ATIS - Alliance for Telecommunications Industry Solutions
Scope
This technical report was prepared by T1A1.6 (now superseded by T1A1.7). It summarizes Committee T1's current views on speech packetization as discussed in Committee T1 and in the CCITT (ITU-T). These views may change in the future. This report does not address the following topics: the different treatments within the network that may be accorded to packets depending on their assignment to priority classes ?? in general@ however@ it is agreed that the network should give priority to speech over digital data to reduce delay and delay variability@ and to decouple bursty traffic from real-time traffic; quality of service for different traffic classes. In March 1993@ the International Telecommunication Union (ITU) was reorganized and the CCITT renamed as the Telecommunication Standardization Sector (ITU-T). Documents prior to March 1993 will be referred to as CCITT documents while those after March 1993 are ITU-T documents. Purpose The purpose of this technical report is to: ? explain the various issues that affect the packetization of speech; ? provide an overview of the techniques and considerations in the transport of packetized speech@ as explained in existing packetized speech standard protocol in ANSI T1.312-1991 (CCITT Recommendation G.764); ? disseminate information on the various topics of concern to designers@ implementors of packetized speech equipment and to the service providers that use them. The report draws heavily on the protocols of ANSI T1.312-1991. Application The intended use of this document is to provide background information on speech packetization. The purpose of this report was not to develop a standard@ but to make the technical information widely available within the telecommunications industry.