Re: Is GRUU generated in the case of registration with instance-ID and reg-ID

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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