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
ITU-T RECOMMENDATION T.30(2005 09)
SERIES T: TERMINALS FOR TELEMATIC SERVICES
Procedures for document facsimile transmission in the general switched telephone network
Draft ITU-T RECOMMENDATION and Final Draft International Standard of Joint Video Specification(ITU-T REec. H.264 | ISO/IEC 14496-10 AVC).H.264視頻編碼標準的中文翻譯版本，由沈燕飛對原文作翻譯。
Draft ITU-T RECOMMENDATION and Final Draft International Standard of Joint Video Specification(ITU-T Rec.H.264 | ISO/IEC 14496-10 AVC)
H.264編碼標準，主體部分是中英文對照
RECOMMENDATION ITU-R M.1653*,**
Operational and deployment requirements for wireless access systems including radio local area networks in the mobile service to facilitate sharing between these systems and systems in the Earth exploration-satellite service (active)
and the space research service (active) in the band 5 470-5 570 MHz
within the 5 460 5 725 MHz range
