[Serusers] SER Nokia CANCEL Problem

[samuel]

confirmed: after lookingup() CANCELs no more spirals around!!!!
no "race condition", no "failure"... simply my mistake, apologies :P

waiting for delayed CANCELs....

Samuel.

2007/2/16, samuel <samu60 at gmail.com>:
> everyday I learn something!!!! :D
> I has assumed CANCEL was "magically" processed by tm module.
> i'll lookup() CANCEL requests...
>
> Thank you,
> samuel.
>
> 2007/2/16, Greger V. Teigre <greger at teigre.com>:
> > My point was that such CANCEL must hit lookup. If not ser has no way of
> > knowing where to route it (as there are no Route headers).
> > Obviously t_relay will lookup the ruri using dns, resolve it to your ser
> > and then you get into a loop.
> > g-)
> >
> > samuel wrote:
> > > i'm pretty sure CANCEL hits t_relay and should be matched agains
> > > INVITE transaction...the only main routing difference between CANCEL
> > > and INVITE is NAT stuff and lookupXXXX which I think it does not
> > > affect this thread's topic, or did i miss something??
> > >
> > > Try to dial a number and immediately hang up...don't you see the Too
> > > Many Hops?
> > >
> > > Samuel.
> > >
> > > 2007/2/16, samuel <samu60 at gmail.com>:
> > >> 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
> > >> >  >
> > >> >  >
> > >> >  > ---------------------------------
> > >> >  > Don't be flakey. Get Yahoo! Mail for Mobile and
> > >> >  > always stay connected to friends.
> > >> >  >
> > >> >  >
> > >> >  >
> > >> >
> > >> ------------------------------------------------------------------------
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> > >> >  --
> > >> >  Klaus Darilion
> > >> >  nic.at
> > >> >
> > >> >
> > >> >
> > >> >
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