Subject: [Sip] clarification: multiple outbound registrations and temporary GRUUs: scope of invalidation

From: "Jeroen van Bemmel" <[email-masked]>
Date: Fri, 4 May 2007 08:05:39 +0200

All,

If a UAC performs multiple outbound registrations (reg-id=1 & reg-id=2) and 
uses GRUU, the outbound examples show it uses different Call-IDs. Does that 
mean that the second registration invalidates the temporary GRUU returned in 
the first 200 OK?

In other words: should the temporary GRUU returned for the first Contact be 
the same, or different?

Should outbound recommend to use the same Call-ID for multiple 
registrations? (and different from-tags)?

Regards,
Jeroen 
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