prepaid cellular service

Cingular Wireless is the largest mobile phone company in the United States, with more than 57 million subscribers. The company claims to have the largest digital voice and data network. [1] With headquarters in Atlanta, Georgia, United States. Cingular operates a network of multiple technologies. The most widely used of these technologies is called Global System for Mobile Communications, or GSM. On top of their GSM network they run a data network called GPRS (General Packet Radio Service) and an upgrade for faster speeds called EDGE (Enhanced Data rates for GSM Evolution). Free Phone Guy_ | Wireless Services and Cell Phones | Cellular - Family Cell Phone Plans and Service. Cingular supports their legacy TDMA and analog networks; however in March 2006 they announced that these networks would be shut down in 2008. As part of this effort, Cingular will charge a $5 monthly fee to those customers who still use TDMA phones. [2] Former networks include various paging services and the Cingular Interactive division that became Velocita Wireless which was recently purchased by Sprint Nextel. [3]

Among the services that Cingular aggressively promotes is its "Rollover" service, allowing customers to keep unused minutes from month to month on a twelve-month rolling cycle on its popular "Nation" nationwide plans.

History

Cingular Wireless was formed in 2001 as a joint venture of SBC Communications (now AT&T) and BellSouth (soon to be purchased by AT&T). The joint venture created the nation's second largest carrier. Prepaid prepaid mobile phone, prepaid cellular service, No roaming cellular phone.