I think that's in the GRUU spec.
________________________________
From: Christer Holmberg [mailto:[EMAIL PROTECTED]
Sent: Friday, October 10, 2008 16:12
To: [email protected]
Cc: Audet, Francois (SC100:3055); [EMAIL PROTECTED]
Subject: [Sip] Is GRUU generated in the case of registration with
instance-ID and reg-ID
Hi Francoise,
So, how would the registrar know whether a GRUU is requested or not in
the case described by Georg? Based on whether the gruu option-tag is present?
It would be good to clarify this in the outbound spec.
Regards,
Christer
>>I think you are correct.
>>
>>It doesn't mean we couldn't re-use reg-id for other purposes however.
>Hello,
>
>Both Outbound and GRUU drafts make use of the instance-ID for
different purposes during SIP registration. In GRUU only the instance-ID is
needed to generate a GRUU. >For Outbound both, instance-ID and reg-ID are
needed.
>
>My question now is, whether a GRUU will be generated when a REGISTER
is received at the registrar, which indicates both reg-ID and instance-ID in
the Contact
>header. Reading outbound, it seems like instance-ID + reg-ID are
*only* used for outbound purposes.
>
>Thanks a lot for your help.
>
>Best regards
>Georg
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