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2. Toll-free telephone numbers in the North American Numbering Plan

   en.wikipedia.org/wiki/Toll-free_telephone...

   In the early 1980s, Bell Labs received a patent for what became AT&T's "Advanced 800 Service", a computer-controlled system where any toll-free number could point to any destination number, such as to a small business local number instead of a special InWATS line, and an itemized bill generated only for the calls the business actually received.

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. Long-distance calling - Wikipedia

   en.wikipedia.org/wiki/Long-distance_calling

   Long-distance calling from landlines was opened to competition in the early 1990s and the use of long-distance revenue to subsidise local service was phased out a few years later. It is not possible for mobile telephone subscribers or coin-paid telephone users to select a default carrier, so long-distance calls are often priced higher from ...

5. AT&T Communications - Wikipedia

   en.wikipedia.org/wiki/AT&T_Communications

   AT&T Phone (formerly AT&T U-verse Voice) is a voice communication service delivered over AT&T's IP network . This phone service is digital and provides a voicemail service accessed by *98 from the home number. Customers who subscribe to both AT&T Phone and U-verse TV get features such as call history on channel 9900, which displays the last 100 ...

6. AT&T proposes ending California landline service, customers ...

   www.aol.com/news/t-proposes-ending-california...

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7. Telephone numbering plan - Wikipedia

   en.wikipedia.org/wiki/Telephone_numbering_plan

   This concept was first developed in the planning for a nationwide numbering plan for Operator Toll Dialing and direct distance dialing (DDD) in the Bell System in the United States in the 1940s, a system that resulted in the North American Numbering Plan for World Zone 1. [4] AT&T divided the United States and Canada into numbering plan areas ...