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2. 5ESS Switching System - Wikipedia

   en.wikipedia.org/wiki/5ESS_Switching_System

   The 5ESS switch has three main types of modules: the Administrative Module (AM) contains the central computers; the Communications Module (CM) is the central time-divided switch of the system; and the Switching Module (SM) makes up the majority of the equipment in most exchanges. The SM performs multiplexing, analog and digital coding, and ...

3. U-verse TV - Wikipedia

   en.wikipedia.org/wiki/U-verse_TV

   The current U-verse TV ultimately derives from the IPTV part of the former AT&T U-verse triple-play telecommunications service.. SBC Communications announced its plans for a fiber-optic network and Internet Protocol television (IPTV) deployment in 2004 and unveiled the name "U-verse" (formerly "Project Lightspeed" [5]) for the suite of network services in 2005.

4. AT&T Internet - Wikipedia

   en.wikipedia.org/wiki/AT&T_Internet

   AT&T Internet is an AT&T brand of broadband internet service. Previously, AT&T Internet was branded as U-verse Internet and bundled with U-verse TV, which was spun off into the newly independent DirecTV in 2021. AT&T Internet plans powered by fiber-optic cable use the AT&T Fiber brand.

5. AT&T Wireless Services - Wikipedia

   en.wikipedia.org/wiki/AT&T_Wireless_Services

   Partnering with AT&T as a technology provider, McCaw introduced their "Cellular One" service in 1990, the first truly national cellular system. AT&T purchased 33% of the company in 1992 and arranged a merger in 1994 that made Craig McCaw one of AT&T's largest shareholders. In 2002, the company was spun off from AT&T to become AT&T Wireless ...

6. No. 4 Electronic Switching System - Wikipedia

   en.wikipedia.org/wiki/No._4_Electronic_Switching...

   AT&T Long Distance was the primary customer for the switch. Driving development from the customer's perspective was AT&T VP Billy Oliver. [4] Previous tandem switching systems, primarily the No. 4 Crossbar switch, used analog voice signaling. The decision to switch in a digital voice format was controversial at the time, both from a technical ...

7. List of mobile virtual network operators in the United States

   en.wikipedia.org/wiki/List_of_mobile_virtual...

   Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

8. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   firefox-startpage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

9. 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 ...