RFC 5456: IAX: Inter-Asterisk eXchange Version 2
In plain English — editorial summary, not part of the RFC
This document describes IAX, the Inter-Asterisk 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 Private Branch Exchange (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. IAX is an "all in one" protocol for handling multimedia in IP networks. It combines both control and media services in the same protocol. In addition, IAX uses a single UDP data stream on a static port greatly simplifying Network Address Translation (NAT) gateway traversal, eliminating the need for other protocols to work around NAT, and simplifying network and firewall management. IAX employs a compact encoding that decreases bandwidth usage and is well suited for Internet telephony service. In addition, its open nature permits new payload type additions needed to support additional services. This document is not an Internet Standards Track specification; it is published for informational purposes.
Document record
- Document ID
- RFC5456
- Published
- February 2010
- Authors
- M. Spencer; B. Capouch; E. Guy; F. Miller; K. Shumard
- Status
- INFORMATIONAL
- Stream
- INDEPENDENT
- Area
- —
- Pages
- 101
- Also known as
- —
- Updated by:
- RFC 8996
Topics
Referenced by
One later RFC formally updates or obsoletes part of this document.
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 5457IANA Considerations for IAX: Inter-Asterisk eXchange Version 2Current
February 2010
- RFC 6035Session Initiation Protocol Event Package for Voice Quality ReportingCurrent
November 2010
- RFC 3991Media Gateway Control Protocol (MGCP) Redirect and Reset PackageCurrent
February 2005
- RFC 3625The QCP File Format and Media Types for Speech DataCurrent
October 2003
- RFC 5389Session Traversal Utilities for NAT (STUN)Obsoleted
October 2008
- RFC 5359Session Initiation Protocol Service ExamplesCurrent
October 2008
- RFC 5574RTP Payload Format for the Speex CodecCurrent
June 2009
- RFC 5765Security Issues and Solutions in Peer-to-Peer Systems for Realtime CommunicationsCurrent
February 2010
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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