RE: [Sip] B2BUA & Max-Forwards

["Roy, Radhika R, ALASO" <rrroy@att.com>]

Adam:

I would appreciate if you would clarify the following questions provided inline [RRR].

Radhika


> Is the UAS part in in BtoBUA is bound by the definition and rules 
> in 3261? 

Yes. I'll revise your drawing to more clearly show what is going on here.

UAC(a)--->UAS(b)===[application logic here]===UAC(b)--->UAS(c)

/a

[RRR] I like to know who has been the called party when UAC(a)) sent the INVITE message? Has it been UAS(b) or UAS(c)?

[RRR] If the answer is UAS(c), the question is: Why the call has been routed to UAS(b) by UAC(a) in the first place?

[RRR] If the answer is UAS(b), probably UAC(a) does not care.
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