sr-users August 2005

sr-users@lists.kamailio.org

220 participants
558 discussions

[Serusers] Serial Forking with IVR message

by Ramin Nikaeen

Hi Everyone, I am trying to implement Serial Forking (Find Me Follow Me) where an IVR message is played out before call forwarding (t-relaying of calls) is initiated. My implementation is as follows: 1. Main dialed number is tried. 2. When the callee does not pick up the call, a timeout occurs 3. Upon timeout, I want to forward the call to an IVR to play the audio message: "The party you are trying to reach is not answering. You will be forwarded to their secondary numbers. please wait." 4. After the message is played out, the call is forwarded to the callee's first FindMeFollowMe number 5. If there is no answer at the forwarded number, call is forwarded to the callee's next FindMeFollowMe number 6. if there is no answer at the callee's last FindMeFollowMe number, the call is forwarded to the callee's voicemail The problem I am having is that at step 4, after the message is played out by the asterisk IVR successfully, a BYE message is sent by asterisk IVR to SER. In SER, I catch the BYE SIP message and then try to execute a "t_relay" to forward the call to the callee's first FindMeFollowMe number. But, t_relay generates this error: 12(20843) ERROR: t_newtran: transaction already in process 0xb5468b38^M 12(20843) route[2]: t_relay failed^M 12(20843) route[2]: sl_reply_error executed^M 12(20843) ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (1/SL)^M I read the following section from "iptel.org SIP Express Router v0.11.0 -- Admin's Guide" (http://www.iptel.org/ser/doc/seruser/seruser.html#AEN1078): 3.3.6. I receive "ERROR: t_newtran: transaction already in process" in my logs. That looks like an erroneous use of tm module in script. tm can handle only one transaction per request. If you attempt to instantiate a transaction multiple times, ser will complain. Anytime any of t_newtran, t_relay or t_relay_to_udp actions is encountered, tm attempts to instantiate a transaction. Doing so twice fails. Make sure that any of this commands is called only once during script execution. And my understanding was that because the first call that I had forwarded to the Asterisk IVR at step 3 had not been terminated, and therefore its associated transaction still existed, SER did not allow the creation of a new transaction through the invocation of t_relay. And Asterisk continuously retransmitted the BYE message to SER. My question is : How can terminate the connection that was set up to Asterisk IVR at step 3 successfully before Initiating the first call forward at step 4? I tried sending SIP 200 (OK) responses from SER back to Asterisk IVR, in response to the BYE requests SER receives from it, to force Asterisk IVR to terminate the connection but it doesn't seem to work?! I sent these responses back using sl_send_reply and t_reply. I tried t_release() instead of sending 200 (OK) SIP response back to Asterisk but that didn't terminate the call either! Can anyone suggest any solutions? Thanks Ramin rnikaeen(a)goldline.net

19 years, 6 months

[Serusers] Re: Hi

by Lazy.charles

19 years, 6 months

[Users] TCP socket problem

by Klaus Darilion

Hi! I've configured openser to listen on a ceratin IP address. listen=83.xxx.32.83:5060 Nevertheless, if t_relay tries to sned via TCP, openser opens the TCP connection from the default interface. I also tried force_send_socket(tcp:83.xxx.32.83:5060); with the same results. Are there any known problems? IMO openser should always use the IP address on which it listens. regards klaus

19 years, 6 months

[Serusers] Hunting Group

by Hernando Maisano

Hello, I need to form a group of call, or rotating Lines...... Somebody can help me? Thanks Nando

19 years, 6 months

[Serusers] NAT Problem

by Kamran Ahmad

hello i am using following http://www.voip-info.org/tiki-index.php?page=SER+example+NAThelper when i use serctl ul show it is showing me that that my user Agent is registered but My SJphone is still showing not registered. SER is on public IP and SJPhone is on private IP what could be the reason same configuration was working in my previous installation of ser on other mechine. ANY COMMENTS #my ser.cfg # # $Id: ser.cfg,v 1.21 2003/06/04 13:47:36 jiri 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" alias=mydomain.dyndns.org # ------------------ module loading ---------------------------------- loadmodule "/usr/local/lib/ser/modules/nathelper.so" loadmodule "/usr/local/lib/ser/modules/textops.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" # ----------------- setting module-specific parameters --------------- # -- usrloc params -- modparam("usrloc", "db_mode", 0) # -- 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; }; # 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 (uri==myself) { if (method=="REGISTER") { save("location"); break; }; # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { sl_send_reply("404", "Not Found"); break; }; }; #inserted by klaus if (method=="INVITE") { record_route(); force_rtp_proxy(); /* set up reply processing */ t_on_reply("1"); }; # 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(); }; } #inserted by klaus # all incoming replies for t_onrepli-ed transactions enter here onreply_route[1] { if (status=~"[12][0-9][0-9]") force_rtp_proxy(); } __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

19 years, 6 months

[Serusers] adding new user : prompting for mysql password ? no idean plz help me ..

by Kumar Subramanian

i would like to add a new user in the server using mysql .. i dont have much about mysql, when i give the command serctl add <username> <passwd> <email> its returns to mysql passward> buti havent give any password in the database .. Is ther any default password already exist ? if so whatz that ?

19 years, 6 months

[Users] Using schemes with AVPops

by Martin Kjeldsen

Hi I'm in need of some help using the schemes with AVPops! What I would like to do, is extract a value from the coloum:username in table:aliases, matched by a specific user. First of all I'm uncertain of how to create such a scheme and match it with a specific user, and second of all, can I push this in to the header as a P-Asserted-Identity? And I'm not mistaken, when I under the impression thatI dont need to create a AVP table for this, am I? Thank you in advance Kind regards Martin

19 years, 6 months

[Serusers] User

by Sebastian Kühner

Hello, To get the username of the caller, I use the following code in my shell scripts: POS1=`expr index "$SIP_HF_FROM" : + 1`; LENGTH=`expr index "$SIP_HF_FROM" @ - $POS1`; USER=`expr substr "$SIP_HF_FROM" $POS1 $LENGTH`; Is there any other way to do that? I need to make a query with the username of the CALLING user... Thanks! Sebastian

19 years, 6 months

[Serusers] "Relay not allowed" error number?

by Federico Giannici

What is the correct error code number for the error "Relay not allowed", that is a request that isn't either FROM neither TO an user of ours? I'm undecided between "403 Forbidden" and "502 Bad Gateway". What do you think? Thanks. -- ___________________________________________________ __ |- giannici(a)neomedia.it |ederico Giannici http://www.neomedia.it ___________________________________________________

19 years, 6 months

[serusers] Message Body

by michael p

hi, there are some variables to get fields from SIP header with SER like SIP_ORUI to get the "TO" field or SIP_HF_FROM to get the "FROM" field but i'm looking for a mean to get the body of the SIP message... do someone know how can i do it? best regards, Michael

19 years, 6 months

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sr-users August 2005