Document:

<PAGE>

                                                                     Page 1 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

Exhibit 10.48.5

Omitted information, for which [ * ] has been substituted herein, has been
omitted pursuant to a request for confidential treatment and such information
has been filed separately with the office of the Secretary of the Securities and
Exchange Commission.

           AT&T Managed Internet Service Terms and Pricing Attachment

CUSTOMER Name (Full Legal Name): Easylink Services Corporation

Date of execution of Master Agreement:     ________________________(by CUSTOMER)

                                          s/MA_________________________(by AT&T)

                                          Enter Agent
                                          Code:<<code>>
--------------------------------------------------------------------------------
This Managed Internet Service Terms and Pricing Attachment ("Attachment") is an
attachment to the Master Agreement identified above (the "Agreement") and is an
integral part of the Agreement. Except as otherwise expressly provided, the
service description, pricing information and other terms and conditions related
to the AT&T WorldNet Managed Internet Services are set forth at URL: www.att
com/abs/serviceguide, as amended from time to time, (hereinafter "the AT&T MIS
Service Guide") and are hereby incorporated into this Attachment by reference,

1.    Service Provided. AT&T will provide CUSTOMER with the AT&T WorldNet
      Managed Internet Service ("Service" or "MIS") under this Attachment and
      any Sales Orders (as defined in Section 2 below), and pursuant to the
      terms of the Agreement and the AT&T MIS Service Guide. Service will be
      offered only within the United States including the Commonwealth of Puerto
      Rico and the United States Virgin Islands. A current description of the
      Service is contained in the AT&T MIS Service Guide under the heading "AT&T
      Managed Internet Service Description" ("Service Description'). AT&T may
      change the Service as provided to CUSTOMER from time to time by
      publication of the changes in the AT&T MIS Service Guide. Notwithstanding
      my contrary provision in the Agreement, changes to the AT&T MIS Service
      Guide on the website will be binding on both AT&T and the CUSTOMER as of
      he dale the change is posted.

2.    Ordering Procedures. The particulars of the Service applicable to CUSTOMER
      will be set forth in the Sales Order Forms as completed by AT&T and
      CUSTOMER. It is the responsibility of the CUSTOMER to ensure that the
      correct information is provided to AT&T for purposes of completing the
      Sales Order Form. CUSTOMER must submit its initial Sales Order Form within
      90 days of the Effective Date.

3.    Term and Termination. The Term of this Attachment begins on the date both
      parties signed the Attachment ("Effective Date') and ends on the last day
      of the last billing month for any Service ordered. At the end of the Term,
      this Attachment will remain in effect on a month-to-month basis until
      terminated by either party upon thirty days' notice to the other.

                           AT&T/CUSTOMER PROPRIETARY

 <PAGE>

                                                                     Page 2 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

      A.    Notwithstanding anything to the contrary contained in this
            Attachment, within thirty (30) days following the Actual Network
            Activation Date ("ANAD"); with respect to the first CUSTOMER site,
            CUSTOMER will have a one time right to terminate this Attachment
            without cause by giving AT&T at least seven days' written notice of
            termination and providing payment of all charges incurred by AT&T on
            behalf of CUSTOMER, including but not limited to access facilities
            cancellation charges. CUSTOMER will not owe the Termination Charges
            specified in Section 7.

      B.    During the Term CUSTOMER may terminate this Attachment upon thirty
            (30) days' written notice and payment of any applicable Termination
            Charges specified in Section 7. After the expiration of the Term,
            either party may terminate this Attachment (without cause) by giving
            the other party thirty (30) days' written notice to that effect.

      C.    If AT&T delays the ANAD for any Service ordered for more than 30
            days after the Scheduled Network Activation Date ("SNAD"), and
            CUSTOMER is not the cause of the delay, then CUSTOMER will have the
            right to terminate the relevant Service Order Form without owing
            AT&T the Termination Charges specified in Section 7 by giving AT&T
            notice within seven days after AT&T has informed CUSTOMER of the
            delay.

      D.    AT&T may terminate this Attachment or any Sales Order immediately
            upon written notice to CUSTOMER if CUSTOMER violates any term of the
            Agreement or this Attachment or fails to police violations of its
            Intermediate Resellers and End Users. Upon such termination,
            CUSTOMER will be liable for all charges incurred as; of the date of
            termination and, if applicable, any Termination Charges specified in
            Section 7.

4.    Rates and Charges. The rates for the Service are set forth in Appendix A
      of this Attachment and are applicable for[*]; from the Effective Date
      ("Ordering Period"). Thereafter, the rates published in the [*], as
      amended from time to time, are applicable to any Services ordered under
      this Attachment, unless otherwise agreed in writing by both Parties. The
      billing cycle will begin on the later of. (1) the ANAD; or (2) one day
      after the Scheduled Network Activation Date ("SNAD") as specified on the
      initial Sales Order Form.

5.    Responsibilities of the Parties.

      A.    CUSTOMER may purchase local access facilities from AT&T for use in
            conjunction with the Service. If AT&T is unable to provide such
            facilities then by signing the accompanying AT&T Agency Agreement
            (in the form of attached Schedule 1), CUSTOMER authorizes AT&T to
            act as CUSTOMER's agent for ordering from and coordinating with a
            third party local access to be used in conjunction with the Service.

      B.    AT&T will not directly support, nor interface with, my Intermediate
            Reseller or End User. CUSTOMER is responsible for training its
            Intermediate Resellers and End Users and for billing and collecting
            any amounts CUSTOMER elects to charge its Intermediate Resellers and
            End Users in connection with the Service.

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

                                                                     Page 3 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

      C.    CUSTOMER may, from time to time, request that AT&T submit to
            InterNIC or another Domain Name Registry, on CUSTOMER's behalf, a
            domain name registration application ("Application") for a domain
            name selected by CUSTOMER ("Domain Name). If CUSTOMER requests and
            if AT&T elects, in its sole discretion, to perform such service, the
            Application will name AT&T as the Internet Service Provider that
            will host such domain names. AT&T is not a Domain Name Registry.
            AT&T's charges for Domain Name Registration Services ("DNRS
            Services") do not include the Domain Name Registry's fees. CUSTOMER
            will be responsible for, and will promptly pay, all DNRS Services
            charges and Domain Name Registry's fees. CUSTOMER represents and
            warrants that: (i) all statements on the Applications are true and
            correct; (ii) none of the requested Domain Names or CUSTOMER's use
            of any Domain Name will interfere with the rights of any third party
            or infringe any trademark, service mark, or other personal, moral,
            or property right; and (iii) CUSTOMER has a legitimate business
            purpose for registering each Domain Name, and such purpose relates
            to CUSTOMER's purchase of the -Service. AT&T may elect to
            immediately terminate or suspend its hosting of or provision of any
            DNRS Services with respect to any or all of CUSTOMER's Domain Names
            in the event that: (i) an Application is rejected; (ii) the Domain
            Name registration is revoked or placed on "hold" or assigned to a
            third party; or (iii) AT&T receives or becomes aware of my adverse
            information, including complaints conflicting claims, disputes, or
            court orders regarding a particular Domain Name. AT&T offers no
            warranty with respect to the DNRS Services.

      D.    CUSTOMER is responsible for the Content of the messages it
            transmits, as well as any Content hosted by CUSTOMER or any
            Intermediate Reseller or End User on behalf of third parties.
            Customer acknowledges that it has read and agrees to be bound by
            AT&T's Acceptable Use Policy ("AUP"). The AUP, as it may be revised
            from time to time, is published at http://www.ipservices.att.com/
            policy.html or at such other address as AT&T may specify by notice
            to the CUSTOMER. Any violation of the AUP constitutes a material
            breach of this Attachment. For purposes of this Attachment,
            "Content" means information made available, displayed, or
            transmitted in connection with the Service (including, without
            limitation, information made available by means of an HTML "hot
            link", a third party posting, or similar means) including all
            trademarks, service marks, and domain names contained therein as
            well as the contents of any bulletin boards or chat forums, and, all
            updates upgrades, modifications, and other versions of any of the
            foregoing.

      E.    CUSTOMER is solely responsible for providing my security procedures
            and controls necessary to limit access to the Service to CUSTOMER's
            authorized Intermediate Resellers and End Users and any facilities
            and procedures external to the Service for reconstruction of lost or
            altered files, data or programs.

      F.    CUSTOMER is responsible for establishing (within fifteen (15)
            calendar days from the Effective Date) designated Customer Points of
            Contact "CPOCs") to interface with the AT&T-Customer Care Solution
            Support center.

      G.    CUSTOMER understands that the Service (including Internet use) may
            require registrations and related administrative reports that are
            public in nature.

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

                                                                     Page 4 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

      H.    Except for IP addresses expressly registered in CUSTOMER's name, an
            IP address will remain, at all times, the property of AT&T and will
            be nontransferable. CUSTOMER will have no right to use such IP
            addresses upon termination or expiration of this Attachment. IP
            addresses are allocated by AT&T to CUSTOMER per the Internet
            Registry (ARIN) guidelines following RFC 2050.

      I.    If CUSTOMER or any of its Intermediate Resellers or End Users has in
            place or adds, after the AT&T installation of the AT&T Managed
            Firewall Service, any modem, modern pools, or remote communications
            software packages resident on Personal Computers, or any other
            circuits or equipment which could create a potential point of entry,
            the CUSTOMER will be solely responsible for security of its network.

6.    Supplemental Terms and Conditions.

      A.    Software License.

            1.    AT&T grants CUSTOMER a personal, non-transferable, and
                  non-exclusive license (without the right to sublicense) to
                  use, m object code form, all software and associated written
                  and electronic documentation and data furnished pursuant to
                  this Attachment (collectively, the "Software), solely in
                  connection with the Service and solely in accordance with
                  applicable written and electronic documentation. CUSTOMER will
                  not reverse assemble, reverse compile, or otherwise attempt to
                  derive a source code version of the Software. The Software
                  will at all times remain the sole and exclusive property of
                  AT&T or-its suppliers. "Third-Party Software' means Software
                  that bears a copyright notice of a third party (other than
                  AT&T). "AT&T Software" means all Software that bears the AT&T
                  (or any of its affiliates or subsidiaries) copyright notice.

            2.    CUSTOMER will not copy or download Software, except to the
                  extent expressly provided in the applicable documentation for
                  the Service or in a writing signed by AT&T. Any copy of the
                  Software must contain the same copyright notices and
                  proprietary markings as the original Software. CUSTOMER agrees
                  to comply with any additional restrictions that are provided
                  with any Third-Party Software.

            3.    Software is Confidential Information. Notwithstanding the two
                  year period in Section 20 of the Agreement, each item of
                  Software will continue to be Confidential Information until
                  one of the exceptions in the last sentence of Section 19 of
                  the Agreement applies to that item.

            4.    CUSTOMER will ensure that its employees, Intermediate
                  Resellers, and End Users comply with the terms and conditions
                  of this Section.

            5.    The term of the license granted hereunder will be coterminous
                  with the term of this Attachment.

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

                                                                     Page 5 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

            6.    AT&T warrants that all AT&T Software will perform
                  substantially in accordance with its applicable published
                  specifications during a warranty period of 90 days beginning
                  on the date of delivery of the AT&T Software to CUSTOMER. If
                  CUSTOMER returns to AT&T, within the 90-day warranty period,
                  any AT&T Software that does not comply with this warranty,
                  then AT&T, at its option, will either repair or replace the,
                  non-compliant portion of the AT&T Software or refund the
                  amount paid by CUSTOMER for such failed or defective AT&T
                  Software. This warranty miff apply only if the AT&T Software
                  is used in accordance with the terms of this Attachment and
                  the Agreement and is not altered, modified, or tampered with
                  by CUSTOMER or its Intermediate Resellers or End Users. This
                  Section states AT&T's entire liability, and CUSTOMER's
                  exclusive remedies against AT&T, for defects or failures in
                  the Software.

      B.    Indemnification.

            CUSTOMER's obligation to indemnify AT&T under Section 16 of the
            Agreement extends to claims arising on account of or in connection
            with the Content of any message sent by CUSTOMER, any Intermediate
            Reseller, and/or any End User.

7.    Termination Charges.

      The "Termination Charge" consists of. (1) 1 00% of the scheduled payments
      (if any) for each of the months remaining through month 12 of the Service
      Period as defined in Appendix A; (2) 50% of the scheduled payments, if
      any, for each of the months remaining in the Service Period through month
      24, (3) 25% of the scheduled payments, if my, for each of the months in
      the Service Period remaining through mouth 36; (4) all discounts, if any,
      received by CUSTOMER; and (5) any access facilities cancellation charges
      or other charges incurred by AT&T as a result of such termination.

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

                                                                     Page 6 of 5

AT&T WorldNet Managed Internet Service Terms and Pricing

                                  Schedule 1
                          AT&T Managed Internet Service
                                Agency Agreement

This Agency Agreement is between AT&T Corp. ("AT&T") and CUSTOMER.

1.    EFFECTIVE DATE

      This Agreement is effective upon the Effective Due of the AT&T Managed
      Internal Service Terms and Pricing Attachment ("Attachment") and will
      continue in effect as long as the Attachment is in effect.

2.    SERVICES

      CUSTOMER authorizes AT&T to license for and coordinate installations, and
      disconnection of tariffed and other services as required by CUSTOMER for
      its AT&T Service configuration.

3.    PAYMENT OF CHARGES

      All recurring and non-recurring changes billed by vendors for service
      ordered on CUSTOMER's behalf will be paid by CUSTOMER directly to such
      vendors and are not the responsibility of AT&T.

4.    LIMITATION OF LIABILITY

      In the event of breach of this Agency Agreement by AT&T CUSTOMER's sole
      and exclusive remedies will be (a) Customer's light to terminate this
      Agency Agreement; (b) Customer's right to direct proven damages for damage
      to real or tangible personal property or damages for bodily injury or
      death, proximately caused by AT&T's gross negligence; and (c) Customer's
      right to receive a credit for charges billed to Customer by vendors solely
      as a result of AT&T's gross negligence Except as provided in subparagraphs
      (b) and (c) above, AT&T will have no liability for either direct indirect,
      incidental or consequential damages (including lost profits resulting Scot
      or wising in connection with this Agency Agreement The limitation of
      liability set forth herein will apply regardless of the Small of action,
      whether in contract, unmanly, strict liability, loss (including, without
      limitation, negligent of my End) or otherwise; and regardless of whether a
      party has been advised of the possibility of such, damages and whether
      such damages were foreseeable. AT&T will not be responsible for
      non-performance by my vendor from which AT&T orders Service or equipment
      on Customer's behalf

5.    COVERAGE

      This Agency Agreement is in effect for all of Customer's locations unless
      otherwise specified by Customer in writing.

--------------------------------------------------------------------------------
THIS IS THE ENTIRE AGENCY AGREEMENT BETWEEN CUSTOMER AND AT&T WITH RESPECT TO
THE ATTACHMENT ANY AMENDMENTS MODIFICATIONS OR CHANGES MUST BE IN WRITING AND
SIGNED BY CUSTOMER AND AT&T.

Customer Name: EasyLink Services

By: s/George Frylinck
    ------------------------------
     (Authorized Signature)

George Frylinck
----------------------------------
(Typed or Printed Name)

Vice President
----------------------------------
(Title)

23 Aug 01
---------
(Date)

AT&T CORP.

By: s/Tom Umholtz for Maryann Allen
    -------------------------------
Authorized AT&T Signature
(Contract Management Agent)

Thomas Umholtz for Maryann Allen
-----------------------------------
(Typed or Printed Name)

District Sales Manager
-----------------------------------
 (Title)

9/20/01
-----------------------------------
(Date)

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

AT&T WorldNet Managed Internet Service Terms and Pricing

                     AT&T Managed Internet Service Addendum
                           Pricing Schedule-Appendix A

1. Service Activation Fees.

A.   Activation Fee. All MIS solutions require service installation regardless
     of whether or not CUSTOMER leases the Customer Premise Equipment (CPE) from
     AT&T or provides the CPE on their own. These service activation fees
     include implementation, registration, equipment configuration (MIS with
     Managed Router only), and access line coordination. These service
     activation fees do not include inside wiring fees.
<TABLE>
<CAPTION>

----------------------------------------------------------------------------------------------
                                    MIS with Managed Router                      MIS
----------------------------------------------------------------------------------------------
        Access Speed             Tele-Install           On-site     Tele-Install    On-site
----------------------------------------------------------------------------------------------
<S>       <C>                        <C>                  <C>           <C>           <C>
          56 Kbps                     [*]                 [*]            [*]          [*]
----------------------------------------------------------------------------------------------
    128 Kbps - 1.5 Mbps               [*]                 [*]            [*]          [*]
----------------------------------------------------------------------------------------------
 NxT1 (3.0 Mbps - 6.0 Mbps)           [*]                 [*]            [*]          [*]
----------------------------------------------------------------------------------------------
       Tiered/Full T3                 [*]                                [*]          [*]
----------------------------------------------------------------------------------------------
            OC3                       [*]                                [*]          [*]
------------------------------------------------------------------- -------------------------
            OC12                      [*]                                [*]          [*]
----------------------------------------------------------------------------------------------
</TABLE>

*Pricing provided on a case-by-case basis.

**The Non Recurring Charges applicable to MIS Ports vary by type of Service as
specified in the preceding chart. A separate Service Period will apply with
respect to each MIS Port ordered during the Ordering Period, as specified by
CUSTOMER at the time the MIS Port is ordered.

B. Discount. [*]:
                   ------------------------------------------------------------
                   MIS Port Service Period             Discount
                   ------------------------------------------------------------
                   12 Months                           [*]
                   ------------------------------------------------------------
                   24 Months                           [*]
                   ------------------------------------------------------------
                   36 Months                           [*]
                   ------------------------------------------------------------

2.       Move Charges

A.       Activation Fee.

--------------------------------------------------------------------------------
Re-installation of AT&T MIS at a New Location (Customer Driven)  [*]per location
--------------------------------------------------------------------------------
Re-installation services performed outside of standard
operating hours (8:00 a.m. to 5:00 p.m. Monday through Friday)  [*]per location.
--------------------------------------------------------------------------------
Additional one time charges my apply far services and
support Minimum [*] Rendered in excess of what is
provided. AT&T and the Customer will Mutually agree upon
these charges (minimum[*]) when services or Support is
rendered.
--------------------------------------------------------------------------------

B.   Discount. [*].

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

AT&T WorldNet Managed Internet Service Terms and Pricing

3.    Monthly Recurring Charges. The Monthly Recurring Charges applicable to
      AT&T WorldNet Managed Internet Service (MIS) Ports vary by type of Service
      as well as Service Term, as specified in the following tables A separate
      Service Period will apply with respect to each MIS Port; ordered during
      the Ordering Period, as specified by CUSTOMER at the time the MIS Port is
      ordered. The Service Period will begin on the later of (1) the Actual
      Network Activation Date ("ANAD"); or (2) one day after the Scheduled
      Network Activation Date ("SNAD"). A discount will apply to the Monthly
      Recurring Charges for MIS Ports ordered under this Attachment. based upon
      the Service Period as defined in the chart below. The only discounts,
      credits or promotions that apply to MIS we those specifically provided for
      in this Attachment. AT&T reserves the right to increase from time to time
      the rates for Services under this Attachment, regardless of any provisions
      that would otherwise stabilize rates or limit rate increases, relating to
      charges or payment obligations imposed on AT&T stemming from an order,
      rule or regulation of-die Federal Communications Commission, state
      regulatory authorities, or a court of competent jurisdiction, concerning
      universal service fund ("USF") charges, or as otherwise needed to recover
      amounts it is required by governmental or quasi-governmental authorities
      to collect from or pay to others in support of statutory or regulatory
      program. AT&T will make rate adjustments under this provision as
      necessary.

      A.    Tiered Service

            1.    T1 - (Access Method. Private Line, Local Channel not Included)

                          ----------------------------------------------------
                            Monthly Fee for     Basic       MIS w/Managed
                                MIS Port                    Router (Plus)
                          ----------------------------------------------------
                                 56 Kbps                [*]                  [*]
                                128 Kbps               [*]                  [*]
                                256 Kbps               [*]                  [*]
                                384 Kbps               [*]                  [*]
                                512 Kbps               [*]                  [*]
                                768 Kbps               [*]                  [*]
                               1.024 Mbps              [*]                  [*]
                                1.5 Mbps               [*]                  [*]

            2.    NxT1 - (Access Method: Private Line, Local Channel not
                  included)

                          -----------------------------------------------------
                             Monthly Fee for     Basic       MIS w/Managed
                                MIS Port                     Router (Plus)
                          -----------------------------------------------------
                                 3 Mbps           [*]             [*]
                                 4.5Mbps          [*]             [*]
                                 6 Mbps           [*]             [*]

B.    HiCap Flex Option

      3.    HiCap Flex T3 Option (Access Method: Private Line, Local Channel not
            included)

             -------------------------------------------------------------------
                 Tiered          MIS Basic         MIS Plus       Incremental
                Bandwidth         Monthly          Monthly         Usage Fee
               Commitment        List Rate        List Rate         per Meg
             -------------------------------------------------------------------
                   2M               [*]              [*]              [*]
                   3M               [*]              [*]              [*]
                   4M               [*]              [*]              [*]
                   5M               [*]              [*]              [*]
                   6M               [*]              [*]              [*]
                   7M               [*]              [*]              [*]
                   8M               [*]              [*]              [*]
                   9M               [*]              [*]              [*]
                   10M              [*]              [*]              [*]
                   15M              [*]              [*]              [*]
                   20M              [*]              [*]              [*]
                   25M              [*]              [*]              [*]
                   3OM              [*]              [*]              [*]
                   35M              [*]              [*]              [*]
                   40M              [*]              [*]              [*]
                   45M              [*]              [*]              [*]

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

AT&T WorldNet Managed Internet Service Terms and Pricing

      2.    HiCap Flex OC-3 Option (Access Method: Private Line, Local Channel
            not Included)

               -----------------------------------------------------------------
                  Tiered         MIS Basic          MIS Plus        Incremental
                Bandwidth         Monthly            Monthly         Usage Fee
                Commitment       List Rate          List Rate         per Meg
               -----------------------------------------------------------------
                   35M              [*]                [*]              [*]
                   40M              [*]                [*]              [*]
                   45M              [*]                [*]              [*]
                   60M              [*]                [*]              [*]
                   70M              [*]                [*]              [*]
                   80M              [*]                [*]              [*]
                   90M              [*]                [*]              [*]
                   100M             [*]                [*]              [*]
                   120M             [*]                [*]              [*]
                   144M             [*]                [*]              [*]
                   155M             [*]                [*]              [*]

      3.    HiCap Flex OC-12 Option (Access Method; Private Line Local Channel
            not Included)
              ------------------------------------------------------------------
                 Tiered           MIS Basic          MIS Plus        Incremental
                Bandwidth           Monthly            Monthly         Usage Fee
                Commitment         List Rate          List Rate         per Meg
              ------------------------------------------------------------------
                 70 Mbps              [*]                [*]              [*]
                 80 Mbps              [*]                [*]              [*]
                 90 Mbps              [*]                [*]              [*]
                 100 Mbps             [*]                [*]              [*]
                 120 Mbps             [*]                [*]              [*]
                 144 Mbps             [*]                [*]              [*]
                 155 Mbps             [*]                [*]              [*]
                 200 Mbps             [*]                [*]              [*]
                 250 Mbps             [*]                [*]              [*]
                 300 Mbps             [*]                [*]              [*]
                 350 Mbps             [*]                [*]              [*]
                 400 Mbps             [*]                [*]              [*]
                 450 Mbps             [*]                [*]              [*]
                 500 Mbps             [*]                [*]              [*]
                 550 Mbps             [*]                [*]              [*]
                 600 Mbps             [*]                [*]              [*]
                 622 Mbps             [*]                [*]              [*]

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

AT&T WorldNet Managed Internet Service Terms and Pricing

C.    Discount.

      1.    Standard Discount - the following discounts apply for [*]provided
            under this Attachment:

              ------------------------------------------------------------------
                    MIS Service                         Discounts
                                            12 Months    24 Months    36 Months
              ------------------------------------------------------------------
                    [*]
                    [*]                        [*]          [*]          [*]
                    [*]                        [*]          [*]          [*]

                    [*]

                    [*]                        [*]          [*]          [*]
                    [*]                        [*]          [*]          [*]

                    [*]                        [*]          [*]          [*]
                    [*]                        [*]          [*]          [*]

              ------------------------------------------------------------------
                                                        Discounts
                    [*]                   12 Months     24 Months      36 Months
              ------------------------------------------------------------------
                    [*]                       [*]           [*]           [*]
              ------------------------------------------------------------------
                                                        Discounts
                    [*]                    12 Months     24 Months     36 Months
              ------------------------------------------------------------------
                    [*]                       [*]           [*]           [*]

                           AT&T/CUSTOMER PROPRIETARY

<PAGE>

AT&T WorldNet Managed Internet Service Terms and Pricing

NOTES:

1.    Unless waived as per Section 1.B above for Tele-Install, Service
      Activation Sees are a one-time charge due within 30 days of service
      commencement.

2.    All On-Site OC-3 Service and T3 Plus Service Activation fees will be
      provided to the customer on a case by case basis. Additional charges may
      apply for services or features not specified herein, including location
      changes and professional services.

3.    The features of the MIS Tiered and Burstable Service are contained in the
      Service Guide.

4.    When the Customer purchases MS Burnable Service, the Port CPE Lease and
      Management, Domain Name System Administration, Network News feeds, Packet
      Filtering, and Usage Reports are included.

5.    With AT&T Burstable Service, the customer receives full access and can
      burst to the full 1.544, 45 or 155 Mbps at my time. The monthly rate is
      based an sustained usage. AT&T will measure usage samples at five minute
      intervals in each direction, leaving and entering the site. The level of
      utilization below which ninety-five percent (95%), rounded downward, of
      the samples fall is the sustained usage.

6.    AT&T Burstable Service includes for life of contract stated bandwidth
      Domain Name Service, IP address space, Monitoring/ Maintenance and
      AT&T-owned Customer Premise Equipment.

7.    If Customer subscribes to the AT&T MIS Burstable Service all rights, title
      and interest in all the fiber optic or other facilities and associated
      equipment provided by AT&T shall at all times remain exclusively with
      AT&T. Customer acknowledges that all routing equipment supplied by AT&T in
      support of AT&T MIS Burstable Service is for management of Customer/AT&T
      demarcation point and shall not be used for anything other than AT&T MIS
      Burstable Service. Customer shall not create my liens or encumbrances with
      respect to such facilities or equipment Upon termination of AT&T MIS
      Burstable Service, AT&T shall remove, or request Customer to return at
      AT&T's expense, AT&T's equipment and shall haw the right, but not the
      obligation, to remove all other facilities from my applicable premises; in
      addition, AT&T shall have no responsibility for the maintenance and repair
      of, or liability of any kind with respect to, facilities and equipment
      which it does not furnish.

8.    Customer is responsible for arranging access to my of the rights of way,
      conduit and equipment space necessary to provide my AT&T MIS Service on
      its premises for installation, maintenance, repair and removal of
      facilities required for all AT&T MIS Service AT&T shall also have the
      right to obtain access to its cable installed in Customer-provided conduit
      at any splice or junction box.

9.    If required, for On Site MIS, Customer shall arrange for and timely
      provide the necessary access to my rights of way, equipment space,
      conduit, electrical power and environmental conditions which AT&T deems
      necessary to provide, maintain or remove any equipment required for my of
      the Services on all applicable premises without charge or cost to AT&T.
      AT&T will also have the right to obtain access to my of its wiring
      installed in my conduit provided by Customer at my splice or junction box.
      Customer also agrees to provide AT&T with a safe place to work and to prow
      all AT&T facilities against fire theft, vandalism or other casualty.
      Customer shall be responsible for compliance with all governmental and
      third party requirements relating to such equipment space and conduit.

                           AT&T/CUSTOMER PROPRIETARY<PAGE>

                                                                     Page 1 of 5

AT&T Private Line and Satellite
Service Terms and Pricing

Exhibit 10.48.6

Omitted information, for which [ * ] has been substituted herein, has been
omitted pursuant to a request for confidential treatment and such information
has been filed separately with the office of the Secretary of the Securities and
Exchange Commission.

         AT&T Private Line and Satellite Service and Pricing Attachment

CUSTOMER Name (Full Legal Name): EasyLink Services Corporation

Date of execution of Agreement:             GF 21 Nov 02 (by CUSTOMER)

                                            TU for MA 11/22/02 (by AT&T)
================================================================================

1.   Services Provided. AT&T will provide the following Services to CUSTOMER
     under this Attachment and pursuant to the terms of the Master Agreement and
     the applicable provisions of the AT&T Service Guide.

      A.    AT&T Private Line Services.

      B.    AT&T Local Channel Services.

      C.    AT&T International Satellite Services.

      D.    AT&T Frame Relay Services

2.    Term. The Term of this Attachment is 36 months. For each service provided
      under this Attachment, the Term begins on the first day of the first full
      billing month for the first service provided under this Attachment, which
      day is referred to as the Customer's Initial Service Date (CISD).
      Different Services may have different billing cycles, and so the billing
      months may be staggered. For each service, however, the Term will begin
      within one month after the Term begins for the first service provided
      under this Agreement. CUSTOMER may elect to extend the Term for an
      additional 12 months by providing notice of such election to AT&T at least
      60 days prior to the end of the initial Tenn. The rates, terms and
      conditions of this Attachment are effective as of the date on which this
      Attachment is made part of the Agreement (i.e., on the date the Agreement
      is initially executed by both parties or, if this Attachment is not part
      of the Agreement as initially executed, on the date the Agreement is
      thereafter amended to include this Attachment, which date is referred to
      as the "Effective Date").

3.    Minimum Revenue Commitments. The following Minimum Revenue Commitments
      apply under this Attachment. For each Minimum Revenue Commitment, CUSTOMER
      commits that the Eligible Charges it incurs during each Commitment Period
      will equal or exceed the amount of the commitment. If CUSTOMER fails to
      meet any Minimum Revenue Commitment in a Commitment Period, then CUSTOMER
      will pay a Shortfall Charge equal to the difference between the Minimum
      Revenue Commitment and the amount of Eligible Charges for that Minimum
      Revenue Commitment incurred during the Commitment Period.

      A.    Private Line and Satellite Minimum Monthly Revenue Commitment (MMRC)

                           AT&T/CUSTOMER PROPRIETARY
                      Use Pursuant to Company Instructions

<PAGE>

                                                                     Page 2 of 5

AT&T Private Line and Satellite
Service Terms and Pricing

            1.    The Private Line and Satellite MMRC is $375,000. Each month of
                  the Term is a Commitment Period.

            2.    The Private Line and Satellite MMRC Eligible Charges consist
                  of the gross Monthly Recurring Charges, prior to the
                  application of any discounts or credits, for AT&T Private Line
                  Services, AT&T 1.544 Mbps Echo Cancellation, and AT&T
                  Satellite Services provided under this Attachment.

      B.    Local Channel MMRC.

            1.    The Local Channel MMRC is $0.00. Each month of the Term is a
                  Commitment Period.

            2.    The Local Channel MMRC Eligible Charges consist of the gross
                  Monthly Recurring Charges, prior to the application of any
                  discounts or credits, for AT&T Local Channel Services provided
                  under this Attachment.

4.    Rates and Charges. The Rates and Charges for the Services provided under
      this Attachment are the same as the undiscounted Rates and Charges under
      the applicable Tariffs, as amended from time to time, except as specified
      in this Attachment. AT&T reserves the right to change from time to time
      the rates for Services under this Agreement, regardless of any provisions
      that would otherwise stabilize rates or limit rate increases, to
      reasonably reflect charges or payment obligations imposed on AT&T stemming
      from an order, rule or regulation of the Federal Communications Commission
      or a court of competent jurisdiction, concerning universal service fund
      ("USF") charges, or other governmental charges or fees imposed in
      connection with the provision of Services

      A.    AT&T Private Line Services. The following monthly recurring charges
            apply for the listed services in lieu of the Inter Office Channel
            (IOC) monthly recurring charges specified in AT&T Service Guide. For
            an I0C with rate mileage of 100 miles or less, the monthly recurring
            charge is a fixed monthly charge, as set forth in the following
            chart. For an IOC with rate mileage of more than 100 miles, the
            monthly recurring charge is the product of the per mile charge set
            forth in the following chart, times the rate mileage of the IOC. The
            monthly recurring charges set forth below include the monthly
            recurring charges for associated Access Connections and Function
            Connections.

                                                  Fixed Monthly   Per Mile
                                                  Charge          Charge
                                                  (Rate mileage   (Rate mileage
            Service                               100 or less)    more than 100)
                                                  ------------    --------------

            AT&T Private Line SONET OC12 Services      [*]              [*]

            AT&T, ACCUNET SONET T155 Service           [*]              [*]

            AT&T ACCUNET T45 Service                   [*]              [*]

            AT&T ACCUNET T1.5 Service                  [*]              [*]

                           AT&T/CUSTOMER PROPRIETARY
                      Use Pursuant to Company Instructions

<PAGE>

                                                                     Page 3 of 5

AT&T Private Line and Satellite
Service Terms and Pricing

      B.    AT&T 1.544 Mbps Echo Cancellation. When AT&T 1.544 Mbps Echo
            Cancellation is associated with an AT&T ACCUNET T1.5 IOC, the
            Monthly Recurring Charge is [*] per IOC.

      C.    AT&T Local Channel Services.

            1.    AT&T ASDS 64 kbps and lower speed. The Monthly Recurring
                  Charges for a Local Channel are as follows:

                             ---------------------------------------------------
                                               Monthly Recurring Charge per
                                                       Local Channel
            --------------------------------------------------------------------
                  Speed      Mileage Band     Fixed                  Per Mile
                                                                     --------
             9.6/56/64Kbps         0+           [*]                     [*]

5.    Discounts. The following monthly discounts are the only discounts for the
      Services provided under this Attachment.

      A.    AT&T Private Line Services.

            1.    Domestic AT&T Private Line Services. A discount will be
                  applied each month to Monthly Recurring Charges for domestic
                  AT&T Private Line Services, as follows:

                  (a)   AT&T Private Line SONET OC12 IOC - [*]

                  (b)   AT&T ACCUNET SONET T155 10C -[*]

                  (c)   AT&T ACCUNET T45 IOC - [*]

                  (d)   AT&T ACCUNET T1.5 IOC - [*]

                  (e)   Other MSVPP-eligible services. For all other domestic
                        AT&T Private Line Services that if provided under AT&T
                        Service Guide would be eligible for discounting under
                        the Multiservice Volume Pricing Plan ("MSVPP"), the
                        amount of the discount is the same as the discount
                        specified in AT&T Service Guide, for a [*]

            2.    International AT&T Private Line Services. A discount will be
                  applied each month to the Monthly Recurring Charges for
                  international AT&T Private Line Services, as follows:
<TABLE>
<CAPTION>

                  --------------------------------------------------------------------------------------------
                  Service                                                                       Discount
                  --------------------------------------------------------------------------------------------
<S>                                                                                               <C>
                  AT&T International ACCUNET T45 Service-Canada                                    [*]
                  AT&T International ACCUNET 2.048 Mbps Service-Mexico
                  AT&T International ACCUNET T1.5 Service-Canada
                  AT&T International ACCUNET T1.5 Service-Mexico
                  AT&T International ACCUNET Spectrum of Digital Services-Canada
                  AT&T International ACCUNET Spectrum of Digital Services-Mexico
                  AT&T International DATAPHONE Digital Service- Canada
                  AT&T International DATAPHONE Digital Service- Mexico
                  --------------------------------------------------------------------------------------------
                  International T155 Service - Overseas                                            [*]
                  AT&T International ACCUNET T45 Service-Overseas
                  International Full and Half Channel Service - Overseas
                  AT&T International ACCUNET Digital Services
                  --------------------------------------------------------------------------------------------
                  AT&T International ACCUNET Spectrum of Digital-                                  [*]
                  Voice Grade Service
                  --------------------------------------------------------------------------------------------
</TABLE>

                           AT&T/CUSTOMER PROPRIETARY
                      Use Pursuant to Company Instructions

<PAGE>

                                                                     Page 4 of 5

AT&T Private Line and Satellite
Service Terms and Pricing

            B.    AT&T Satellite Services. A discount of [*] will be applied
                  each month to the Monthly Recurring Charges for AT&T
                  International Satellite Services- Shared Earth Station.

            C.    Local Channel Services. A discount will be applied each month
                  to Monthly Recurring Charges for AT&T Local Channel Services
                  that are connected to other Services provided under this
                  Attachment, as follows

                  1.    AT&T Terrestrial 1.544 Mbps Local Channels - [*]2.
                        AT&T Terrestrial 45 Mbps Local Channels - [*]

                  3.    Other Local Channel Services MSVPP-eligible services.
                        For all other AT&T Local Channel Services that if
                        provided under AT&T Service Guide would be eligible for
                        discounting under the Local Channel Services MSVPP, the
                        amount of the discount is the same as the discount
                        specified in AT&T Service Guide for a [*]

      D.    Frame Relay Services. A {*] discount will be applied each month to
            the Monthly Recurring Charges for the Frame Relay Services that, if
            provided under AT&T Service Guide as amended from time to time,
            would be eligible to receive a discount under the Frame Relay Volume
            Pricing Plan.

6.    Credits and Waivers. The following credits and waivers are the only
      credits and waivers that apply to the Services provided under this
      Attachment. No other promotions, credits or waivers apply.

            E.    [*]
                 ----

7.    Classifications, Practices and Regulations. Except as otherwise provided
      in this Attachment, the rates and regulations that apply to the Services
      provided under this Attachment are as set forth in the applicable Service
      Guide.

8.    Termination Charge. The following provision applies in lieu of any
      Discontinuance With or Without Liability provisions specified in the
      applicable Service Guide.

      A.    If CUSTOMER terminates this Attachment prior to the end of the Term,
            or if AT&T terminates this Attachment or the Service provided under
            this Attachment prior to the end of the Term due to CUSTOMER's
            breach of the Agreement, CUSTOMER will be billed a Termination
            Charge. The Termination Charge will be an amount equal to 50% of the
            unsatisfied Minimum Revenue Commitment(s) for the Commitment
            Period(s) in which the termination occurs, plus 50% of the Minimum
            Revenue Commitments for each Commitment Period remaining in the
            Term. In addition, CUSTOMER will be billed (1) any other applicable
            Termination Charges as set forth in this Attachment, and (2) an
            amount equal to the sum of any credits provided under this
            Attachment.

                           AT&T/CUSTOMER PROPRIETARY
                      Use Pursuant to Company Instructions

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

                                End of Attachment

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00064-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00064-of-00352.parquet"}]]