Session Initiation Protocol (SIP) Header Parameter for Debugging

Document Type Expired Internet-Draft (individual)
Author Peter Dawes 
Last updated 2012-08-23 (latest revision 2012-02-20)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Networks that use SIP to start and stop sessions between their users will frequently be upgraded with software and hardware changes. Users will similarly frequently change their client software and the way they use the network. In order to allow troubleshooting and regression testing, it is useful to provide debugging as part of the network fabric. This draft describes an event package that provides debugging configuration to SIP entities and a SIP private header that triggers logging of SIP signalling and identifies logs at mulitiple SIP entities as belonging to a single end-to-end session. A list of related IETF drafts and non-IETF specifications is included to help develop this topic.


Peter Dawes (

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