Voice Packetization-Packetized Voice Protocol
|Publication Date:||1 May 1991|
This standard defines a Packet Voice Protocol (PVP) for speech packetization in permanent virtual circuit applications. The packetized voice protocol can be used, for example, at bit rates above 64 kbit/s and less than 150 Mbit/s and in fractional DS1 applications.
The protocol defines formats and procedures for the transport of voice information and channel- associated signaling over a wideband packet network.
The standard accommodates additional future types, including optional internetworking capabilities with the digital cellular radio networking application under development in the TIA standards forums (TR45.3).
The extension of this standard for baseband facsimile traffic is currently under study.
This standard does not address performance issues.
This standard does not address methods for coding speech samples, although particular coding standards are specified in the protocol (e.g., the algorithms in ANSI T1.303-1989). In particular, the standard allows dynamic bandwidth allocation and graceful congestion control when the speech samples are coded with embedded algorithms such as those specified in ANSI T1.310-1991.
This standard does not address the following issues:
- services based on the interface;
- implementation techniques;
- performance guidelines relative to the use of packetized speech;
- equipment aspects;
- trunk-signaling, link-establishment, and call-establishment procedures for switched virtual circuits;
- data-only issues, combined data/voice issues, and frame relay issues;
- speech packetization in Asynchronous Transfer Mode (ATM) (B-ISDN) systems.
NOTE - The user's attention is called to the possibility that compliance with this standard may require use of an invention covered by patent rights.
By publication of this standard, no position is taken with respect to the validity of this claim or of any patent rights in conjunction therewith. The patent holder has, however, filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license. Details may be obtained from the publisher.
Purpose and application
This standard can be applied for packetization of speech and in fractional DS1 applications.