[Serusers] Cancel call Problem

Mike voipguy at spam.turbolink.net
Mon Feb 9 20:50:48 CET 2004


I see the exact same problem when making calls from a Sipura SPA-2000.
The problem does not occur when calling from a Cisco ATA-186.

I've tried comparing the cancel messages between the 2 devices, but only
found 1 difference.  The ATA makes the INVITE and the cancel with
user=phone appended, and the sipura does not.  I'm not sure why that would
make a difference, though, as long as the CANCEL matches the INVITE...

- Mike

On Mon, 9 Feb 2004, Klaus Darilion wrote:

> I can't see any problem in the config file. Which clients do you use?
>
> Put log(1,"...."); messages into your config and watch the logging
> messages in /var/log/messages during the CANCEL processing to find out
> where the CANCEL request is beeing lost.
>
> Klaus
>
> Kapil Dhawan wrote:
> > o its not happening...when first phone cancels the call....that CANCEL is not
> > forwarded to callee phone
> >
> > Regards
> >
> > Dhawan K
> >
> > ---------- Original Message -----------
> > From: Klaus Darilion <klaus.mailinglists at pernau.at>
> > To: abhati <abhati at primus-direct.com>
> > Cc: serusers at lists.iptel.org
> > Sent: Mon, 09 Feb 2004 16:22:34 +0100
> > Subject: Re: [Serusers] Cancel call Problem
> >
> >
> >>What do mean by "gets hanged"?
> >>Watch the SIP call flow using ethereal: Are the CANCEL requests that
> >>arive at the proxy forwarded to the other SIP phone?
> >>
> >>klaus
> >>
> >>abhati wrote:
> >>
> >>>Hi All
> >>>
> >>>My problem is...i have got two phones set 111 and 222. if i make call
> >
> > from
> >
> >>>111 and don't pick up 222 and cancel the call, this all is fine. but my
> >
> > phone
> >
> >>>gets hanged...both 111 and 222....what shud be done to properly handle
> >
> > cancel
> >
> >>>requests.
> >>>
> >>>i am attaching my ser.cfg file.
> >>>
> >>>#
> >>># $Id: ser.cfg,v 1.21.4.1 2003/11/10 15:35:15 andrei Exp $
> >>>#
> >>># simple quick-start config script
> >>>#
> >>>
> >>># ----------- global configuration parameters ------------------------
> >>>
> >>>#debug=3         # debug level (cmd line: -dddddddddd)
> >>>#fork=yes
> >>>#log_stderror=no	# (cmd line: -E)
> >>>
> >>>/* Uncomment these lines to enter debugging mode
> >>>debug=7
> >>>fork=no
> >>>log_stderror=yes
> >>>*/
> >>>
> >>>check_via=no	# (cmd. line: -v)
> >>>dns=no           # (cmd. line: -r)
> >>>rev_dns=no      # (cmd. line: -R)
> >>>#port=5060
> >>>#children=4
> >>>fifo="/tmp/ser_fifo"
> >>>
> >>># ------------------ module loading ----------------------------------
> >>>
> >>># Uncomment this if you want to use SQL database
> >>>loadmodule "/usr/lib/ser/modules/mysql.so"
> >>>
> >>>loadmodule "/usr/local/lib/ser/modules/sl.so"
> >>>loadmodule "/usr/local/lib/ser/modules/tm.so"
> >>>loadmodule "/usr/local/lib/ser/modules/rr.so"
> >>>loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
> >>>loadmodule "/usr/local/lib/ser/modules/usrloc.so"
> >>>loadmodule "/usr/local/lib/ser/modules/registrar.so"
> >>>
> >>># Uncomment this if you want digest authentication
> >>># mysql.so must be loaded !
> >>>loadmodule "/usr/local/lib/ser/modules/auth.so"
> >>>loadmodule "/usr/local/lib/ser/modules/auth_db.so"
> >>>
> >>>loadmodule "/usr/local/lib/ser/modules/domain.so"
> >>>loadmodule "/usr/local/lib/ser/modules/call.so"
> >>>
> >>>modparam("domain", "db_url", "sql://root:root@localhost/ser")
> >>>modparam("domain", "db_mode", 1)   # Use chaching
> >>>modparam("domain", "domain_table", "domain")
> >>>modparam("domain", "domain_col", "domain")
> >>>
> >>>modparam("tm", "fr_inv_timer", 30 )
> >>>modparam("registrar", "default_expires", 60)
> >>># ----------------- setting module-specific parameters ---------------
> >>>
> >>># -- usrloc params --
> >>>
> >>>#modparam("usrloc", "db_mode",   0)
> >>>
> >>># Uncomment this if you want to use SQL database
> >>># for persistent storage and comment the previous line
> >>>modparam("usrloc", "db_mode", 2)
> >>>
> >>># -- auth params --
> >>># Uncomment if you are using auth module
> >>>#
> >>>modparam("auth_db", "calculate_ha1", yes)
> >>>#
> >>># If you set "calculate_ha1" parameter to yes (which true in this
> >
> > config),
> >
> >>># uncomment also the following parameter)
> >>>#
> >>>modparam("auth_db", "password_column", "password")
> >>>
> >>>
> >>># -- rr params --
> >>># add value to ;lr param to make some broken UAs happy
> >>>modparam("rr", "enable_full_lr", 1)
> >>>
> >>># -------------------------  request routing logic -------------------
> >>>
> >>># main routing logic
> >>>
> >>>route{
> >>>
> >>>	# initial sanity checks -- messages with
> >>>	# max_forwards==0, or excessively long requests
> >>>	if (!mf_process_maxfwd_header("10")) {
> >>>		sl_send_reply("483","Too Many Hops");
> >>>		break;
> >>>	};
> >>>	if ( msg:len > max_len ) {
> >>>		sl_send_reply("513", "Message too big");
> >>>		break;
> >>>	};
> >>>
> >>>	# we record-route all messages -- to make sure that
> >>>	# subsequent messages will go through our proxy; that's
> >>>	# particularly good if upstream and downstream entities
> >>>	# use different transport protocol
> >>>	record_route();
> >>>	# loose-route processing
> >>>	if (loose_route()) {
> >>>		t_relay();
> >>>		break;
> >>>	};
> >>>
> >>>	# if the request is for other domain use UsrLoc
> >>>	# (in case, it does not work, use the following command
> >>>	# with proper names and addresses in it)
> >>>	if (is_from_local()) {
> >>>
> >>>		if (method=="REGISTER") {
> >>>
> >>># Uncomment this if you want to use digest authentication
> >>>			if (!www_authorize("", "subscriber")) {
> >>>				www_challenge("", "0");
> >>>				break;
> >>>			};
> >>>			save("location");
> >>>			break;
> >>>		};
> >>>
> >>>		# native SIP destinations are handled using our USRLOC DB
> >>>
> >>>
> >>>		if (method=="INVITE") {
> >>>		if(call()){	//written one module for few things works fine
> >>>			if (!lookup("location")) {
> >>>			sl_send_reply("404", "Not Found");
> >>>			break;
> >>>		};
> >>>		};
> >>>		};
> >>>
> >>>	};
> >>>	# forward to current uri now; use stateful forwarding; that
> >>>	# works reliably even if we forward from TCP to UDP
> >>>	if (!t_relay()) {
> >>>		sl_reply_error();
> >>>	};
> >>>}




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