Hi,
I have a query regarding the Session Timer. Please find the call flow below
and let me know what should be he UAC and UAS Behavior.
INVITE( Session-Expires: 120;refresher=uas) |
|--------------------------------------------------------------------------------->|
| 100 Trying
|
|<---------------------------------------------------------------------------------|
| 180
|
|<---------------------------------------------------------------------------------|
| 200 (Session-Expires: 1800) |
|<---------------------------------------------------------------------------------|
| ACK
|
|-------------------------------------------------------------------------------->
|
.Here though the RFC says The UAS MUST set the value of the refresher
parameter in theSession-Expires header field in the 2xx response. 200Ok is
received with our refresher parameter but INVITE has set the refresher as uas.
Can any one suggest what should the UAC should perform here -
1. Set the Refresher to Local i.e uac and perform the Refreshes.
2. Keep the refresher as uas itself and do not perform the refreshes and send
the BYE after session expiry.
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