RFC 5028 · PROPOSED STANDARD · 2007
SUN · 14 JUN 2026
A Telephone Number Mapping Service Registration for Instant Messaging Services
Overview
RFC 5028, “A Telephone Number Mapping Service Registration for Instant Messaging Services”, is a Proposed Standard document published in October 2007 by R. Mahy. It has since been updated by RFC 6118. The canonical text is published by the RFC Editor.
Abstract
This document registers a Telephone Number Mapping (ENUM) service for Instant Messaging (IM). Specifically, this document focuses on provisioning 'im:' URIs (Uniform Resource Identifiers) in ENUM. [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 5028 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2007
- RFC 5027 Security Preconditions for Session Description Protocol Media Streams
- RFC 5029 Definition of an IS-IS Link Attribute Sub-TLV
- RFC 5026 Mobile IPv6 Bootstrapping in Split Scenario
- RFC 5030 Mobile IPv4 RADIUS Requirements
- RFC 5025 Presence Authorization Rules
- RFC 5024 ODETTE File Transfer Protocol 2.0
- RFC 5032 WITHIN Search Extension to the IMAP Protocol
- RFC 5023 The Atom Publishing Protocol