IANA Considerations for IAX: Inter-Asterisk eXchange Version 2

Abstract

This document establishes the IANA registries for IAX, the InterAsterisk eXchange protocol, an application-layer control and media protocol for creating, modifying, and terminating multimedia sessions over Internet Protocol (IP) networks. IAX was developed by the open source community for the Asterisk PBX and is targeted primarily at Voice over Internet Protocol (VoIP) call control, but it can be used with streaming video or any other type of multimedia. Status of This MemoThis document is not an Internet Standards Track specification; it is published for informational purposes. This is a contribution to the RFC Series, independently of any other RFC stream. The RFC Editor has chosen to publish this document at its discretion and makes no statement about its value for implementation or deployment. Documents approved for publication by the RFC Editor are not a candidate for any level of Internet Standard; see Section 2 of RFC 5741.Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at

Tel-MPLS: a new method for maximizing the utilization of IP telephony over MPLS networks

“…IAX substitutes its own 4-byte mini-header for RTP's 12-byte protocol in order to transmit digital speech data. In addition, it employs minimal encoding that decreases bandwidth use, making it a good alternative for internet telephone services [14], [31].…”