Hello again,

Please see the attached wireshark trace, I tried for a sipgrep trace but couldn't somehow. I hope this will get me some clue on what I'm doing wrong.

This is a setup with Kamailio in front of Asterisk Servers. Kamailio is multihomed and MS are on private IPs, all the calls are routed to MSs and then comeback for further dial-outs.

Please see the Continuous CANCEL requests which aren't terminating the call.

Thanks,

Sammy.

On Mon, Nov 28, 2011 at 4:41 PM, Sammy Govind <govoiper@gmail.com> wrote:

Thanks for your reply I will attach the wireshark traces as soon as I get to my workstation.

BR,

Sammy.

On Mon, Nov 28, 2011 at 3:33 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

send the ngrep trace of such call, from the initial INVITE, you can use:

ngrep -d any -qt -W byline port 5060

The sip trace will help to see what is wrong with that CANCEL.

Cheers,
Daniel

On 11/28/11 7:19 AM, Sammy Govind wrote:

Anyone please help.

On Sat, Nov 26, 2011 at 10:39 PM, Sammy Govind <govoiper@gmail.com> wrote:

Hello list,

I'm using Kamailio 3.1.5 in front of asterisk servers. Kamailio handles all the SIP registrations. Calls from SIP phones are forwarded to asterisks and then dialled out to Kamailio.

root@SBCserver:~# kamailio -V

version: kamailio 3.1.5 (x86_64/linux) 76fff5

flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES

ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, PKG_SIZE 4MB

poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.

id: 76fff5

compiled on 08:21:33 Oct 27 2011 with gcc 4.6.1

root@SBCserver:~#

Problem: 

When call is initiated from a softphone and is in ringing phase, CANCEL just don't work. I've done some initial debugging and the following piece of code in main route is failing.

# CANCEL processing

if (is_method("CANCEL"))

{

     xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CAPTURED IN MAIN---\n");

     if (t_check_trans()){

        t_relay();

        xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CHECK TRANS TRUE---\n");

     }

     xlog("L_NOTICE","$rm from $fu (IP:$si:$sp) ---CHECK TRANS FALSE---\n");

     exit;

}

Also the CANCEL fails the has_totag() condition !

The same Call CANCEL scenario works fine for any client on Public IP !

Hope to get some pointers for the solution.

Regards,

Sammy.

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-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda

_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda