RFC 4661 · PROPOSED STANDARD · 2006

An Extensible Markup Language -Based Format for Event Notification Filtering

Overview

RFC 4661, “An Extensible Markup Language -Based Format for Event Notification Filtering”, is a Proposed Standard document published in September 2006 by H. Khartabil, E. Leppanen, M. Lonnfors, J. Costa-Requena. The canonical text is published by the RFC Editor.

Abstract

The SIP event notification framework describes the usage of the Session Initiation Protocol (SIP) for subscriptions and notifications of changes to a state of a resource. The document does not describe a mechanism whereby filtering of event notification information can be achieved. Filtering is a mechanism for defining the preferred notification information to be delivered and for specifying triggers that cause that information to be delivered. In order to enable this, a format is needed to enable the subscriber to describe the state changes of a resource that cause notifications to be sent to it and what those notifications are to contain. This document presents a format in the form of an XML document. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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 4661 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 2006

Who Is Online

In total there are 91 users online: 0 registered, 84 guests and 7 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Other Bot PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372