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About: Digital AMPS     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:SystemOfMeasurement113577171, within Data Space : dbpedia.org associated with source document(s)

Type: placeyago:WikicatMobilePhoneStandardsyago:Abstraction100002137yago:Measure100033615yago:Standard107260623yago:SystemOfMeasurement113577171 New Facet based on Instances of this Class

IS-54 and IS-136 are second-generation (2G) mobile phone systems, known as Digital AMPS (D-AMPS), and a further development of the North American 1G mobile system Advanced Mobile Phone System (AMPS). It was once prevalent throughout the Americas, particularly in the United States and Canada since the first commercial network was deployed in 1993. D-AMPS is considered end-of-life, and existing networks have mostly been replaced by GSM/GPRS or CDMA2000 technologies. IS-54 is the first mobile communication system which had provision for security, and the first to employ TDMA technology.