sr-users June 2014

sr-users@lists.kamailio.org

86 participants
145 discussions

Problem with CANCEL handling
by Mordechay Kaganer 17 Jun '14

17 Jun '14

B.H. Hello, all! I'm trying to set up kamailio as a simple load balancer proxy between PSTN gateway and a cluster of asterisk servers - rather common use case IMHO. I'm completely new to kamailio. I have started with the default kamailio.cfg that comes with Ubuntu package and added the dispatcher module as described in the docs ( http://www.kamailio.org/docs/modules/4.0.x/modules/dispatcher.html). At the end, i got this up and running, but with one exception: if incoming call is not answered by the asterisk end (i.e. it is in ringing state), and then the gateway sends CANCEL request, kamailio is unable to recognize the transaction and is not forwarding the request to asterisk. The result is: the call is left "dangling" in the PBX and is not properly hang up. When the gateway sends CANCEL to kamailio, i get the following log messages: 4(25442) DEBUG: tm [t_lookup.c:769]: t_lookupOriginalT(): DEBUG: t_lookupOriginalT: searching on hash entry 31287 4(25442) DEBUG: tm [t_lookup.c:492]: matching_3261(): DEBUG: RFC3261 transaction matching failed 4(25442) DEBUG: tm [t_lookup.c:859]: t_lookupOriginalT(): DEBUG: t_lookupOriginalT: no CANCEL matching found! 4(25442) DEBUG: tm [t_lookup.c:861]: t_lookupOriginalT(): DEBUG: t_lookupOriginalT completed 4(25442) DEBUG: tm [tm.c:1039]: w_t_lookup_cancel(): lookup_original: t_lookupOriginalT returned: (nil) 4(25442) ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=485 a=25 n=xdbg 4(25442) DEBUG: <script>: is_method(CANCEL): t_check_trans()==false 4(25442) ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=487 a=2 n=exit The relevant script snippet is standard from the distro package: # CANCEL processing if (is_method("CANCEL")) { xdbg("is_method(CANCEL): entry"); if (t_check_trans()) { xdbg("is_method(CANCEL): t_check_trans()==true"); route(RELAY); } else { xdbg("is_method(CANCEL): t_check_trans()==false"); } exit; } How can i fix this? Thanks! -- משיח NOW! Moshiach is coming very soon, prepare yourself! יחי אדוננו מורינו ורבינו מלך המשיח לעולם ועד!

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Re: [SR-Users] sip aliases
by Anna Schuster 17 Jun '14

17 Jun '14

Hi Quick question: If I create different sip aliases under my account, is any way I can see under Missed Called section on serweb.iptel.org or any elsewhere on which alias the call came on? Thank you, Anna On Sat, Jun 7, 2014 at 3:11 PM, <registrar(a)iptel.org> wrote: > > Thank you for registering with iptel.org. > > We are reserving the following SIP address for you: sip:mielul@iptel.org > > To finalize your registration please check the following URL within 24 > hours: > http://serweb.iptel.org/user/reg/confirmation.php?nr=0eb4729fad0f99434d205f… > (If you confirm later you will have to re-register.) > > Here are the details of your account: > --------------------------------------------------------------------- > Username: mielul(a)iptel.org > Password: q1q1q1q1 > Email: annasc74(a)gmail.com > Full Name: Anna M > Sip address: sip:mielul@iptel.org > (You can always retrieve these via the "Forgot Password" link on the > signup page) > > > > -- This message is automatically generated by SerWeb. >

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Re: [SR-Users] exec_avp problem
by Ansuman Manna - Asergis Telecom 17 Jun '14

17 Jun '14

Hi, I am using the exec_avp command as followed: exec_avp("/usr/bin/mwi/test.sh $fU"); $fU taking command line arguments. Here is the shell script content: #!/bin/bash -e echo $1 logger done! $1 logger done mkdir /usr/bin/mwi/$1 || { logger 'touch failed' $? $errorMessage ; exit 1; } logger is working fine but.mkdir and other system commands are not executing. I cant figureout my misses Regards, Ansuman Manna Software Developer Asergis Telecom Services Private Limited Office Tel: +91 11 6606 8400 Office Fax: +91 112554 5156 http://www.asergis.in <http://www.asergis.in>

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How to use unixodbc/freetds for kamailio backend
by Tim Chubb 17 Jun '14

17 Jun '14

Hi Im just getting started with kamailio with a view of evaluating it for production use. Is it possible to do the following: 1) I would like to use ODBC/FreeTDS to connect to an existing ms sql server cluster and use it for all DB related activity relating to kamailio, is this possible as we would be running kamailio in a HA configuration in production and I really don't want to have to support another DB cluster? 2) Looking at the kamdbctl scripts it seems that currently every popular db but sql server is supported which is a bit of a shame, however am I right in saying that if I was to port the sql files to SQL server, and implemented a script similar to kamdbctl.pgsql to wrap around the freetds TSQL executable that would be all that I would need to do add support for SQL server? 3) Is there any particular reason why there isn't an ODBC option for the kamdbctl script? Cheers.

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Kamailio and Freepbx Integration
by Carlos Rangel 16 Jun '14

16 Jun '14

Hello List I am trying to intgrate Kamailio latest release 4.1.4 and Freepbx 5.2.11 Asterisk 11.0.9 in the same box on an internal network following Daniel´s tutorial (http://kb.asipto.com/asterisk:realtime:kamailio-4.0.x-asterisk-11.3.0-astdb ) . I am very new with Kamailio and I tried like 15 times, seriously. The difference is that I am not using the sipusers table nor sipregs (I may later use sipregs) nor the voicemail tables (Freepbx can manage voicemail). I believe I was able to modify the kamailio.cfg file (DBURL and DBASTURL) in order to fetch the user information from the Freepbx tables. There is a table called devices that contents all the information needed. I also managed to not fill the secret parameter (password) on the extension configuration so Asterisk does not ask for authentication twice as recommended in the tutorial. I put the password in other table and then tell Kamailio to fetch it from the corresponding table. I can control if the users are registered in the system as long as the user is created in Freepbx with the right password, again password is not on the secret column. The weird thing is that my users can register in Asterisk even if they are not created in Kamailio (kamctl add). I was expecting them not to register if they are not created on the database. I have configured Freepbx to bind to a specific internal IP and port 5080 and configures kamailio as in the post #!ifdef WITH_ASTERISK asterisk.bindip = "xxx.xxx.xxx.xxx" desc "Asterisk IP Address" asterisk.bindport = "5080" desc "Asterisk Port" kamailio.bindip = "xxx.xxx.xxx.xxx" desc "Kamailio IP Address" kamailio.bindport = "5060" desc "Kamailio Port" #!endif Also I have added to kamailio.cfg #!define WITH_MYSQL #!define WITH_AUTH #!define WITH_USRLOCDB #!define WITH_ASTERISK #!define WITH_ANTIFLOOD I dont think this is the normal behavior, does anybody have an insight of what could be happening?? MY goal is to add the #!define WITH_NAT functionality (I havent done it yet)and then have remote trusted users connected to the PBX. Of course the concerns is to keep hackers away from my system. Thanks in advance for your help and for this great piece of software!!!! Regards and greetings from Mexico Carlos

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stampeeding server.
by Måns Nilsson 16 Jun '14

16 Jun '14

Hi, I've got a 3.3.2 Kamailio that from time to time gets very upset and starts rushing these log entries to syslog: Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore Jun 16 10:12:18 landsort /usr/local/kamailio/sbin/kamailio[37542]: INFO: <core> [mem/f_malloc.c:532]: freeing a free fragment (0x80a4fb370/0x80a4fb380) - ignore The rate is about 10000 lines per second. This fills the log partition, which locks other things up and the users are unhappy. The server recovers nicely if restarted. I have scarce logs because I have to remove logs to get service back. Any suggestions? More data on request. -- Måns Nilsson primary/secondary/besserwisser/machina MN-1334-RIPE +46 705 989668 HELLO, everybody, I'm a HUMAN!!

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Kamailio help
by Nouri El Sebai (Student) 16 Jun '14

16 Jun '14

Dear Sir/Madam, I am trying to connect (in Lebanon) as a subscribed user on Kamailio that has been installed on a remote server in the US. I am being faced with the error: Forbidden (403) Reason: Not relaying Kindly advise what I should do. Best regards, Nouri El Sebai

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rtpproxy_manage and ip addresses
by tonchek＠mac.com 13 Jun '14

13 Jun '14

HI to ALL! As I understand the logic of rpproxy_manage work, it uses packet source IP and port number from m= field of SDP as socket for rtpproxy process. So, we can see it in SIP and rtpproxy debug messages: IP 77.94.133.231.5060 > 77.94.133.232.5060: UDP, length 1170 [...headers stripped...] v=0 o=root 1523540081 1523540081 IN IP4 188.40.66.75 s=Asterisk PBX 1.6.1.20 c=IN IP4 188.40.66.75 t=0 0 m=audio 15260 RTP/AVP 8 0 101 [...sdp stripped...] Jun 13 21:38:09 puma rtpproxy[4728]: INFO:handle_command: new session on a port 57680 created, tag FppNrF9K7S8gF;1 Jun 13 21:38:09 puma rtpproxy[4728]: INFO:handle_command: pre-filling caller's address with 77.94.133.231:15260 where 172.22.11.16 is SIP packet source IP address and 17646 is the port number from SDP. Is it possible to change this behavior and use IP address from incoming SDP as well as port number? Thank you Anton

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inbound kamailio dispatcher faulty routing of ack after 200 OK
by Gijs Kwakkel 13 Jun '14

13 Jun '14

client1 <> provider <> kamailio <> asterisk <> client2 when client1 calls client2, everything seems to work. sounds works. after a few seconds the call gets terminated. after tcpdump syslog and config checks i figured out that asterisk sends 200 OK through kamailio to the provider, after this the provider sends a ACK to kamailio, kamailio however sends this ACK to itself and not to asterisk. I added the config, syslog and wireshark output (converted)

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Re: [SR-Users] Is t_on_failure with uac_req_send possible?
by Ian Lin 13 Jun '14

13 Jun '14

Hi Klaus, I've got the same problem on kamailio-4.1.0 and I couldn't see the sip messages reach to onreply route while using uac_req_send. Could you please give me a hint about this? Thanks! Cheers, Ian -- ------------------------ Ian Lin 林于巽 ------------------------

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sr-users June 2014