sr-users January 2016

sr-users@lists.kamailio.org

86 participants
111 discussions

Kamailio - Asterisk: Handling loss of SIP BYE and dangling channels

by Benjamin Fitzgerald

Hi, I'm wondering what the best approach to handling a SIP dialog when one endpoint disappears/fails to send the BYE message. I have Kamailio as a proxy for all mobile (iPhone/Android) SIP clients. Occasionally, the user hangs up the call but no BYE message is received. This means that Asterisk has an open channel even though there is no client. Kamailio also continues to receive successful registrations from the SIP client so the endpoint is not down completely. Is Kamailio the appropriate place to handle this situation? What do you recommend? If not could you point me in the right direction? RTP timeout? Asterisk? The SIP client itself? Thanks for your help. Benjamin Fitzgerald LETS Corporation (925) 235-1154 ben(a)letscorp.us

8 years, 10 months

Audio issue when using 2 port ATA

by Daniel W. Graham

Setup is - 2 port ATA <> FIREWALL <> KAMAILIO / RTPPROXY <> ASTERISK If I have a single port in use behind the firewall, all NAT functions work properly and media is relayed through rtpproxy. If I have both ports in use behind the firewall, when outbound calls from UA are placed there is two way audio on both calls. However if inbound calls are placed to UA, the first call works, second call only has outbound audio. Different SIP URI is used for each port. If the firewall is eliminated everything works fine. Anyone have an idea how to troubleshoot or what could be missing? I have done packet captures on both the UA side and Kamailio side, and I see two RTP flows (rtp ports match on both sides as well) despite lack of inbound audio on the second call. If I can post anything config wise that would help let me know. Thanks! -Dan

8 years, 10 months

Example kamailio.cfg t_check_trans()

by Phil Lavin

Hi there, The example config that Kamailio ships with contains this block of code in request_route: # handle retransmissions if(t_precheck_trans()) { t_check_trans(); exit; } t_check_trans(); I am not fully understanding the requirement for either of the t_check_trans() here. As far as I can see from the documentation, t_check_trans() returns a boolean value and does not modify any data internally. Can anyone help me find out what the relevance of the t_check_trans() calls is? Thanks Phil Lavin Systems Engineer CloudCall by SYNETY www.cloudcall.com<http://www.cloudcall.com> T: +44 (0) 330 335 0000 / +1 617 982 1600 D: +44 (0) 116 424 4790 / +1 617 982 4790 SM: LinkedIn<https://uk.linkedin.com/pub/phil-lavin/25/422/750> READ OUR BLOG FOR SMARTER COMMUNICATIONS<http://t.sidekickopen03.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJW7t5XX43…> Confidentiality: This e-mail transmission, including any attachments, is intended only for the named recipient(s) and may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you have received this transmission in error, or are not the named recipient(s), please notify the sender immediately by return e-mail and permanently delete this transmission, including any attachments. Security: This e-mail and any attachments are believed to be free from any virus but it is the responsibility of the recipient to ensure this is so. E-mail is not a 100% secure communication.

8 years, 10 months

using pipelimit at CPS (1 second)

by Vik Killa

Hello, has anyone used pipelimit at a timer_interval of 1 second? We would like to do rate-limiting based on CPS? The doc says it can be CPU intensive. Testing with SIPP, we see the CPU go up to around 30% at 500 CPS (with pipelimit blocking at 300 CPS) Thanks /V

8 years, 10 months

Add Record-Route on 200 OK

by Igor Potjevlesch

Hello, I'm looking for a way to add a Record-Route into a 200 OK before relaying the message to the UA. Indeed, I'm facing an issue where the 200 OK is relayed to the UA without Record-Route and with an IP address into the Contact header. So, the UA sends back his ACK to the Contact instead of the proxy itself. Is it possible to achieve this? Regards, Igor.

8 years, 10 months

config file error for kamailio wheezy

by Ramya Y

Hi, *I recently installed kamailio 4.1 on debian wheezy (i386)* Below are the list of modules in debian wheezy. root@debian:/etc/kamailio# find / -name modules /etc/modules /etc/initramfs-tools/modules /etc/gnome-vfs-2.0/modules /lib/modules /usr/share/initramfs-tools/modules /usr/share/doc/initramfs-tools/examples/modules /usr/share/doc/kamailio/modules /usr/lib/vmware-tools/lib64/libconf/pango/1.6.0/modules /usr/lib/vmware-tools/lib64/libconf/gtk-2.0/modules /usr/lib/vmware-tools/lib32/libconf/pango/1.6.0/modules /usr/lib/vmware-tools/lib32/libconf/gtk-2.0/modules /usr/lib/i386-linux-gnu/libproxy/0.3.1/modules /usr/lib/i386-linux-gnu/pango/1.6.0/modules /usr/lib/i386-linux-gnu/kamailio/modules /usr/lib/i386-linux-gnu/gio/modules /usr/lib/xorg/modules /usr/lib/gnome-vfs-2.0/modules /proc/asound/modules /proc/modules so i have added below mpath in kamaiio.cfg ,still i am facing errors .could you please help on it . *Added mpath in kamialio.cfg :* mpath="/.... .../:/usr/lib/i386-linux-gnu/kamailio/modules/" mpath="/usr/lib/i386-linux-gnu/kamailio/modules/" *facing error:* root@debian:/etc/kamailio# kamailio start loading modules under config path: /.... .../:/usr/lib/i386-linux-gnu/kamailio/modules/ loading modules under config path: /usr/lib/i386-linux-gnu/kamailio/modules/ ERROR: bad config file (1 errors) Segmentation fault note: For same debain wheezy used for PCSCF ,it is working fine . For ICSCF and SCSCF iam facing errors. only observed one is, for these i have installed mysql where for pcscf mysql is not installed. Is this any problem for modules. could you please assist me further. Thanks in Advance! Regards, Ramyasri.

8 years, 10 months

Kamailio crashing after comparing AVP with string

by Jurijs Ivolga

Hi, I have weird behavior, when I'm trying to compare AVP with string: if ($avp(AVP_ATTRS) != "bla") { ds_next_dst(); } $avp(AVP_ATTRS) contains Dispatcher attribute. Kamailio crashes: Dec 17 03:39:30 /usr/local/sbin/kamailio[4844]: CRITICAL: <core> [pass_fd.c:275]: receive_fd(): EOF on 15 Dec 17 03:39:30 /usr/local/sbin/kamailio[4810]: ALERT: <core> [main.c:728]: handle_sigs(): child process 4816 exited by a signal 11 Dec 17 03:39:30 /usr/local/sbin/kamailio[4810]: ALERT: <core> [main.c:731]: handle_sigs(): core was not generated Dec 17 03:39:30 /usr/local/sbin/kamailio[4810]: INFO: <core> [main.c:743]: handle_sigs(): terminating due to SIGCHLD Dec 17 03:39:30 /usr/local/sbin/kamailio[4843]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4842]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4841]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4840]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4839]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4838]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4837]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4836]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4835]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4834]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4829]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4814]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4815]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4823]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4813]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4821]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4812]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4818]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4825]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4819]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4822]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4844]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Dec 17 03:39:30 /usr/local/sbin/kamailio[4830]: INFO: <core> [main.c:798]: sig_usr(): signal 15 received Following code works fine: if ($avp(AVP_ATTRS) == "bla") { ds_next_dst(); } Kamailio version: version: kamailio 4.3.4 (x86_64/linux) a56227 flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: a56227 compiled on 03:29:23 Dec 17 2015 with gcc 4.4.7 Thak you! With kind regards, Jurijs

8 years, 10 months

Negative value returned when using sql_pvquery

by Jonathan Hunter

Hi Guys, Wonder if anyone has experienced this before, on kamailio 4.1. I am using an sql_pvquery and it works fine, unless I pull a value from the database that is defined as 10 digits and starts with a 3, actually its populated as 03785702370 but due to the table it removes the leading 0 (bigint(20) unsigned). Running a manual query in my database for a DestinationMsisdn I get; select DestinationMsisdn,SourceMsisdn from MsisdnPoolAllocations where PoolMsisdn='+44162489xxxx';+-------------------+--------------+| DestinationMsisdn | SourceMsisdn |+-------------------+--------------+| 3785702370 | 4474526xxxxx |+-------------------+--------------+ However running in the kamailio.cfg an sql_pvquery to do the same query as below; sql_pvquery("cd","select DestinationMsisdn,SourceMsisdn from MsisdnPoolAllocations where PoolMsisdn='$rU'","$var(MOdest),$var(NewSourceMSISDN)"); However this returns a value of -509264926 for $var(MOdest) which should just be the 3785702370 number. What can cause kamailio to interpret this as a negative value? Has anyone seen this before? Many thanks Jon

8 years, 10 months

Re: [SR-Users] Fosdem 2016

by DanB

Hey Daniel, Please also count me in (and possible 2 other friends) for dinner/event out. Thanks, DanB

8 years, 10 months

Kamailio World 2016 – Call For Speakers

by Daniel-Constantin Mierla

Hello, should anyone here be interested in submitting a proposal for a presentation at Kamailio World 2016, note that the process is open now. More details were posted on a news article at: - http://www.kamailio.org/w/2016/01/kamailio-world-2016-call-for-speakers/ Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com http://miconda.eu

8 years, 10 months

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sr-users January 2016