sr-users May 2012

sr-users@lists.kamailio.org

84 participants
140 discussions

vsf value in Record-Route header
by Robert R 24 May '12

24 May '12

Hi, * * * * We are facing a problem in our opener proxy receiving: *"Message too big" error.* Looking at the INVITE message sent by opener I notice the following in the record-route header: Record-Route: <sip:10.10.10.10;lr=on;ftag=5114A38-F80;vsf=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA-> Is this a valid value for vsd? Can we correct the value? Thanks, R

2 1

LinuxTag Today: Workshop build your own UC service with Kamailio and Jitsi
by Daniel-Constantin Mierla 24 May '12

24 May '12

Hello, short message to let you know that today at 12:00 I will do a practical workshop at LinuxTag in Berlin, about how to build your own unified communication service using kamailio as server and jitsi as client. If you visit the event, you can join the workshop in room New York 2.1, more details at: http://www.linuxtag.org/2012/en/program/project-workshops/details.html?no_c… Cheers, Daniel -- Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

1 0

allow_address failed initialize permissions
by Grégoire Vandendeurpel 23 May '12

23 May '12

Hi, I'm using kamailio 3.2.3 and I use permissions.so But when I reload Kamailio , error: failed to initialize the allow_address function 0(3815) ERROR: <core> [sr_module.c:932]: init_mod(): Error while initializing module permissions (/usr/lib/kamailio/modules_k/permissions.so) ERROR: error while initializing modules I don't use this function in kamailio.cfg.. just allow_trusted !!! Any idea why this error still appears? Best regards -- *Grégoire Vandendeurpel, * * * *IT Sector*

2 1

Detect and Correct wrong BYEs from proxy.
by Aft nix 23 May '12

23 May '12

Hi all, When record routing is enabled, that means, the proxy will act statefull mode, There has to be a mechanism for storing dialogue states. Like the location of the peers (Contact header filed of initial INVITE and 200 OK). And i suspect these states are stored in variables which has a lifespan same as the dialogue itself. I guess important variables (Contact header, local and remote tag etc) are exported to configuration file also. I'm aware of the dialogue module but i'm kind of convinced there has to be a simpler way for achieving my goal. Our Sip gateway provider sending a wrong BYE when PSTN side phone hangs up. Instead of using Contact Header of the initial INVITE, its sending BYEs with its IP as ruri. So the BYE message is looping between proxy and gateway instead of relayed to UAC. What i'm trying to achieve is following : route[RELAY] { if(is_method('BYE')) { <rewrite ruri with contact field of the initial invite> t_relay() } } -- -aft

1 0

Siremis 3.2.1 PDO Issue.
by Jeremy Ardley 23 May '12

23 May '12

Hi, I'm installing a brand-new Kamailio / Siremis system. I have an issue with Siremis failing to load PDO extensions. I have other systems working O.K. on Centos 5.x This is my configuration: Centos 6.2 php-5.3.3-3.el6_2.8.i686.rpm php-cli-5.3.3-3.el6_2.8.i686.rpm php-common-5.3.3-3.el6_2.8.i686.rpm php-mysql-5.3.3-3.el6_2.8.i686.rpm php-pdo-5.3.3-3.el6_2.8.i686.rpm Siremis 3.2.1 php -m [PHP Modules] bz2 calendar Core ctype curl date ereg exif fileinfo filter ftp gettext gmp hash iconv json libxml mysql mysqli openssl pcntl pcre PDO pdo_mysql pdo_sqlite Phar readline Reflection session shmop SimpleXML sockets SPL sqlite3 standard tokenizer xml zip zlib [Zend Modules] The area where it screws up is in util.php while I am setting up Siremis via web-page $status[5]['item'] = 'PDO extensions'; $pdos = array(); if (extension_loaded('pdo')) $pdos[] = "pdo"; if (extension_loaded('pdo_mysql')) $pdos[] = "pdo_mysql"; if (extension_loaded('pdo_mssql')) $pdos[] = "pdo_mssql"; if (extension_loaded('pdo_oci')) $pdos[] = "pdo_oci"; if (extension_loaded('pdo_pgsql')) $pdos[] = "pdo_pgsql"; $status[5]['value'] = implode(", ", $pdos); $status[5]['status'] = $pdos[0]=='pdo' ? 'OK' : 'FAIL - PDO extensions are required.'; I have commented out the test but it fails later saying the PDO extensions are not loaded. I note that the php modules report gives upper case but the test is lower case. (I understand the extension_loaded function is case insensitive) Any assistance appreciated.

1 0

Rtpproxy and UPDATEs
by Spencer Thomason 22 May '12

22 May '12

Hello, I'm working on a residential type application where we are using Kamailio for NAT traversal and Freeswitch as a voicemail and media server. When a UA that is behind NAT sends an INVITE to check voicemail everything works correctly until the user listens to the message. The sdp in the initial INVITE is rewritten and rtp proxy is working but Freeswitch (on a public IP) then sends an UPDATE to display the caller name of the person who left the message. The problem is that the UAC (in this case a Polycom phone) then responds with its private IP in the SDP. Is there a was to handle these UPDATEs? I'm using Kamailio 3.2.3 with a fairly stock config. This is an excerpt of the config file with the NAT handling route: # RTPProxy control route[NATMANAGE] { if (is_request()) { if(has_totag()) { if(check_route_param("nat=yes")) { setbflag(FLB_NATB); } } } if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB))) return; rtpproxy_manage(); if (is_request()) { if (!has_totag()) { add_rr_param(";nat=yes"); } } if (is_reply()) { if(isbflagset(FLB_NATB)) { fix_nated_contact(); } } return; } Thanks, Spencer

3 7

kamailio debug send messages
by Bruno Bresciani 22 May '12

22 May '12

Hi all, Why kamailio send to syslog only received SIP messages? I want see the messages that kamailio send to the UAs, it's possible? On TCP/TLS SIP messages there is a degub of buffer with the message that will be send, but a strange content has been shown... following the log: *tcp_send: buf= ^W^C^A^B0HFCÃ°g^W^R Â£MÃ<8f>C^U<8f>ÃQB^^,Â¼8ÃÃ^KZÃÃ|<97>Â¼zÃÃ¶<82>Ã¬Ã±Ã%sÃÃ¢Â³gÂ¿Ã SÂ©<97>}y<91>.<94>Ã°Â¯Ã´<8f>YÂ¿Â¥Âµf<9d>Ã«<8f><9d>* My kamailio is version 3.1.2 and run with global parameter 'debug=3' and send the syslog messages. Best Regards

7 15

SQLite datatypes
by Sebastian Ferguson 22 May '12

22 May '12

Hi: I'm trying to configure a Kamailio 3.2 server as a Redirect Server. A softswitch we own will send a SIP INVITE for some calls like this "INVITE sip:102@sipwise.telecentro.net.ar SIP/2.0". Once detected the B number "102" (in this example), the kamailio server will search in a sqlite3 database the transltated number the call should be directed. And then the server will send a 300 Redirect with the new request uri. Like this "SIP/2.0 300 Redirect /.../ Contact: sip:63793266@voip.telecentro.net.ar". And the softswitch will let the call go to the right number. The translation desition is made based on the geographic area where the A party is located. If the translated number is like 63793266 or 1557311721 the system is working ok. So the .cfg file seems to be OK. But if the translated number is like 8003330303 the variable holding the SQL return is set to "-486604289". I think this is related to data types. In the logs I can see that kamailio is defaulting datatypes to INT (I've tested varchar, int, and bigint in sqlite3), but I don't know how large could an integer be in Kamailio. According to sqlite3 documentation the number 8003330303 is not long enough and in fact the number is in the database. Has anybody seen something like this? Can anyone help? I can provide the hole script and database if this helps. Regards, Sebastian Ferguson

3 8

Free Tickets for LinuxTag 2012
by Carsten Bock 22 May '12

22 May '12

Hi, we've got some free tickets for LinuxTag 2012, we want to share. If you like to receive one, just send me a short reply. They are given away on a first come, first served basis. Meet us at Hall 7.2b, Booth 278! So long, Carsten P.S.: I'll give a presentation about Kamailio, IMS and Rich Communications on Wednesday, May 23rd, 12:45 - 13:30 (Room Berlin I). -- Carsten Bock CEO (Geschäftsführer) ng-voice GmbH Schomburgstr. 80 D-22767 Hamburg / Germany http://www.ng-voice.com mailto:carsten@ng-voice.com Mobile +49 179 2021244 Office +49 40 34927219 Fax +49 40 34927220 Sitz der Gesellschaft: Hamburg Registergericht: Amtsgericht Hamburg, HRB 120189 Geschäftsführer: Carsten Bock Ust-ID: DE279344284 Hier finden Sie unsere handelsrechtlichen Pflichtangaben: http://www.ng-voice.com/imprint/ -- Meet ng-voice at LinuxTag 2012 in Berlin - May 23rd - 26th, 2012. Save the date!

1 0

Priority of targets when using uac_redirect
by Stefan Prelle 21 May '12

21 May '12

Hi, I am using kamailio 3.2.2 and the uac_redirect module to evaluate the response from a SIP redirect server. My problem is, that kamailio does not pick the target with the highest priority, but the one with the lowest. In the 302 the kamailio is receiving, there is a contact header like this: Contact:<sip:+49xxx@a.a.a.a:5060;user=phone>;q=0.5,<sip: +49xxx@b.b.b.b:5060;user=phone>;q=0.25. In my failure_route block I basically use the following commands get_redirects("1"); t_relay(); The call then gets redirected to b.b.b.b whereas I would expect it to go to a.a.a.a When I change my script to get_redirects("*"); the call is forked to both IPs in parallel (starting with a.a.a.a) Is this a bug in uac_redirect or am I using it in a wrong way? Regards, Stefan

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sr-users May 2012