HSCSD造句
1、Inmobiletelephony,2.5Gprotocolsextend2Gsystemstoprovideadditionalfeaturessuchaspacket-switchedconnection(GPRS)andenhanceddatarates(HSCSD,EDGE).2、在移動德律風技巧中,2.5G和談將2G系統擴充套件到供給諸如分...
1、Inmobiletelephony,2.5Gprotocolsextend2Gsystemstoprovideadditionalfeaturessuchaspacket-switchedconnection(GPRS)andenhanceddatarates(HSCSD,EDGE).2、在移動德律風技巧中,2.5G和談將2G系統擴充套件到供給諸如分...