<PAGE>

                                                                  Exhibit 10u









                          AMERITECH CORPORATE RESOURCE
                               SEVERANCE PAY PLAN


             (As Amended and Restated Effective as of May 10, 1998)
<PAGE>

                          AMERITECH CORPORATE RESOURCE
                               SEVERANCE PAY PLAN

             (As Amended and Restated Effective as of May 10, 1998)

                               TABLE OF CONTENTS

 SECTION                                                         PAGE
 -------                                                         ----
    1        General
             1.1      History and Purpose                          1
             1.2      Subsidiaries, Affiliates and Employers       1
             1.3      Plan Administration                          1
             1.4      Source of Payments                           2
             1.5      Notices                                      2
             1.6      Gender and Number                            2
             1.7      Action by Employers                          2
             1.8      Delegations of Authority                     2

    2        Participation                                         2
             2.1      Participation                                2
             2.2      Cessation of Participation                   3

    3        Employment After a Change in Control                  3
             3.1      Change in Control                            3
             3.2      Employment After Change in Control           4

    4        Severance Benefits                                    5
             4.1      Entitlement to Severance Benefits            5
             4.2      Cause                                        5
             4.3      Disability                                   6
             4.4      Termination for Good Reason                  6
             4.5      Severance Benefits                           6
             4.6      Reduction for Other Severance Payments       7
             4.7      Tax Limitations                              8
             4.8      Mitigation and Set-Off                       8
             4.9      Non-Alienation                               8
             4.10     Withholding                                  8

    5        Enforcement                                           8
             5.1      Governing Laws                               8
             5.2      Arbitration of All Disputes                  9
             5.3      Reimbursement of Costs and Expenses          9

    6        Amendment or Termination                              9
             6.1      Amendments and Terminations                  9
             6.2      Participant Rights                          10
             6.3      Successors                                  10
<PAGE>

                          AMERITECH CORPORATE RESOURCE
                               SEVERANCE PAY PLAN

             (As Amended and Restated Effective as of May 10, 1998)

                                   SECTION 1
                                   ---------

                                    General
                                    -------

         1.1. History and Purpose. The Ameritech Corporate Resource Severance
Pay Plan (the "Plan"), formerly known as the Ameritech Senior Management
Severance Pay Plan, was established by Ameritech Corporation, a Delaware
corporation (the "Company"), effective as of January 1, 1989 to promote the
long-term financial interests of the Company and its shareholders by (i)
providing the executives of the Company and its Subsidiaries and Affiliates (as
defined in subsection 1.2) with assurances of fair and equitable treatment as
well as severance benefits consistent with competitive practices in the event of
a Change in Control of the Company (as defined in subsection 3.1) and (ii)
reducing the risk of departures and distractions of key executives in a Change
in Control situation which would be detrimental to the Company and its
shareholders. The following provisions constitute an amendment, restatement and
continuation of the Plan, effective as of May 10, 1998.

         1.2. Subsidiaries, Affiliates, and Employers. The term "Subsidiary"
means any corporation of which the Company directly or indirectly owns at least
50% of the combined voting power of all classes of stock entitled to vote. The
term "Affiliate" means any corporation other than a Subsidiary, which would be a
member of a controlled group of corporations with the Company under Section
1563(a) of the Internal Revenue Code of 1986, as amended (the "Code"). The
Company and each Subsidiary and Affiliate which, with the consent of the
Company, adopts the Plan, are referred to below, collectively, as the
"Employers" and individually as an "Employer."

         1.3. Plan Administration. The authority to control and manage the
operation and administration of the Plan shall be vested in the Ameritech
Severance Pay Plan Committee, the members of which shall be appointed by, and
may be removed by, the Chairman of the Company (the "Committee"). The Committee
shall have the power to adopt rules and regulations and prescribe forms for
carrying out the purposes and provisions of the Plan. The Committee has the
exclusive right and discretion to interpret the provisions of the Plan and the
entitlement to benefits under the Plan. Any decision made by the Committee on
any matter within its discretion is conclusive, final and binding on all
persons, and not subject to further review. The Committee shall grant or deny
claims for benefits under the Plan and authorize disbursements. Adequate notice,
pursuant to applicable law and prescribed Company practices, shall be provided
in writing to any Participant whose claim has been denied, setting forth the
specific reasons for such denial. The review and appeal procedures for any
Participant whose claim has been denied shall also be the responsibility of the
Committee.


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         1.4. Source of Payments. The obligations of the Employers under the
Plan are solely contractual, and any amount payable under the terms of the Plan
shall be paid from the general assets of the Employers or from one or more
trusts, the assets of which are subject to the claims of the Employers' general
creditors.

         1.5. Notices. Any notice or document required to be given under the
Plan shall be considered to be given if delivered or mailed by registered mail,
postage prepaid, if to an Employer, to the Secretary of the Committee in care of
the Company at the Company's principal business address or, if to a Participant,
at the last address of such Participant filed with the Employer.

         1.6. Gender and Number. Where the context admits, words in any gender
shall include any other gender, words in the singular shall include the plural
and the plural shall include the singular.

         1.7. Action by Employers. Any action required or permitted to be taken
by any Employer under the Plan shall be by resolution of its Board of Directors
(or, if such Employer does not have a Board of Directors and is managed by its
shareholder or shareholders, of such shareholder or shareholders) or by writing
of a duly authorized officer of the Employer.

         1.8. Delegations of Authority. As used in the Plan, the terms "Board of
Directors", "Company", "Employer" or "Committee" shall include, where
appropriate, any applicable subcommittee or any duly authorized delegate of the
Board of Directors, the Company, an Employer or the Committee, as the case may
be. Such duly authorized delegate may be an individual or an organization within
the Board of Directors, the Company, an Employer or the Committee or may be an
unrelated third party individual or organization.


                                   SECTION 2
                                   ---------

                                 Participation
                                 -------------

         2.1. Participation. The following individuals shall be Participants in
the Plan:

         (a)      Any management employee on the active roll of an Employer who
                  has attained any of salary grades CR 1 through 9; and

         (b)      Any management employee on the active roll of an Employer who
                  has attained any of Investment Management salary grades IM10
                  through IM12; and

         (b)      Any management employee on the active roll of an Employer who
                  is an attorney who has attained any of salary grades IV
                  through VI.

Anything in the Plan to the contrary notwithstanding, any individual hired on or
after May 11, 1998 either into a position, or who later becomes employed in a
position, which would otherwise
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qualify him to be a Participant pursuant to this subsection (excluding
individuals hired prior to May 11, 1998 and transferred or promoted in the
normal course of business into such a position from any position with another
Employer, Subsidiary or Affiliate) shall not be entitled to receive any benefits
under, nor any of the protections provided in accordance with, the Plan as a
result of a Change in Control which occurs pursuant to the Agreement and Plan of
Merger among Ameritech Corporation, SBC Communications Inc. and SBC Delaware,
Inc., dated as of May 10, 1998.

         2.2. Cessation of Participation. An employee shall cease to be a
Participant in, or have any rights under, the Plan as of the date, if any, prior
to a Change in Control on which he ceases to be a member of a class of employees
designated as Participants in accordance with subsection 2.1. All employees of
an Employer other than the Company shall cease to be Participants in, or have
any rights under, the Plan as of the date, if any, on which the Employer ceases
to be a Subsidiary or Affiliate prior to a Change in Control.


                                   SECTION 3
                                   ---------

                      Employment After a Change in Control
                      ------------------------------------

         3.1. Change in Control. For purposes of determining the rights of any
Participant under the Plan, the term "Change in Control" means a change in the
beneficial ownership of the Company's voting stock or a change in the
composition of the Company's Board of Directors which occurs as follows:

         (a)      any "person" (as such term is used in Sections 13(d) and
                  14(d)(2) of the Securities Exchange Act of 1934) other than:

                 (i)  a trustee or other fiduciary holding securities under an
                      employee benefit plan of the Company; or

                (ii)  the Participant or any person acting in concert with the
                      Participant;

                  is or becomes a beneficial owner (as defined in Rule 13d-3
                  under the Securities Exchange Act of 1934), directly or
                  indirectly, of stock of the Company representing 20% or more
                  of the total voting power of the Company's then outstanding
                  stock; provided, however, that this paragraph (a) shall not
                  apply to any tender offer made pursuant to an agreement with
                  the Company approved by the Company's Board of Directors and
                  entered into before the offeror has become a beneficial owner
                  of stock of the Company representing 5% or more of the
                  combined voting power of the Company's then outstanding stock;

         (b)      a tender offer is made for the stock of the Company, and the
                  person making the offer owns or has accepted for payment stock
                  of the Company representing 20% or more of the total voting
                  power of the Company's then outstanding stock;

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<PAGE>

                  provided, however, that this paragraph (b) shall not apply to
                  any tender offer made pursuant to an agreement with the
                  Company approved by the Company's Board of Directors and
                  entered into before the offeror has become a beneficial owner
                  of stock of the Company representing 5% or more of the
                  combined voting power of the Company's then outstanding stock;

         (c)      during any period of twelve consecutive months there shall
                  cease to be a majority of the Board of Directors comprised as
                  follows: individuals who at the beginning of such period
                  constitute the Board of Directors and any new director(s)
                  whose election by the Board of Directors or nomination for
                  election by the Company's stockholders was approved by a vote
                  of at least 80% of the directors then still in office who
                  either were directors at the beginning of the period or whose
                  election or nomination for election was previously so
                  approved; or

         (d)      the stockholders of the Company approve a merger or
                  consolidation of the Company with, or a sale of all or
                  substantially all of the Company's assets to, any other
                  company other than:

                 (i)  a merger or consolidation which would result in the
                      Company's voting stock outstanding immediately prior
                      thereto continuing to represent (either by remaining
                      outstanding or by being converted into voting stock of the
                      surviving entity) more than 55% of the combined voting
                      power of the Company's or such surviving entity's
                      outstanding voting stock immediately after such merger or
                      consolidation; or

                (ii)  a merger or consolidation which would result in the
                      directors of the Company who were directors immediately
                      prior thereto continuing to constitute at least a majority
                      of the directors of the surviving entity immediately after
                      such merger or consolidation.

For purposes of paragraph (d) above, the phrase "surviving entity" shall mean
only an entity in which all of the Company's stockholders who are stockholders
immediately before the merger or consolidation (other than stockholders
exercising dissenter rights) become stockholders by the terms of the merger or
consolidation, and the phrase "directors of the Company who were directors
immediately prior thereto" shall not include (A) any director of the Company who
was designated by a person who has entered into an agreement with the Company to
effect a transaction described in paragraph (a) or paragraph (d) above, or (B)
any director who was not a director at the beginning of the twelve-consecutive-
month period preceding the date of such merger or consolidation, unless his
election by the Board of Directors or nomination for election by the Company's
stockholders was approved by a vote of at least 80% of the directors who were
directors before the beginning of such period.

         3.2. Employment After Change in Control. During such period of time as
a Participant is actually employed by an Employer during the
24-consecutive-month period immediately following a Change in Control, the
Participant's duties, responsibilities and

                                      -4-
<PAGE>


                  authorities shall not be materially diminished (as defined in
                  subsection 4.4(a) ) by the employer and the Participant shall
                  be compensated by such Employer as follows:

         (a)      he shall receive a base annual salary at a rate which is not
                  less than his base annual salary rate in effect immediately
                  prior to the Change in Control;

         (b)      he shall be entitled to participate in short-term and long-
                  term cash-based incentive compensation plans which, in the
                  aggregate, provide bonus opportunities which are not
                  materially less favorable than the opportunities provided to
                  the Participant under all such plans in which he was
                  participating prior to the Change in Control;

         (c)      he shall be eligible to participate in stock option, stock
                  appreciation rights, performance awards, restricted stock and
                  other equity-based incentive compensation plans on a basis not
                  materially less favorable than that applicable to him
                  immediately prior to the Change in Control; and

         (d)      he shall be entitled to receive employee benefits (including,
                  but not limited to, tax-qualified and non-qualified pension
                  and savings plan benefits, medical insurance, disability
                  income protection, life insurance coverage and death benefits)
                  and perquisites which are not materially less favorable than
                  the employee benefits and perquisites to which the Participant
                  would be entitled under the Employer's employee benefit plans
                  and perquisites as in effect immediately prior to the Change
                  in Control.


                                   SECTION 4
                                   ---------

                               Severance Benefits
                               ------------------

         4.1. Entitlement to Severance Benefits. Subject to the following
provisions of this Section 4, a Participant shall be entitled to receive
severance benefits determined in accordance with subsection 4.5 if the
Participant's employment with an Employer is terminated:

         (a)      during the 24 consecutive month period immediately following a
                  Change in Control either by his Employer for reasons other
                  than Cause (as defined in subsection 4.2) or Disability (as
                  defined in subsection 4.3) or by the Participant because of
                  Good Reason (as defined in subsection 4.4); or

         (b)      by the Participant for any reason during the thirty-day period
                  beginning on the first anniversary of a Change in Control.

         4.2. Cause. For purposes of this Plan, the term "Cause" means a
Participant willfully engaging in conduct materially injurious to an Employer or
the willful and continual failure by a Participant to substantially perform the
duties assigned to him in accordance with subsection 3.2 (other than any failure
resulting from the Participant's incapacity due to physical

                                      -5-
<PAGE>

injury or illness or mental illness), which failure has not been corrected by
the Participant within 30 days after receipt of a written notice from the Chief
Executive Officer or Board of Directors of the Employer (or, if the Employer
does not have a Board of Directors and is managed by its shareholder or
shareholders, then from such shareholder or shareholders owning a majority of
the voting stock of the Employer) specifying the manner in which the Participant
has failed to perform such duties. No act, or failure to act, by a Participant
shall be deemed "willful" unless done, or omitted to be done, not in good faith
and without reasonable belief that such action or omission was in the best
interest of the Employer.

         4.3. Disability. For purposes of this Plan, the term "Disability" means
an incapacity, due to physical injury or illness or mental illness, causing a
Participant to be unable to perform his duties for an Employer on a full-time
basis for a period of at least six consecutive months.

         4.4. Termination for Good Reason. For purposes of this Plan, a
termination because of "Good Reason" means a resignation by a Participant
following the occurrence of:

         (a)      a material diminishment in the duties, responsibilities or
                  authorities of the Participant;

         (b)      a failure by the Participant's Employer to compensate the
                  Participant in accordance with the provisions of subsection
                  3.2;

         (c)      the relocation of the Participant's office to a location more
                  than fifty miles from the location of his office immediately
                  prior to the Change in Control;

         (d)      a reasonable determination by the Participant that, as a
                  result of a Change in Control and a change in circumstances
                  thereafter significantly affecting his position, he is unable
                  to exercise the authorities, powers, functions or duties
                  attached to his position and contemplated by subsection 3.2;
                  or

         (e)      the failure of the Company to obtain a satisfactory agreement
                  from any successor to assume and agree to perform this Plan as
                  contemplated by subsection 6.3.

         For purposes of paragraph (a) of this subsection, and without affecting
the terms of any of the other paragraphs hereof, "a material diminishment in the
duties, responsibilities or authorities" of a Participant means a change in
employment which results in a reduction of 15% or more in the Participant's
market rate of pay under the Company's job evaluation model for the compensation
program applicable to the Participant.

         4.5. Severance Benefits. If a Participant becomes entitled to severance
benefits in accordance with the provisions of subsection 4.1 he shall continue
to receive medical insurance, disability income protection, life insurance
protection and death benefits, and perquisites (all as described in paragraph
3.2(d)) for a period of not less than the 24 consecutive months immediately
following the date of his termination of employment. If at the time of such a
Participant's termination of employment, he is a Participant in the Ameritech
Key Management
                                      -6-
<PAGE>

Life Insurance Plan ("KMLIP") and/or the Ameritech Estate Preservation Plan
("EPP") and is not then "retirement eligible" as defined in the KMLIP and the
EPP, the Company shall contribute on the Participant's behalf, for a period of
not less than the 24 consecutive months immediately following the date of his
termination of employment, such amount as the Company in its sole discretion
shall determine to be needed to maintain the Participant's death benefit under
the KMLIP and/or the EPP for that period. Any Participant described in the first
sentence of this subsection 4.5 shall be further entitled to a lump sum payment
in cash no later than ten business days after the date of termination equal to
the sum of:

         (a)      an amount equal to two times the Participant's base annual
                  rate of salary as of the date of the Change in Control;

         (b)      an amount equal to two times the Participant's target short-
                  term incentive amount and other bonuses payable for the
                  calendar year immediately preceding the date of the Change in
                  Control;

         (c)      the actuarial equivalent of the additional pension benefits
                  which the Participant would have accrued under the terms of
                  the Ameritech Management Pension Plan, the Ameritech Corporate
                  Resource Supplemental Pension Plan and each other tax-
                  qualified or non-qualified defined benefit pension plan
                  maintained by the Employer (determined without regard to any
                  termination or any amendment adversely affecting the
                  Participant which is adopted on or after a Change in Control
                  or in contemplation of a Change in Control) if, on the date of
                  termination, the Participant (i) was credited for benefit
                  accrual purposes with two additional years of service and two
                  additional years of compensation at his annual base salary
                  rate and target short-term incentive award in effect on the
                  date of the Change in Control and (ii) was two years older
                  than his actual age on such date; provided, however, that the
                  additional service, compensation and age credits under this
                  paragraph (c) shall, to the extent permitted by law, be
                  proportionately reduced for any Participant who, on the date
                  of termination, is at least age 63 and eliminated for any
                  Participant who, on the date of termination, is at least age
                  65. For purposes of this subparagraph (c), actuarial
                  equivalence shall be determined in accordance with the terms
                  of the Ameritech Corporate Resource Supplemental Pension Plan
                  for purposes of lump sum payments under that plan, but without
                  regard to any amendment of that plan, adopted on or after a
                  Change in Control or in contemplation of a Change in Control
                  which would reduce the amount of such lump sum payment.

         4.6. Reduction for Other Severance Payments. The amount of severance
benefits to which a Participant is otherwise entitled upon a termination of
employment under the foregoing provisions of this Section 4 shall be reduced by
the amount, if any, of any other severance payments actually paid by reason of
such termination to the Participant by an Employer under a plan which provides
severance benefits only.


                                      -7-
<PAGE>

         4.7. Tax Limitations. If any payments under this Plan, after taking
into account all other payments to which a Participant is entitled from any
Employer or Affiliate thereof, are more likely than not to result in a loss of a
deduction to the Employer by reason of section 280G of the Code or any successor
provision to that section, such payments shall be reduced by the least amount
required to avoid such loss of deduction. If the Participant and the Employer
shall disagree as to whether a payment under this Section 4 is more likely than
not to result in the loss of a deduction, the matter shall be resolved by an
opinion of tax counsel chosen by the Company's independent auditors. The
Employer shall pay the fees and expenses of such counsel, and shall make
available such information as may be reasonably requested by such counsel to
prepare the opinion. If, by reason of limitations of this subsection 4.7, the
maximum amount payable to the Participant under this Section 4 cannot be
determined prior to the due date for such payment, the Employer shall pay on the
due date the minimum amount which it in good faith determines to be payable and
shall pay the remaining amount, with interest calculated at the rate prescribed
by section 1274 (b) (2) (B) of the Code, as soon as such remaining amount is
determined in accordance with this subsection 4.7. Tax counsel selected in
accordance with this subsection shall have no liability to the Employers, or
Participants or any other person for any action taken in good faith.

         4.8. Mitigation and Set-Off. No Participant shall be required to
mitigate the amount of any payment provided for in this Plan by seeking other
employment or otherwise. The Employers shall not be entitled to set off against
the amounts payable to any Participant under this Plan any amounts owed to the
Employers by the Participant, any amounts earned by the Participant in other
employment after termination of his employment with the Employer, or any amount
which might have been earned by the Participant in other employment had he
sought such other employment.

         4.9. Non-Alienation. Participants shall not have any right to pledge,
hypothecate, anticipate or in any way create a lien upon any amounts provided
under this Plan; and no benefits payable hereunder shall be assignable in
anticipation of payment either by voluntary or involuntary acts or by operation
of law. Nothing in this subsection shall limit a Participant's rights or powers
to dispose of his property by will or the laws of descent and distribution or
limit any rights or powers which his executor or administrator would otherwise
have.

         4.10. Withholding. All payments to a Participant under this Plan will
be subject to applicable withholding of all applicable federal, state and local
taxes.


                                   SECTION 5
                                   ---------

                                  Enforcement
                                  -----------

         5.1. Governing Laws. The Plan shall be construed and administered in
accordance with the internal laws of the State of Illinois to the extent that
such laws are not preempted by the laws of the United States.


                                      -8-
<PAGE>

         5.2. Arbitration of All Disputes. Any controversy or claim arising out
of or relating to this Plan shall be settled by arbitration in the city in which
the principal executive offices of his Employer are located (disregarding any
transfer of such offices after a Change in Control), by three arbitrators, one
of whom shall be appointed by the Company, one by the Participant and the third
of whom shall be appointed by the first two arbitrators. If the first two
arbitrators cannot agree on the appointment of a third arbitrator, then the
third arbitrator shall be appointed by the Chief Judge of the United States
Court of Appeals for such location. The arbitration shall be conducted in
accordance with the rules of the American Arbitration Association, except with
respect to the selection of arbitrators which shall be as provided in this
subsection 5.2. Judgment upon the award rendered by the arbitrators may be
entered in any court having jurisdiction thereof.

         5.3. Reimbursement of Costs and Expenses. In the event that it shall be
necessary or desirable for a Participant to retain legal counsel or incur other
costs and expenses in connection with enforcement of his rights under the Plan,
his Employer shall pay (or the Participant shall be entitled to recover from the
Employer, as the case may be) his reasonable attorneys' fees and costs and
expenses in connection with enforcement of his rights (including the enforcement
of any arbitration award in court). Payments shall be made to the Participant at
the time such fees, costs and expenses are incurred. If, however, the
arbitrators shall determine that, under the circumstances, payment by the
Employer of all or a part of any such fees, costs and expenses would be unjust,
the Participant shall repay such amounts to the Employer in accordance with the
order of the arbitrators.


                                   SECTION 6
                                   ---------

                            Amendment or Termination
                            ------------------------

         6.1. Amendments and Terminations. Subject to the provisions of
subsection 6.2:

         (a)      the Company's Senior Vice President - Human Resources, or such
                  other officer of the Company as may from time to time be
                  primarily responsible for human resource matters, may, with
                  the concurrence of the Company's Executive Vice President and
                  General Counsel, make minor or administrative amendments to
                  the Plan;

         (b)      the Board of Directors of any Employer (or, if such Employer
                  does not have a Board of Directors and is managed by its
                  shareholder or shareholders, then such shareholder or
                  shareholders) may terminate or, with the consent of the
                  Company's Board of Directors, amend the Plan as applied to it
                  at any time; and

         (c)      the Company's Board of Directors may terminate the Plan as
                  applied to it or as applied to each Employer at any time.


                                      -9-
<PAGE>

         6.2. Participant Rights. No amendment or termination of the Plan which
would directly or indirectly adversely affect any Participant shall be effective
if adopted after a Change in Control or during the one-year period immediately
preceding a Change in Control.

         6.3. Successors. The obligations of each Employer under the Plan shall
be binding upon any assignee or successor in interest thereto. No Employer shall
merge or consolidate with any other corporation, or liquidate or dissolve,
without making suitable arrangements for the payment of any benefits which are
or may become payable under the Plan.

                                      -10-