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I-D ACTION:draft-henrikson-sip-original-dialog-id-02.txt



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	Title		: Private SIP Extension for Original Dialog Identifier
	Author(s)	: E. Henrikson
	Filename	: draft-henrikson-sip-original-dialog-id-02.txt
	Pages		: 9
	Date		: 22-May-02
	
This memo describes a private extension to SIP in the form of a  
P-Original-Dialog-ID header. The header is used to correlate two 
different dialogs across a B2BUA that is non-transparent to 
dialogs. The contents of the header identify the original dialog 
(Call-id, From tag, To tag) associated with the SIP entity that 
inserted the header into a request. When the same instance of the 
header is received at that SIP entity in a different request, then 
it is used to correlate the two different dialogs.

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