_____
From: Ravi Kumar [mailto:[email protected]]
Sent: Friday, October 15, 2010 7:27 PM
To: ''[email protected]'
Subject: Regarding Rfc 4028
Hi All,
I have call flow Like below.
UE UE
| |
--------Inv----------> (Session Expire: 1800)
| |
<----------183-----
| |
------update------->(Session Expire: 1600)
| |
<-------200-update (Session Expire: 1600;refresher=uas)
| |
<-------200-Inv--- (Session Expire: 1800;refresher=uas)
| |
Doubt:
1. When UAC is negotiating session timer value with INVITE
request, and session timer negotiation is not completed then UAC should not
start negotiation with UPDATE request. Because this behavior not defined by
RFC-4028. How does other implementation handles this at UAS side.
And UAC should send UPDATE request with Session Expire header
when INVITE negotiation is not completed.
2. Can UPDATE request start Session timer negotiation, because
it is used for session timer refresher?
3. What does RFC-4028 last response mean?
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