulations, tariffs, dockets, laws,
ordinances, orders, or guidelines or other regulatory requirements applicable to
Customer and such Locations, Customer expressly agreeing that this indemnity
obligation shall survive termination of this Agreement.

     18. Changed Business and Economic Conditions. The parties hereto recognize
and affirm that the Commission Schedules set forth on Exhibit B are based upon
current business and economic conditions in the telecommunications industry in
the United States and that such business and economic conditions may adversely
change in the future by reason of competition,

                                       7
<PAGE>   8
industry consolidation, governmental regulation, loss by Opticom of current
network facilities or arrangements, and factors which are beyond the control of
Opticom. The parties further recognize that changed business and economic
conditions may make it uneconomical and impractical, with regard to existing
Commission Schedules, for Opticom to profitably accept new Locations, to
profitably continue to provide some Operator Services, to profitably continue to
serve some or all existing Locations, and to otherwise be profitably competitive
in the marketplace with regard to existing and future Locations. In the event
bona fide changed business and economic conditions do occur and Opticom, in good
faith, determines that it is uneconomical and impractical, in relation to
existing Commission Schedules, for Opticom to profitably serve some or all
existing Locations and to accept new Locations and to otherwise be profitably
competitive in the marketplace with regard to some or all existing Locations and
future Locations, Opticom may give Customer written notice of such situation and
may, on sixty (60) days' notice to Customer, terminate some or all existing
Locations or some Operator Services provided to Locations, in which event
Customer's right to receive commissions as to such terminated Locations or
terminated Operator Services shall cease, and Customer shall have no recourse
against Opticom for loss of commissions occurring by reason of Opticom's
termination of such Locations or services, but Opticom shall remain accountable
to Customer for all commissions for Operator Services usage by such terminated
Locations prior to the effective date of termination. In any such situation,
Opticom agrees to negotiate in good faith with Customer regarding a new mutually
satisfactory arrangement between Customer and Opticom pursuant to which the
termination of existing Locations or Operator Services may be avoided and new
Locations can be accepted. In the event the parties are unable to reach a new
mutual agreement within a reasonable period of time, Customer may terminate this
Agreement on not less than thirty (30) days written notice to Opticom

     19. Bankruptcy. In the event either Opticom or Customer becomes bankrupt
(files a petition in bankruptcy or has an involuntary petition in bankruptcy
filed against them and said petition is not dismissed within sixty (60) days of
such filing), the other party may elect to terminate this Agreement by written
notice effective at the end of the calendar month such notice was given. If
Opticom becomes bankrupt, all commissions owing to Customer shall become
immediately due and payable and Customer may immediately commence to transfer
Locations to another operator services provider, in which event this Agreement
shall continue in full force and effect as to all matters, including commissions
for Customer, as to all Locations which remain on Opticom's network for as long
as they remain on Opticom's network. In the event Customer becomes bankrupt,
Opticom may, at its option, make advances to Locations for unpaid commissions,
surcharges, and other compensation owing to such Locations by Customer in order
to maintain such Locations on Opticom's network, and, if Opticom does so,
Opticom may repay itself for such advances out of commissions due and payable to
Customer for business arising subsequent to the date Customer became bankrupt.

     20. Arbitration. Except as may be expressly provided otherwise in an
addendum to this Agreement or in any other agreement which is entered into be
the parties to this Agreement, all claims or disputes arising out of this
Agreement, the relationship of the parties created by this Agreement, or the
alleged breach thereof shall be decided by arbitration in accordance with the
Commercial Arbitration Rules of the American Arbitration Association then
obtaining unless the parties mutually agree otherwise. Notice of the demand for
arbitration shall be submitted in

                                       8
<PAGE>   9
writing to the other party and to the American Arbitration Association. All
arbitration proceedings and hearings shall be held in Indianapolis, Indiana. Any
arbitration award shall be binding and enforceable in any court having
jurisdiction of the parties hereto. The cost of the arbitration proceeding,
exclusive of each party's own attorney fees and out-of-pocket expenses, shall be
borne equally by the parties. If the provisions of any addendum or other
agreement between the parties provides for an alternate means of dispute
resolution (including litigation in a court of law), the provisions of such
addendum or other agreement shall supersede this agreement with regard to the
resolution of the claims arising out of or under such addendum or other
agreement.

     21. Modification and Amendment. The advance written approval of Opticom's
General Counsel shall be required to amend, modify, or add to this Agreement,
the printed portions of all attached exhibits, and any approved Addendum
thereto. To be effective, such written approval must be endorsed in writing on
this Agreement or by way of an attachment hereto. Any modification or amendment
(or any deletion from or addition to) the form of this Agreement, its exhibits,
or any addendum to this Agreement not so approved in writing by such General
Counsel shall be void and of no effect even if signed by an officer of Opticom.
No officer, employee, sales representative, or agent of Opticom other than its
General Counsel has the authority to vary or modify the form of this Agreement,
the printed portions of the exhibits, or any approved addendum or to otherwise
agree or consent to any amendment or addendum thereto. Opticom's General Counsel
is:

                                   Jeffrey R. Kinney, Esq.
                  Mailing Address: 1 Riverfront Place, 20 N.W. First Street,
                                   Suite 700, Evansville, IN  47708
                  Courier Address: same as above
                  Telephone Number:(812) 425-5200
                  Fax Number:      (812) 425-2464
                  E-Mail:          jkinney@kylaw.com

     22. Notices. Any notice either party desires to give to the other party
hereunder shall be in writing and shall be delivered by first class United
States mail, postage prepaid, addressed to the parties at their addresses set
forth below unless such addresses are changed by written notice from time to
time. Written notices may also be faxed to either party, but, to be effective,
the notice must also be mailed as aforesaid.

                  If to Opticom:    One Call Communications, Inc.
                                    801 Congressional Boulevard, Suite 100
                                    Carmel, Indiana  46032
                                    Attn:  President
                                    Fax Number:  (317) 575-3231

                  If to Customer:  To the Customer at the address set
                                   forth below.

     23. Non-Waiver. No term or provision of this Agreement shall be deemed
waived and no breach or default shall be deemed excused unless such waiver or
consent shall be in writing and

                                       9
<PAGE>   10
signed by the party claimed to have waived or consented. No consent by any party
to, or waiver of, a breach or default by the other, whether express or implied,
shall constitute a consent to, waiver of, or excuse for any different or
subsequent breach or default.

     24. Assignment. This Agreement may not be assigned by Customer except with
the written consent of Opticom, which consent shall not be unreasonably
withheld, provided,however, Customer may, without Opticom's consent, assign its
rights to receive payment of commissions and Property Surcharges to secure
financial obligations of Customer.

     25. Governing Law. This Agreement and any dispute relating thereto shall be
governed by the laws of the State of Indiana.

     26. Binding Effect. This Agreement shall be binding upon and inure to the
benefit of the successors and permitted assigns of the parties.

     27. Headings and Titles. The headings and titles in this Agreement are for
convenience of reference only and shall not be construed to define or limit any
of the terms herein or affect the meanings or interpretations of this Agreement.

     28. The Long Distance and Standby Agreement and Other Agreements. The Long
Distance and Standby Agreement is terminated as of the date of this Agreement.
This Agreement shall supersede and replace all existing arrangements or
agreements between Opticom and Customer for the provision of telecommunications
services by Opticom for Customer.

29. Execution; Counterparts; Facsimile Delivery. A copy of this Agreement signed
by one party which is received by the other party by means of a facsimile
transmission made by the signing party shall be binding upon the signing party
and shall constitute delivery of this Agreement by the signing party for all
purposes. The exchange by the parties of duly signed counterpart copies of this
Agreement transmitted by such parties to each other by facsimile transmission
shall result in a legally enforceable contract binding upon both parties.

                         THE FOREGOING IS OUR AGREEMENT.

ONE CALL COMMUNICATIONS, INC.                PHONETEL TECHNOLOGIES, INC.

By:/s/ Brad Benge                            By:/s/ John D. Chichester
     Executive Vice President                    President

                                             Address: North Point Tower
                                                      1001 Lakeside Avenue
                                                      Seventh Floor
                                                      Cleveland, OH  44114

                                       10
<PAGE>   11
                                   EXHIBIT "A"

     The following is a listing of types of Opticom services available at this
time.

     All long distance billable calls (InterLATA, IntraLATA, and/or Interstate),
     except as noted below, which are originated from Customer's Locations, but
     which either (i) are not billed to Customer or to the Location, and/or (ii)
     require operator assistance, including, but not limited to:

            (a)   Operator assisted calls utilizing participating Bell Operating
                  Company ("BOC") calling cards and other calling cards issued
                  by other operating companies;

            (b)   Operator assisted calls utilizing participating commercial
                  credit cards;

            (c)   Collect calls;

            (d)   Calls which are billed to third party telephones;

            (e)   Person-to-Person Credit Card and/or Calling Card calls;

            (f)   0 + Area Code + seven digits + credit cards ("0+") listed (a)
                  and (b) above;

            (g)   0 without additional digits ("0-").

     Services to be provided by Opticom do not include Local Operator Services
     which shall mean telephone calls (local collect, local person-to-person
     collect, local billed to a calling card, local third party person-to-person
     calls billed to another number) which are originated in and terminate in a
     geographic area which is a toll free local calling area. If Customer's
     Locations are used for Local Operator Services which cannot be billed by
     Opticom on an elapsed time basis, the difference between the charge allowed
     to be collected by Opticom and the elapsed time charges shall be deducted
     from amounts payable to Customer.

     Operator Services for International Long Distance Calls from Customer's
     Locations may be arranged for by Customer pursuant to an Addendum to the
     Operator Services Agreement.

                                       11
<PAGE>   12
                                   EXHIBIT B                        Page 1 of 4

                   COMMISSION AND PROPERTY SURCHARGE SCHEDULES

The commission percentage rate specified below for each of the Interstate and
Intrastate Rate Plans (Billing Groups) selected by Customer for its Locations
used to determine the amount of commissions payable to Customer is applied to
Adjusted Billings for Minutes of Use ("MOU") charges and operator assisted
surcharges ("OAS charges") for Interstate or Intrastate Telephone Calls made
from Customer's Locations under each of the Rate Plans applicable to such
Locations. Customer may select any of the Rate Plans for different Locations,
but only one Interstate and one Intrastate Rate Plan may be selected for a
Location. Opticom will bill and, subject to the applicable Bad Debt Deduction,
collect for Customer the Property Surcharges ("PIF") specified below for each
completed Interstate and, where applicable, Intrastate Long Distance Call.

                              INTERSTATE RATE PLANS

                  The Interstate Bad Debt Percentage is ______%

            / /   Check here if Tiered, Volume-Sensitive Commission Rate Plans
                  are attached and are to to be used in lieu of the following
                  Interstate Rate Plan Schedule.
<TABLE>
<CAPTION>

                                       Billing
         Rate Plans                     Group
         ----------                     -----
<S>                                   <C>
         Optibase                         115

         New Optibase-Day                 116

         Old Optibase-Day                 117

         Optimize                         119

         Optfive                          120

         Optiplus                         121

         Optimum                          123

         Optispan                         125

         Opti75                           126

         Optimax                          127

         Optibest                         138

         Other

         Other

         Other

</TABLE>
<PAGE>   13
                                                                     Page 2 of 4

                              INTRASTATE RATE PLANS

                  The Intrastate Bad Debt Percentage is ______%

A Customer may elect to use either (i) the General Intrastate Rate Plan which is
set forth below for all States in which the Customer does business or (ii) the
State-specific Rate Plans which

      are set forth one the following pages or (iii) a combination of both.

/ /  Check here if the General Intrastate Rate Plan is to be used in all States

/ / Check here if the General Intrastate Rate Plan is to be used in all states
EXCEPT for those states for which information is completed on the following
pages for state-specific rate plans.

                   GENERAL INTRASTATE RATE PLAN FOR ALL STATES

               Billing Group                         Commission Rate
<PAGE>   14
                             INDIVIDUAL STATE RATE PLANS            Page 3 of 4

Instructions: Complete Commission Rates ONLY for rate plans in states where (i)
Customer will do business or (ii) those states where Customer does not want the
General Intrastate Plan to be used.
<TABLE>
<CAPTION>
                              Billing
        State                 Group
        -----                 -----
<S>                          <C>
     Alabama                  18
     Alaska                   18
     Arizona                  18
     Arkansas                 18
     California               18
                              10
                               7
                              20
     Colorado                 18
                              28
     Connecticut
     DC (see Washington, DC)
     Delaware                 18
     Florida                  18
                              44
     Georgia                  18
     Hawaii                   18
     Idaho                    18
     Illinois                 18
                               2
                              57
     Indiana                  18
                               7
     Iowa                     18
     Kansas                   18

     Kentucky                 18
     Louisiana                18
     Maine                    18
     Maryland                 18
     Massachusetts            18
     Michigan                 18
                              32
                              31
     Minnesota                18
     Mississippi              18
     Missouri                 18
                              40
     Montana                  18
                              17
                              40
     Nebraska                 18
     Nevada                   18
     New Hampshire            18
                              22
     New Jersey               18
                              38
                              55
     New Mexico               18
     New York                 18
     North Carolina           18
                             151

     North Dakota             18
     Ohio                     18
     Oklahoma                 18
                             150
                              35
     Oregon                   18
                              39
     Pennsylvania             18
     Rhode Island             18
     South Carolina           18
     South Dakota             18
     Tennessee                18
     Texas                    18
                              43
                              53
     Utah                     18
     Vermont                  18
     Virginia                 18
                               9
     Washington               18
                              39
     Washington, DC           18
     West Virginia            18
     Wisconsin                18
     Wyoming                  18
</TABLE>

                               BILLING GROUP NOTES

Billing Group 7--Confinement Facilities
Billing Group 18--Pay Telephones in Cal and Virginia
Billing Group 22--Customer-Owned Pay Telephones (COCOT's) in NH
Billing Group 39--Local Default for OR and WASH
Billing Groups 43 or 53--Pay Telephones in Tex
Billing Group 44--Customer-Owned Pay Telephones (COCOT's) in Fla

<PAGE>   15
                     INTERSTATE PROPERTY SURCHARGES (PIF)           Page 4 of 4

Interstate Property Surcharges are subject to the Bad Debt Deduction percentage
stated on Page 1 of this Exhibit B.

/ /  Check here if a Ramp-Up Interstate Property Surcharge (PIF) schedule is
      attached and is to be used in lieu of the following-stated Interstate
      Property Surcharge amount.

Amount of Interstate Property Surcharge (PIF) per completed Interstate call
$_______________

/ /   Check here if the Interstate Property Surcharges are to vary in amount
      from Location to Location as designated in writing by Customer. (If this
      is applicable, the amount of the Interstate Property Surcharge for any
      Location may not exceed the Property Surcharge amounts stated above.)

                         INTRASTATE PROPERTY SURCHARGES

Property Surcharges for Intrastate Long Distance Operator Service Telephone
Calls may be prohibited in some states, limited in amount in other states,
further restricted in some states as to (i) the types of telephones utilized to
make such calls, eg. only pay telephones, only COCOT pay telephones, etc., (ii)
the places where the telephone is located, eg. only hotel and motel rooms, only
hospitals, no confinement facilities, etc., (iii) the locale where the telephone
equipment is located, eg. New York City, (iv) whether such calls are IntraLata
or InterLata, and (v) other variables. Customer may elect to have billed the
maximum Intrastate Property Surcharge permitted in the state(s) where Customer's
Locations are located or a lesser amount. Intrastate Property Surcharges are
subject to the Intrastate Bad Debt Deduction percentage stated on Page 1 of this
Exhibit B.

/ / Check here if the authorized Intrastate Property Surcharges are to vary in
amount from Location to Location as designated in writing by Customer.

/ /  Check here if Opticom is to bill the maximum authorized Intrastate Property
     Surcharge for all of Customer's Locations to the extent permitted by law in
     each state where Customer has Locations.

/ / Check here and complete the following table if the following Intrastate
Surcharges are to be uniformly billed in the following States for the following
types or classes of telephones, places, or locales to the extent permitted by
law. Use more than one line for each state if necessary. (The use of this table
will not prevent Customer from varying the amount of the surcharge for certain
Locations as designated in writing by Customer.)
<TABLE>
<CAPTION>

                          Type of Telephone                  Amount of
                            or Locations                    Intrastate
                        (eg. COCOT, payphone,                Property
       State              hotel/motel, NYC)                  Surcharge
       -----              -----------------                  ---------
<S>                     <C>                               <C>

                                                           $
</TABLE>

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00006-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00006-of-00352.parquet"}]]