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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. 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 ...

  4. SBC - Wikipedia

    en.wikipedia.org/wiki/SBC

    SBC Cinemas, cinema chain in Taiwan, now part of Vue International; SBC Telecom, a US telecom corporation; Seattle's Best Coffee, American coffee retailer; Security Bank Corporation, Philippines; Service Bureau Corporation, former IBM subsidiary divested in 1973; South Bay Conservatory, a performing arts company, Los Angeles, California, US

  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. SNET America - Wikipedia

    en.wikipedia.org/wiki/SNET_America

    In 2003, SNET America began doing business as SBC Long Distance East. In 2005, when SBC changed its name to AT&T , SNET America began doing business as AT&T Long Distance East . On December 17, 2013, AT&T announced plans to sell SNET America and its companion incumbent local exchange carrier Southern New England Telephone to Frontier ...

  7. 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 ...

  8. ATT - Wikipedia

    en.wikipedia.org/wiki/Att

    ATT may refer to: . AT&T (disambiguation) AT&T Inc., an American telecommunications company founded 1983 (formerly Southwestern Bell or SBC Communications); AT&T Corporation, the original AT&T founded 1885 (formerly American Telephone & Telegraph), purchased by SBC in 2005

  9. Michigan Bell - Wikipedia

    en.wikipedia.org/wiki/Michigan_Bell

    When this had been accomplished, in 2005, SBC Communications acquired AT&T. The newly merged company began marketing itself throughout the United States as the "new" AT&T. Michigan Bell is still the legal entity that provides telecommunications services in Michigan under the AT&T name. It is headquartered in Detroit. [citation needed