sr-users May 2011

sr-users@lists.kamailio.org

78 participants
130 discussions

SIP Trunk Usage Monitoring
by JR Richardson 06 May '11

06 May '11

Hi All, I recently interconnected to an upstream carrier using Kamailio 3.0, working fine. We have configure 2 SIP trunks for failover/redundnacy. I'm using dispatcher module to round robin calls to the carrier. I wanted to monitor trunk usage between us. I was reading in the devel 3.2 about some native monitoring in the new dispatcher module without the need to load the dialog module. Can I use the new module in version 3.0 or will I need to upgrade the core to 3.2? I typically will not use dev software in production, so can anyone suggest a light method of trunk usage monitoring for ver 3.0? I'm not opposed to using the dialog module, I'm just not familiar with it and not sure the best way to integrate it for usage tracking. I don't need to do billing or capture cdr's on the SIP-Routers so the simpler the better. Any guidance will be much appreciated. Thanks. JR -- JR Richardson Engineering for the Masses

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t_check_status documentation
by Eric Hiller 06 May '11

06 May '11

One thing that really threw me this morning was the lack of t_check_status in the modules documentation. Apparently it is still there and works, just completely undocumented. Once I realized it was still there I just went back to the 1.5 docs and was good, but just thought I should point this out. -Eric

2 1

db_text issue
by Eric Hiller 06 May '11

06 May '11

I would like to use dbtext to store a list of whitelisted gateways, but each time I load it I get a core segmentation fault. Any ideas? Here is my gateways db file: key_name(str) key_type(int) value_type(int) key_value(str) gwip:1:0:a gwip:1:0:b gwip:1:0:c gwcount:0:1:3 And in my config: modparam("htable","htable","gateways=>size=4;dbtable=gateways;") modparam("htable","db_url","text:///usr/local/etc/kamailio") while( $var(i) < $sht(gateways=>gwcount) ){ if( $sht(gateways=>gwip[$var(i)]) == $si ){ setflag(gateway); xlog("ISFROMGW: request from IP $si matches $sht(gateways=>gwip[$var(i)]) ...\n"); } } Do you see anything wrong with this setup? -Eric

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free tickets linuxtag
by Henning Westerholt 06 May '11

06 May '11

Hello, we've few free 4 day tickets for the LinuxTag next week in Berlin to share. If you like to receive one, just send me a short reply. More informations about our booth: http://www.kamailio.org/w/2011/04/kamailio-booth-at-linuxtag-2011/ Best regards, Henning

1 0

Force RTPProxy
by Simone Felici 06 May '11

06 May '11

Hello to all! I need a little help with our ser installation (ser-2.0.0-rc1). Due some network restrictions, we need to force every call to pass trought rtpproxy. Could someone point me to the right place where to force it? Please an example based on our config would be really helpful, but in two scenarios: 1. ALL CALLS trought rtpproxy 2. ONLY CALLS from a given network trought rtpproxy We are in doubt on what choose between the two solutions. Having both examples could me help to implement the needs faster :) Thank's a lot for your help! Simon

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Calling t_on_reply in branch_route doesn't work in Kamailio 3.1 - did work in Kamailio 1.5
by Sebastian Damm 05 May '11

05 May '11

Hi, I'm currently migrating a Kamailio 1.5 installation to Kamailio 3.1.3, and I got all config changes merged, except this one: branch_route[1] { if ((isbflagset(4)) && (!isflagset(7))) { fix_nated_sdp("1"); if (has_body()) { force_rtp_proxy("R"); } else { setflag(5); } t_on_reply("2"); } } In Kamailio 1.5 this worked without problems. In Kamailio 3.1 I get the following error (line 1627 is the line with t_on_reply on it): hostname:~# /usr/sbin/kamailio -c -f /etc/kamailio/proxy/kamailio.cfg loading modules under /urs/lib/kamailio/modules/:/usr/lib/kamailio/modules_k:/usr/lib/kamailio/modules_s/ 0(13670) : <core> [cfg.y:3412]: parse error in config file /etc/kamailio/proxy/kamailio.cfg, line 1627, column 17: Command cannot be used in the block ERROR: bad config file (1 errors) hostname:~# In the Kamailio 1.5 documentation it was stated for every t_on_* function, where it could be called. For t_on_reply it said: This function can be used from REQUEST_ROUTE, BRANCH_ROUTE, ONREPLY_ROUTE and FAILURE_ROUTE. In the Kamailio 3.1 documentation those lines are missing. But I don't really see a reason, why t_on_reply shouldn't be called from branch route. We need it for every branch to possibly have different onreply_routes. Am I missing something? Thanks in advance for any hints. Best regards, Sebastian

3 6

Force RTPProxy
by Simone Felici 05 May '11

05 May '11

1 0

Re: [SR-Users] Kamailio lib/srdb1/db_id.c handling of multiple database connections and race condition
by Robert Verspuy 05 May '11

05 May '11

Hi Torge, I think it's better to send your mail to the mailinglist, then more people can have a look at your problem. I'm not really familiar with the kamailio source code. Just started using Kamailio about 8 months back. I came across a problem with requesting information from a postgresql database and made a patch which 'works for me'. I'm not using siptrace. Maybe you can supply more logging (through the mailinglist) of the database communication. The mysql error "Duplicate entry '96193' for key 'PRIMARY'" is a bit weird. As I said, I don't know and don't use the msyql driver in kamailio, but normally I would expect that mysql itself would take care of generating a primary key for the record. So maybe your problem is in the mysql server and not kamailio. Maybe this page can help you: http://www.softwareprojects.com/resources/programming/t-how-to-fix-mysql-du… With kind regards, Robert Verspuy Op 05-05-11 13:19, Dr. Torge Szczepanek schreef: > Hi! > > First of all thanks for all of your work. I really appreciate and I am > glad that there is such a nice Opensource SIP Proxy available. > > In a current project I am heavily relying on SIP Traces stored to a > database and other sqlops, dialplan operations using database connections. > > It seems that there is a race condition with SQL Databases (Postgres > and also MySQL) due to thread insafety as described in: > > http://lists.sip-router.org/pipermail/sr-dev/2010-October/009689.html > > This is causing multiple errors. I guess that the following error is > also caused by this race condition (thread safety): > > /usr/sbin/kamailio[5646]: ERROR: <core> [db_query.c:179]: error while > submitting query > /usr/sbin/kamailio[5646]: ERROR: siptrace [siptrace.c:532]: error > storing trace > /usr/sbin/kamailio[5646]: ERROR: db_mysql [km_dbase.c:120]: driver > error on query: Duplicate entry '96193' for key 'PRIMARY' > > My Kamailo Version (3.1.2) is reporting duplicate database URLs using > a warning: > > /usr/sbin/kamailio[5613]: WARNING: <core> [db_id.c:281]: identical DB > URLs, but different DB connection pid [5613/5562] > /usr/sbin/kamailio[5618]: WARNING: <core> [db_id.c:281]: identical DB > URLs, but different DB connection pid [5618/5562] > /usr/sbin/kamailio[5616]: WARNING: <core> [db_id.c:281]: identical DB > URLs, but different DB connection pid [5616/5562] > /usr/sbin/kamailio[5600]: WARNING: <core> [db_id.c:281]: identical DB > URLs, but different DB connection pid [5600/5562] > /usr/sbin/kamailio[5617]: WARNING: <core> [db_id.c:281]: identical DB > URLs, but different DB connection pid [5617/5562] > > Git commit 9fb37a55e0b97a98b7d2d104a7692f18cb3f7df6 is turning this > into a debug message, which I think is a bad idea if the thread > insafety still exists. > > As far as I know every thread should use its own database handle, at > least when using the MySQL API. > > Is there a way to handle this correctly? Can you give me any clues on > which approach to take here? Since I need a solution for this I would > like to fix this issue at least for myself and of course giving the > change back. > > Greetings Torge > -- > Dr. Torge Szczepanek > > Cygnus Networks GmbH Tel: +49-228-9090987-0 > Adenauerallee 73 Fax: +49-228-9090987-70 > D-53113 Bonn EMail: > info(a)cygnusnetworks.de <mailto:info@cygnusnetworks.de> > Amtsgericht Bonn, HRB 15928 SIP: info(a)cygnusnetworks.de > <mailto:info@cygnusnetworks.de> > Geschaeftsfuehrer Dr. Torge Szczepanek http://www.cygnusnetworks.de/ > Steuernummer 205/5710/1347 USt-ID DE258507007 > -- *Exa-Omicron* Patroonsweg 10 3892 DB Zeewolde Tel.: 088-OMICRON (66 427 66) http://www.exa-omicron.nl

2 1

lcr module: strip and tag
by Alida - Danilo SMALDONE 05 May '11

05 May '11

Hello, I've some understanding problem on lcr module. I've this route route[LCR] { xlog("L_INFO", "ENTRO IN ROUTE LCR ********************************** \n"); if (!load_gws(1)) { sl_send_reply("503", "Unable to load gateways"); exit; } else { $var(i) = 0; while(is_avp_set("$(avp(i:709)[$var(i)])")) { xlog("L_INFO","loading gw_uri_avp[$var(i)]='$(avp(i:709)[$var(i)])'\n"); $var(i) = $var(i) + 1; avp_print(); }; if(is_avp_set("$avp(i:709)")) { xlog("L_INFO", "Trying gateway '$avp(i:709)'\n"); } else { xlog("L_INFO", "No More Gateways \n"); }; # try the first matched gateway if (next_gw()) { xlog("L_INFO","ruri_user_avp='$avp(i:500)'\n"); xlog("L_INFO","test ruri_avp_mod='$tu'\n"); #xlog("L_INFO","************************************************************ ****\n"); avp_print(); # Route to failure for failover #t_on_failure("2"); route(RELAY); } else { sl_send_reply("503","No available gateways"); exit; }; }; exit; } And this is what I get: Apr 27 15:44:44 localhost kamailio[7827]: INFO: <script>: ENTRO IN ROUTE LCR ********************************** Apr 27 15:44:44 localhost kamailio[7827]: INFO: <script>: loading gw_uri_avp[0]='1|1|3|774|1171521237|172.16.10.200|5060||1|0' Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1328]: p=0xb60dc5b0, flags=0x0112 Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1334]: id=<709> Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1340]: val_str=<1|1|3|774|1171521237|172.16.10.200|5060||1|0 / 45> Apr 27 15:44:44 localhost kamailio[7827]: INFO: <script>: Trying gateway '1|1|3|774|1171521237|172.16.10.200|5060||1|0' Apr 27 15:44:44 localhost kamailio[7827]: INFO: <script>: ruri_user_avp='09711234567' Apr 27 15:44:44 localhost kamailio[7827]: INFO: <script>: test ruri_avp_mod='sip: 09711234567(a)voip.myproxy.it' Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1328]: p=0xb60dc624, flags=0x0110 Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1334]: id=<712> Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1342]: val_int=<0> Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1328]: p=0xb60dc5b0, flags=0x0112 Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1334]: id=<500> Apr 27 15:44:44 localhost kamailio[7827]: INFO: avpops [avpops_impl.c:1340]: val_str=<09711234567 / 11> I expected that the lcr module strips 3 numbers from avp(i:500) and adds the prefix 774. Anyone can explane why it didn't works? The called number never changes in 77409711891234567. Any help will be appreciated. Thank you Danilo

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Rtp Port Question
by Sungjin Park 04 May '11

04 May '11

Hello, I use your sip service well. But there is one problem occured. I use your sip service on my android system. The application is Csipsimple. On Wifi and 3G connection, your service is very good. your sip account did good work. even 3G network connection. Btw, On Mobile Wimax service, the signal was good. But the Voice could not be trasnsferred. I guess the problem is about rtp port. *I'd like to know the rtp port that IPTEL use*. I will request Korea Telecom about rtp port open. Korea Telecom is Korean mobile Wimax Provider. Thank you. Sungjin Park Seoul, Korea

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sr-users May 2011