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

Jesske, R wrote:
> Dear Miguel and Mike,
> The ETSI specification is based on Q.733.3. Within this specification it is described how a CCBS call can be rejected by the user B. 
> 
> ...For example if the destination local exchange knows that the CCBS is forbidden on the destination B user, then the diagnostic field shall be set to "CCBS not possible". Otherwise the diagnostic field shall be set to "CCBS possible"....
> 
> So this describes if user be does not allows a CCBS call. This is a little hidden within the spec. But it is stated. So we can write  such a requirement. So either we need such an indication  "CCBS possible" or the CCBS request shall be rejected by the AS of the callee.

I can't quite tell from this description, but it sounds like this covers 
the case where CCBS is universally forbidden at destination B. Does it 
also cover the case where user B decides on a case by case basis not to 
accept a CCBS from a particular caller, at a particular point in time?

(This would require user B to be made aware of the CCBS when it is 
queued, rather than only when user B is alerted for the resulting call. 
Its not something that would easily be done on a black phone, but might 
be considered similar to call waiting.)

	Paul

_______________________________________________
Sipping-tispan mailing list
Sipping-tispan@ietf.org
https://www1.ietf.org/mailman/listinfo/sipping-tispan