Re: R: [Sipping-tispan] Re: CCBS/CCNR in Version -02f

Tessa Silvia wrote:

> What I haven't understood from the discussion is the outcome, is it a requirement ?
> If so, would it be okay to add/modify a requirement as:
> 
> When the service-specific condition related to the callee's state is met,
> the CCBS/CCNR service must be able to reach the caller at any of his locations.
> 

I agree on adding this requirement, which indeed is captured in ETS 300 
357 under a subscription option call "Recall mode":

-	Global, i.e. CCBS recall offered to all terminals.
-	Specific, i.e. CCBS recall offered to the terminal which activated the 
CCBS supplementary service.

But it seems that the you are considering only the caller in your 
requirement. Don't we have a similar requirement for the callee as well?
Apparently ETS 300 357 considers also multiple terminals for the callee:

"A check for a compatible terminal which is not busy at destination B 
shall be performed (see annex A). If such a terminal does not exist, 
further requests which are not suspended shall be examined. "

Proposal:

Add another requirement:
The service-specific condition related to the callee's state must take 
into account the state of the user at different terminals he might be using.

/Miguel
-- 
Miguel A. Garcia           tel:+358-50-4804586
sip:miguel.an.garcia@openlaboratory.net
Nokia Research Center      Helsinki, Finland

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