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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 V.90 Se
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ITU-T RECOMMENDATION V.250
SERIAL ASYNCHRONOUS AUTOMATIC DIALLING AND CONTROL
99年5月版本-ITU-T RECOMMENDATION V.250 SERIAL ASYNCH RONOUS AUTOMATIC DIALING AND CONTROL May 99 version
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ITU-T Recommendation G.729
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ITU-T Recommendation T.30(2005 09)
SERIES T: TERMINALS FOR TELEMATIC SERVICES
Procedures for document facsimile transmission in the general switched telephone network-ITU-T Recommendation 7-9-2 (2005 09) SERIE S T : TERMINALS FOR TELEMATIC SERVIC
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NTERNATIONAL TELECOMMUNICATION UNION ITU-T T.4 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (07/2003) ITU-T T.4 2003. SERIES T: TERMINALS FOR TELEMATIC SERVICES Standardization of Group 3 facsimile terminals for document transmission ITU-T Recomme
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H.263 文档 DRAFT ITU-T Recommendation H.263 VIDEO CODING FOR LOW BITRATE COMMUNICATION-H.263 ITU-T Recommendation H.263 VIDEO CODING FOR LOW BITRATE COMMUNICATION
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calculates the active level of a speech segment according to ITU-T recommendation P.56.,calculates the active level of a speech segment according to ITU-T recommendation P.56.
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CCIR656(BT656)标准
ITU-R Recommendation 656 - Standard Text -ITU-R Recommendation 656- Standard Text
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通信系统 ITU－T G.729 Annex B 语音压缩标准-ITU-T Recommendation G.729 – Annex B
A silence compression scheme for G.729 optimizedfor terminals conforming to recomendationV7.0
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关于电信安全的若干议题综述
及相关ITU-T建议书应用简介-On a number of telecommunications security and related issues Summary of ITU-T Recommendation Application
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the key processing steps of the Baseline JPEG encoder and decoder. (Refer to the attached ITU-T Recommendation T.81 for detailed information.)
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This memo describes an RTP Payload format for the ITU-T Recommendation H.264 video codec and the
technically identical ISO/IEC International Standard 14496-10 video codec. The RTP payload format allows
for packetization of one or more Network Abs
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此文档为T.30建议书
本建议书规定了ITU-T T.4建议书定义的三类传真终端使用的规程。这些规程可以在公用
电话交换网、国际租用电路和综合业务数字网（ISDN）上传送文件。进一步，这些规程允许
人工或自动方式通信，并可以要求文件传输会话交替进行。-This document recommends books for the T.30 Recommendation provides ITU-T T.4 Recommendation defines three types of en
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ASN.1 编码规则：分组编码规则,各种数据类型的ASN.1的编码方式,非常有用,值得一看-ITU-T Recommendation X.690 (2002) | ISO/IEC 8825-1:2002, Information technology –ASN.1 encoding rules:Specification of Packed Encoding Rules (PER)
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Abstract
This memo describes an RTP Payload format for the ITU-T
Recommendation H.264 video codec and the technically identical
ISO/IEC International Standard 14496-10 video codec. The RTP payload
format allows for packetization of one
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Recommendation ITU-T H.264
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Perceptual Evaluation of Speech Quality (PESQ) - ITU-T Recommendation P.862.
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Work on the emerging “Advanced Video Coding” standard now known as ITU-T Recommendation
H.264 and as ISO/IEC 14496 (MPEG-4) Part 10 has dominated the video coding
standardization community for roughly the past three years. The work has been stimu
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根据国际电信联盟标准P.56对语音信号的作用电平进行计算。-calculates the active level of a speech segment according to ITU-T recommendation P.56
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双音多频 DTMF（Dual Tone Multi Frequency），双音多频，由高频群和低频群组成，高低频群各包含4个频率。-Dual-tone multi-frequency signaling (DTMF) is used for telecommunication signaling over analog telephone lines in the voice-frequency band between telephone handsets and other communic
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