2g (1) 썸네일형 리스트형 가상 3GPP Release History Version Released Date Detail Phase 1 1992 GSM Features Phase 2 1995 GSM Features, EFR Codec, Release 96 1997 Q1 GSM Features, 14.4 kbit/s User Data Rate, Release 97 1998 Q1 GSM Features, GPRS Release 98 1998 GSM Features, AMR, EDGE, GPRS for PCS1900 Release 99 2000 Q1 Specified the first UMTS 3G networks, incorporating a CDMA air interface Release 4 2001 Q2 Originally called the Release 2000 - a.. 2011. 4. 21. 10:31 이전 1 다음