[Serusers] SER Nokia CANCEL Problem

Jiri Kuthan jiri at iptel.org
Fri Feb 16 14:37:09 CET 2007


I think that's yet another issue (which then reinstatiates itself in some other issue) --
you must have a loop in your script which you have to fix first. Just ngrep loopback interface
to verify this is the cause of the problem.

-jiri

At 13:34 16/02/2007, 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.
>> 
>> 
>> ------------------------------------------------------------------------
>> 
>> _______________________________________________
>> Serusers mailing list
>> Serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>
>
>-- 
>Klaus Darilion
>nic.at
>
>
>
><http://answers.yahoo.com/dir/index;_ylc=X3oDMTFvbGNhMGE3BF9TAzM5NjU0NTEwOARfcwMzOTY1NDUxMDMEc2VjA21haWxfdGFnbGluZQRzbGsDbWFpbF90YWcx?link=ask&sid=396545367>Food fight? Enjoy some healthy debate
>in the <http://answers.yahoo.com/dir/index;_ylc=X3oDMTFvbGNhMGE3BF9TAzM5NjU0NTEwOARfcwMzOTY1NDUxMDMEc2VjA21haWxfdGFnbGluZQRzbGsDbWFpbF90YWcx?link=ask&sid=396545367>Yahoo! Answers Food & Drink Q&A. 
>_______________________________________________
>Serusers mailing list
>Serusers at lists.iptel.org
>http://lists.iptel.org/mailman/listinfo/serusers



--
Jiri Kuthan            http://iptel.org/~jiri/




More information about the sr-users mailing list