DIAMETER: Policy and Accounting Extension for SIP

Document Type Expired Internet-Draft (individual)
Authors Henning Schulzrinne  , Ping Pan  , Pat Calhoun 
Last updated 1998-11-18
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a policy and accounting information exchange mechanism between a DIAMETER policy server and a SIP proxy server. A DIAMETER server is responsible for maintaining a user policy and accounting database and a means to update it. A SIP proxy server needs to contact a DIAMETER server during multimedia session setup and teardown time to perform admission control and accounting tasks. To provide proper data-forwarding level service guarantees to the SIP sessions, the DIAMETER servers are also responsible for interfacing with the network resource management database. However, this is beyond the scope of this document. The objectives of the proposed DIAMETER extension are 1) providing accurate accounting information, 2) flexible and 3) simple to implement. The protocol does not make any assumption about policy and billing algorithms at DIAMETER servers.


Henning Schulzrinne (hgs+geopriv@cs.columbia.edu)
Ping Pan (pan@watson.ibm.com)
Pat Calhoun (pcalhoun@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)