The call scenario looks like
[EMAIL PROTECTED] --INV-----> [EMAIL PROTECTED]
<---200--- refresher=uas
---ACK--->
<--re-INV's r-URI '[EMAIL PROTECTED]' -----
should have been
<--re-INV's r-URI '[EMAIL PROTECTED]' -----
---200-INV--->
< ---BYE---
---200-BYE--->
In the re-INVITE the r-URI should have been [EMAIL PROTECTED] &
refresher=uac, whereas [EMAIL PROTECTED] been used, this might create
the problem...
Thanks & Regards,
Nataraju A.B.
-----Original Message-----
From: Mandeep Ahuja [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 30, 2006 9:44 PM
To: Nataraju A B; [email protected]
Subject: Re: [Sip-implementors] Session Refresher problems [Session
Timers]
Hi,
thanks for the comments
I will try to explain the issue more clearly,
The first 200Ok that comes from the UAS says "refresher = uas",
Now the re-Invite comes in saying "refresher=uac", so when the UAC Ok's
it there is no response (no ack from the proxy) hence the a BYE is sent
. I have attached the trace (ommited acks). Can you please look at the
trace and tell me if the behaviour is correct. Also, the UAS is the PSTN
line.
[ABN] The ACK for 200OK would be sent by UAC not the proxy.
Nataraju A B wrote:
>Comments inline...
>
>Thanks & Regards,
>Nataraju A.B.
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] On Behalf Of Mandeep
>Ahuja
>Sent: Friday, May 19, 2006 10:41 PM
>To: [email protected]
>Subject: [Sip-implementors] Session Refresher problems [Session Timers]
>
>Hi,
>The big picture is - calls are not lasting longer than 5 minutes.
>
>This is what is happening,
>
>My Sip Software X and Proxy (deltathree) both support Session Timers.
>The Proxy's first 200 OK (to my Initial Invite) contains Refresher =
>"uas" with Session-Expires 600.
>After 5 minutes (half of 600 which is correct) the Proxy sends me a
>re-invite ( a session refresh invite) which contains
Session-Expire:3600
>
>and Refresher = "uac" (Alert: Earlier in the 200Ok it was "uas") and
now
>
>when I respond with the 200 OK the Proxy does not respond hence
>connection dies.
>
>Is the Proxy Behaviour Correct?
>What am I supposed to do it from my end
>
>[ABN] the proxy will not generate the re-INVITE to refresh the timer.
>the session-refresh requests will always be generated by UAC/UAS and
>will be useful for the proxies.
>
>If you can brief your setup in detail one can help you better OR if you
>can send the message trace would be helpful to solve your problem...
>
>[ABN] The refresher role (refresher=uac in re-INVITE) mentioned in your
>scenario looks to be fine...
>
>looking forward towards a positive reply
>
>thanks
>Mandeep Ahuja
>
>p.s I have the ethereal traces if required.
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>
>
>
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