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G.727 Last modified: Wednesday, May 07, 2008
An International Telecommunications Union (ITU-T) standard for for audio (speech) compression and decompression that is used in digital transmission systems, and in particular, used for the coding of analog signals into digital signals. G.727 is a specialized version of the ITU-T G.726 protocol that is intended for packet-based systems using the Packetized Voice Protocol (PVP). G.727 uses 5, 4, 3 and 2-bit/sample embedded Adaptive Differential Pulse Code Modulation (ADPCM). (See also ADPCM). See G.7xx for more information on how these standards are used in telephony networks. See also ADPCM.
Enterprise VoIP Planet The IT Manager's Guide to Voice over IP ITU Recommendation G.727 5-, 4-, 3- and 2-bit/sample embedded adaptive differential pulse code modulation (ADPCM) Six Steps to Getting Your Network Ready for Voice over IP Using low bandwidth CODECs helps reduce bandwidth requirements however due to the overhead of IP, UDP and RTP protocols, such reduction is limited. The International Telecommunication Union The International Telecommunication Union is an international organization within which governments and the private sector coordinate global telecom networks and services. This home page offers numerous links to highlights and current topics, standardization, radiocommunication, telecommunication, and general secretariat sectors. Webopedia's Quick Reference Section Use this Webopedia reference section for information on common Internet and computer facts and occurrences.	Related Categories Internet Protocols Standards Telecommunications Related Terms ADPCM analog codec compression G.711 G.721 G.722 G.723 G.726 G.7xx Internet Protocol Internet telephony ITU PCM telecommunications VoIP