[Serusers] SER Nokia CANCEL Problem
Greger V. Teigre
greger at teigre.com
Fri Feb 16 13:53:04 CET 2007
It may be that you are not handling the CANCEL correctly. An early
CANCEL (no Route headers) will have to be routed as an INVITE.
g-)
Abdul Qadir wrote:
> Hi,
>
> >I think ser should remember canceled transactions and send CANCEL in
> >case of delayed provisional replies.
>
> At present I don't think its working like this, As soon as CANCEL hit
> SER an immediate too many hops is returned to sender and call
> continues....resulting in ghost call, where A party has dropped after
> sending cancel and B still carries on as no cancel was sent to B.
>
> Best Regards,
> Abdul Qadir
>
> */Klaus Darilion <klaus.mailinglists at pernau.at>/* wrote:
>
> Abdul Qadir wrote:
> > Hi ,
> >
> > I tried to call from one nokia sip (E61 and other models )phone
> to another nokia sip phone. The call works fine. The problem comes
> only when I call from Phone A to Phone B and then immediately
> cancel the call(from Phone A). The Phone A will hangup the call as
> it sent CANCEL but the SER will ignore this CANCEL and still send
> INVITE to Phone B resulting in a ghost call situation.
> >
>
> Hi!
>
> I think ser should remember canceled transactions and send CANCEL in
> case of delayed provisional replies.
>
> regards
> klasu
>
> > I tried to capture a log of message and found that Phone A
> "CANCEL" message is received on SER even before any provisional
> response from Phone B. Therefor SER doesnot relay this CANCEL
> request to Phone B. I even checked RFC which clearly says that UAC
> should not send CANCEL untill it receives any provisional
> response. I talked to Nokia expert and they said the 100 Trying
> message from your server is considered as provisional response,
> therefor behaviour of client is absolutely correct.
> >
> > Is there any way I can stop 100 Trying message and still run
> statefull SER, so that I can verify what nokia said. Any ideas
> suggestions are welcome.
> >
> > Thanking you all in advance.
> >
> > Best Regards,
> > Abdul Qadir
> >
> >
> > ---------------------------------
> > Don't be flakey. Get Yahoo! Mail for Mobile and
> > always stay connected to friends.
> >
> >
> >
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> >
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>
> --
> Klaus Darilion
> nic.at
>
>
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