GSM: Future Developments
n phase 2+
enhanced full rate speech
uses improvements in speech coding to provide wireline
quality on current full rate channels
possible to use different speech coding algorithms, or use
adaptive tradeoff between channel and source coding
GPRS: General Packet Radio Service
high-speed data rates
group call allows one group member to talk while others listen,
with efficient use of radio channels
interworking with satellite communications
interworking with developments in fixed networks, in particular
Universal Personal Telecommunications (UPT) and Intelligent
Networks (IN)
n evolution towards UMTS