Private Session Initiation Protocol Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling Architecture
RFC 3603, “Private Session Initiation Protocol Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling Architecture”, is an Informational document published in October 2003 by W. Marshall, F. Andreasen. It has been obsoleted by RFC 5503 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
In order to deploy a residential telephone service at very large scale across different domains, it is necessary for trusted elements owned by different service providers to exchange trusted information that conveys customer-specific information and expectations about the parties involved in the call. This document describes private extensions to the Session Initiation Protocol (SIP) (RFC3261) for supporting the exchange of customer information and billing information between trusted entities in the PacketCable Distributed Call Signaling Architecture. These extensions provide mechanisms for access network coordination to prevent theft of service, customer originated trace of harassing calls, support for operator services and emergency services, and support for various other regulatory issues. The use of the extensions is only applicable within closed administrative domains, or among federations of administrative domains with previously agreed-upon policies where coordination of charging and other functions is required.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 3603 is hosted at rfc-editor.org. Available in TXT,HTML.
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