Indicating User Agent Capabilities in the Session Initiation Protocol
RFC 3840, “Indicating User Agent Capabilities in the Session Initiation Protocol”, is a Proposed Standard document published in August 2004 by J. Rosenberg, H. Schulzrinne, P. Kyzivat. The canonical text is published by the RFC Editor.
Abstract
This specification defines mechanisms by which a Session Initiation Protocol (SIP) user agent can convey its capabilities and characteristics to other user agents and to the registrar for its domain. This information is conveyed as parameters of the Contact header field. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 3840 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 3841 Caller Preferences for the Session Initiation Protocol
- RFC 3839 MIME Type Registrations for 3rd Generation Partnership Project Multimedia files
- RFC 3842 A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol
- RFC 3838 Policy, Authorization, and Enforcement Requirements of the Open Pluggable Edge Services
- RFC 3843 RObust Header Compression : A Compression Profile for IP
- RFC 3837 Security Threats and Risks for Open Pluggable Edge Services
- RFC 3844 IETF Problem Resolution Process
- RFC 3836 Requirements for Open Pluggable Edge Services Callout Protocols