[Serusers] a question about "cancel" in forwarding scenario
zhangshuai
zhangshuai at goldentek.biz
Tue Feb 14 03:49:27 CET 2006
Dear Greger V. Teigre,
Thanks for your quick reply.
I have read the sergettingstarted05.pdf (Based upon SER version 0.9.3) and tested the onr.cfg in ser-0.9.3.GettingStarted.1.3.tar.gz/ser-0.9.3/examples many times. SER sent out "408" to caller immediately after received "486" from ua3. I don't know how does ser's failure route deal with this kind of "cancel" when the invite has been forwarded. Any ideas will help me a lot. Thanks!
Here is the onr.cfg:
# ------------------ module loading ----------------------------------
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
# ----------------- setting module-specific parameters ---------------
# -- tm params --
# set time for which ser will be waiting for a final response;
# fr_inv_timer sets value for INVITE transactions, fr_timer
# for all others
modparam("tm", "fr_inv_timer", 15 )
modparam("tm", "fr_timer", 10 )
# ------------------------- request routing logic -------------------
# main routing logic
route{
# for testing purposes, simply okay all REGISTERs
if (method=="REGISTER") {
log("REGISTER");
sl_send_reply("200", "ok");
break;
};
# try these two destinations first in parallel; the second
# destination is targeted to sink port -- that will make ser
# wait until timer hits
seturi("sip:200 at 218.97.252.35:5060");
#append_branch("sip:300 at 218.97.252.36:5060");
# if we do not get a positive reply, continue at reply_route[1]
t_on_failure("1");
# forward the request to all destinations in destination set now
t_relay();
}
failure_route[1] {
#when caller cancel, terminate the call
if (t_check_status("487")) {
t_reply("487", "Request Terminated");
break;
};
# forwarding failed -- try again at another destination
append_branch("sip:300 at 218.97.252.44:5060");
log(1,"first redirection\n");
# if this alternative destination fails too, proceed to reply_route[2]
#t_on_failure("2");
t_relay();
}
Thanks in advance.
Have a good day!
Shuai
>The internal SER timer hits and the request times out (the request is not
>terminated).
>See SER-GettingStarted doc at ONsip.org for a full example of call features
>like forwarding.
>g-)
>----- Original Message -----
>From: "zhangshuai" <zhangshuai at goldentek.biz>
>To: "serusers" <serusers at lists.iptel.org>
>Cc: "wuyuan" <wuyuan at goldentek.biz>
>Sent: Friday, February 10, 2006 11:18 AM
>Subject: [Serusers] a question about "cancel" in forwarding scenario
>
>
>> Dear All,
>>
>>
>> I want to make use of avpops module to achieve forward on-no-reply. When
>> ua1 calls ua2 and ua2 is off-line, or busy, or doesn't answer the phone,
>> the invite should be forwarded to ua3 and ua3 begins ringing.
>>
>> In my tests, first, ua1 sends "cancel" when ua2 is ringing. Ua1 receives
>> "487 Request Terminated" from SER. Second, ua1 sends "cancel" when ua3 is
>> ringing. So, theoretically, ua1 should receive "487 Request Terminated"
>> after "200 canceling" from SER, right? But, ua1 received "408 Request
>> Timeout" instead. So strange. How come?
>>
>> I think something is wrong with my ser.cfg. Could anyone help me about
>> this? Thanks in advance.
>>
>> Here is my ser.cfg:
>>
>> # ------------------ module loading ----------------------------------
>>
>> 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"
>> loadmodule "/usr/local/lib/ser/modules/textops.so"
>> loadmodule "/usr/local/lib/ser/modules/avp.so"
>> loadmodule "/usr/local/lib/ser/modules/acc.so"
>> loadmodule "/usr/local/lib/ser/modules/mysql.so"
>> loadmodule "/usr/local/lib/ser/modules/dbtext.so"
>> loadmodule "/usr/local/lib/ser/modules/avpops.so"
>> #loadmodule "/usr/local/lib/ser/modules/postgres.so"
>> #loadmodule "/usr/local/lib/ser/modules/flatstore.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/auth_radius.so"
>> loadmodule "/usr/local/lib/ser/modules/group_radius.so"
>> loadmodule "/usr/local/lib/ser/modules/uri_radius.so"
>> # ----------------- 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", 1)
>>
>> # -- 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)
>> modparam("tm", "fr_timer", 10 )
>> modparam("tm", "fr_inv_timer", 20)
>> modparam("tm", "noisy_ctimer", 1)
>>
>> modparam("auth_radius|uri_radius|group_radius", "radius_config",
>> "/usr/local/etc/radiusclient-ng/radiusclient.conf")
>>
>> modparam("avpops","avp_url","mysql://ser:heslo@localhost/ser")
>> modparam("avpops","avp_table","usr_preferences")
>> # ------------------------- 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 >= 2048 ) {
>> sl_send_reply("513", "Message too big");
>> break;
>> };
>>
>> if (!method=="REGISTER") record_route();
>>
>> if (loose_route()) {
>> t_relay();
>> break;
>> };
>>
>> if (method=="INVITE") {
>> lookup("location");
>> #if (!lookup("location")) {
>> # sl_send_reply("404", "Not Found");
>> # break;
>> #};
>> }
>>
>> if (method=="REGISTER") {
>> log("REGISTER\n");
>> if (!radius_www_authorize("localhost.localdomain")) {
>> www_challenge("localhost.localdomain", "0");
>> break;
>> };
>> save("location");
>> break;
>> };
>>
>> if (method=="INVITE") {
>> if (!radius_proxy_authorize("localhost.localdomain")) {
>> proxy_challenge("localhost.localdomain", "1");
>> break;
>> };
>> }
>>
>> # if we do not get a positive reply, continue at failure_route[1]
>> t_on_failure("1");
>> # forward the request to all destinations in destination set now
>> t_relay();
>>
>> #if (!t_relay()) {
>> # sl_reply_error();
>> #};
>> }
>>
>> failure_route[1] {
>>
>> #when caller cancel, terminate the call
>> if (t_check_status("487")) {
>> t_reply("487", "Request Terminated");
>> break;
>> };
>>
>> if ( ( avp_db_load("$ruri","s:redirect_on_failure") &&
>> avp_check("redirect_on_failure","eq/i:1"))) {
>> # User need to forward
>> log(1, "User wants redirection.\n");
>> if ( ( avp_db_load("$ruri","s:redirectnumber") &&
>> !avp_check("redirectnumber","re/^$"))) {
>> log(1,"first redirect\n");
>> #avp_print();
>> attr2uri("redirect number");
>> lookup("location");
>> append_branch();
>> #t_on_failure("2");
>> t_relay();
>> }
>> else {
>> t_reply("408", "TimeOut");
>> break;
>> };
>> }
>> else {
>> t_reply("404", "Not Found");
>> break;
>> };
>> }
>>
>>
>> _______________________________________________
>> Serusers mailing list
>> serusers at lists.iptel.org
>> http://lists.iptel.org/mailman/listinfo/serusers
>>
>
>
= = = = = = = = = = = = = = = = = = = =
More information about the sr-users
mailing list