ITU-T Recommendation V.90 98年9月版本
A DIGITAL modeM AND ANALOGUE modeM PAIR FOR USE ON THE PUBLIC SWITCHED TELEPHONE NETWORK (PSTN) AT DATA SIGNALLING RATES OF UP TO 56 000 bit/s DOWNSTREAM AND UP TO 33 600 bit/s UPSTREAM
標簽：
modeM
Recommendation
ANALOGUE
DIGITAL
上傳時間：
2014-01-17
上傳用戶：hn891122
