[Serusers] SER Nokia CANCEL Problem

samuel samu60 at gmail.com
Fri Feb 16 12:55:54 UTC 2007


mmm

i'll take a look at the config...

maybe i just had a wrong config after all...if that's the case,
apologies for the false "race condition" :P
samuel.

2007/2/16, Greger V. Teigre <greger at teigre.com>:
>
>  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
>  >
>  >
>  > ---------------------------------
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>  --
>  Klaus Darilion
>  nic.at
>
>
>
>
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