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  2. SBC Telecom - Wikipedia

    en.wikipedia.org/wiki/SBC_Telecom

    SBC Telecom, Inc. d/b/a AT&T Small Business is a CLEC owned by AT&T that offers local telephone service outside the AT&T Bell Operating Company regions. [1] [better source needed] It was formed in 1999 following provisions that required SBC Communications to offer telephone service outside its boundaries in order to get approval to merge with Ameritech.

  3. SBC Long Distance - Wikipedia

    en.wikipedia.org/wiki/SBC_Long_Distance

    SBC Long Distance is a separate subsidiary than AT&T Communications, the incumbent long-distance carrier for most of the country acquired in the SBC merger with AT&T. SBC Long Distance started in 1996 as Southwestern Bell Communications Services, Inc. , created as a result of the Telecommunications Act of 1996 which allowed the Baby Bells to ...

  4. Session border controller - Wikipedia

    en.wikipedia.org/wiki/Session_border_controller

    In many cases the SBC hides the network topology and protects the service provider or enterprise packet networks. The SBC terminates an inbound call and initiates the second call leg to the destination party. In technical terms, when used with the SIP protocol, this defines a back-to-back user agent (B2BUA). The effect of this behavior is that ...

  5. Southwestern Bell - Wikipedia

    en.wikipedia.org/wiki/Southwestern_Bell

    SBC Southwestern Bell logo, 2001–2002. From late 2002 to 2005, Southwestern Bell conducted business under the following names: SBC Arkansas, SBC Kansas, SBC Missouri, SBC Oklahoma, SBC Southwest, and SBC Texas. Southwestern Bell payphone with new AT&T signage. SBC Communications bought AT&T Corp. on November 18, 2005, and changed its name to ...

  6. Southwestern Bell Yellow Pages - Wikipedia

    en.wikipedia.org/wiki/Southwestern_Bell_Yellow_Pages

    Telephone numbers to the company also were cleverly named; if customers sought to order more telephone books, they called 1-800-SWB-BOOK; for the advertising side, 1-800-4SWBYPS. In 1995, Southwestern Bell Corporation changed its name to SBC Communications.

  7. Pacific Bell - Wikipedia

    en.wikipedia.org/wiki/Pacific_Bell

    However, for legal and regulatory purposes, employees supporting local regulated services were still employed by "Pacific Bell Telephone Company dba SBC California ("SBC California")" which is the SBC subsidiary that provides regulated local exchange carrier telephone services within the franchise territory in California. Pacific Bell logo ...

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