It is known problem with SPA-2000 - it violates RFC by inserting different branch parameter into the CANCEL compared to the same parameter in INVITE, which results in SER being unable to match CANCEL to INVITE. We have notified Siura support staff about this and are waiting for resolution.
-Maxim
Mike wrote:
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@pernau.at To: abhati abhati@primus-direct.com Cc: serusers@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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