RFC 4904 · PROPOSED STANDARD · 2007
SUN · 14 JUN 2026
Representing Trunk Groups in tel/sip Uniform Resource Identifiers
Overview
RFC 4904, “Representing Trunk Groups in tel/sip Uniform Resource Identifiers”, is a Proposed Standard document published in June 2007 by V. Gurbani, C. Jennings. The canonical text is published by the RFC Editor.
Abstract
This document describes a standardized mechanism to convey trunk group parameters in sip and tel Uniform Resource Identifiers (URIs). An extension to the tel URI is defined for this purpose. [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.
Read this RFC
The canonical text of RFC 4904 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 2007
- RFC 4903 Multi-Link Subnet Issues
- RFC 4905 Encapsulation Methods for Transport of Layer 2 Frames over MPLS Networks
- RFC 4902 Integrity, Privacy, and Security in Open Pluggable Edge Services for SMTP
- RFC 4906 Transport of Layer 2 Frames Over MPLS
- RFC 4901 Protocol Extensions for Header Compression over MPLS
- RFC 4907 Architectural Implications of Link Indications
- RFC 4908 Multi-homing for small scale fixed network Using Mobile IP and NEMO
- RFC 4909 Multimedia Internet KEYing General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport