[SR-Users] CANCEL not matching INVITES !

[Sammy Govind]

Anyone please help.

On Sat, Nov 26, 2011 at 10:39 PM, Sammy Govind <govoiper at 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 at 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 at 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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