What should the UA's behavior be in the following scenario? It is not clear
whether UA should release all legs after the conversation between A and C has
ended? Or is it the responsibility of B (or A) to send a BYE?
A<---------UA-------------------->B (Stable Call)
<---Invite (hold)
---200--->
<---Refer (referto: C)
--202-->
---Invite ---------->C
<---180----
<---200----
A<------------------------------>C (Stable Call)
--NOTIFY (180)->B
--200---------------
--NOTIFY (200)->B
--200---------------
<---BYE---------- C
---200 ------------>
A<------------------------------> B (B is still onhold. At this point, should
it be the UA's responsibility to clean up A and B legs?)
Thanks
Vijay
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