Cingular has the largest digital voice and data network in the nation and the largest mobile-to-mobile community of any national wireless carrier. More than 48 million subscribers rely on Cingular calling plans to connect along this vast digital voice and data network.
Cingular's various calling plans are described on CellularChoices.com, so users can get details on some of Cingular's most popular features. Cingular is the only U.S. wireless carrier to offer Rollover, a unique wireless plan that lets customers keep their unused monthly minutes for use in later months. In addition, some Cingular cellular plans offer free VoiceMail, Call Waiting, Caller ID, 3-Way Calling and Call Forwarding. Two of their most popular features, free nationwide long distance and free roaming, make Cingular the ideal choice for people who travel often.
Many Cingular cell plan users rely on the company's EDGE high-speed network for data exchange and wireless internet access. For voice, text messaging and multimedia messaging, Cingular's current network uses GSM/GPRS technology, going over both the cellular (800/850 MHz) and PCS (1900 MHz) bands. Cingular is also deploying WCDMA (UMTS) and HSDPA technologies for future system upgrades.