[SIPForum-discussion] Fwd: Behaviour of B2BUA for BYE

[vijay pal]

Hello Ganzalo,

As per my openion, B2BUA will send SIP/2.0 200 OK to UA1 once it receive
SIP/2.0 200 OK from UA2.

Yes, this associated to UA2 at some point.
Yes, B2BUA ack BYE to UA1 as soon as its able to process it but after
receiving SIP/2.0 200 OK from UA2.

Please let me know if think some thing different.


Regards
Vijay Pal

On Thu, Apr 7, 2011 at 3:20 AM, Gonzalo Gasca <gogasca at cisco.com> wrote:

> I have this scenario:
>
> UA1 ---callid xyz --> B2BUA —callid abc--> UA2
>
> UA1 starts a succesful call to UA2,
> B2BUA is in charge of call routing
> In this case UA1 is a cisco phone and UA2 is a Cisco SBC
> B2BUA is CUCM
>
> Once UA1 hangs up, it sends a BYE to B2BUA, then B2BUA will disconnect UA2
> as well.
> My question is:
> In which moment should B2BUA should send SIP/2.0 200 OK for this BYE
> message to UA1, is this associated to UA2 at some point? or should be
> independent transactions? Should B2BUA ack BYE to UA1 as soon as its able to
> process it?
>
> Thanks
>
>
> --
> Gonzalo Gasca
>
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