sr-users December 2018

sr-users@lists.kamailio.org

60 participants
75 discussions

Merry Christmas and Happy Holidays!
by Daniel-Constantin Mierla 24 Dec '18

24 Dec '18

With the season holiday just starting, it's again a good time to express my thanks and greetings to all the friends, developers and community members that made 2018 another great year for Kamailio project. Enjoy the holidays! Merry Christmas! Daniel * Santa is flying Kamailio! * -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio World Conference - May 6-8, 2019 - www.kamailioworld.com

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app_python3 and kamailio 5.2.0 docker
by Grant Bagdasarian 24 Dec '18

24 Dec '18

Hello, I've pulled the Kamailio 5.2.0 Debian Stretch Docker image, and tried to load app_python3, but without success. It's also not in the Debian repository, at least not part of the kamailio-python-modules package. What is the current, recommended, way of installing the app_python3 module? Source files only? Regards, Grant

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failure route is not executed when suspended invite is cancelled
by Koray Vatansever 24 Dec '18

24 Dec '18

Hi all, I'm trying to upgrade kamailio from 4.2.7 to 5.1.5 and I realized that when CANCEL is received for a suspended INVITE, failure route is not executed in release 5.1.5. In 4.2.7 failure route is executed for this scenario. Is this the expected behaviour or am I missing something?

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Manipulate sip header on an in-dialog negative reply
by Olli Attila 24 Dec '18

24 Dec '18

Hello, We have a call case where our softswitch replies to in-dialog re-invite with "SIP 491 Request pending". This happens when a customer sip device is trying to re-invite the session too fast even though the softswitch is still processing the earlier request. Kamailio operates between this customer device and the softswitch. The softswitch is adding a P-Charging-Vector header to this SIP 491 reply which we want to drop (remove_hf...) from the reply when we route the SIP 491 message back to the customers device. I tried to drop this inside in-dialog failure route but it seems that Kamailio forwards the orginal 491 message statelessly to customer and the header still extists there eventhough failure route has deleted it. I guess this modification should be done in a sateful manner for Kamailio to actually write the changes to the outgoing reply towards the customer device. Any suggestions how the 491 reply could be edited and then forwarded onwards to the customer device? Cheers, --Olli

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Large PDD
by Zhan Bazarov 22 Dec '18

22 Dec '18

Hello, I have kamailio+asterisk platform. Everything works fine. But, sometimes, for unclear reasons, the PDD(8000 and more) rises to an incoming call(at the stage when the call goes to an asterisk). I can not figure it out myself (SIP is clean, hardware metrics are ok) and it happens in random order (under load and without it). Anybody have ideas, what in can the reason?

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Build Kamialio Docker Image Failed.
by Zhong, Alec (NSB - CN/Qingdao) 21 Dec '18

21 Dec '18

Hello, When we build kamailio image, the below error happened. At the same time, we can not access http://security.debian.org/debian-security/dists/jessie/updates/main/binary… Look like the Packages had been moved. Could you please help check below issue? Step 1/21 : FROM debian:jessie ---> 4eb8376dc2a3 Step 2/21 : MAINTAINER L. Mangani <lorenzo.mangani(a)gmail.com> ---> Running in ebf133dd0924 ---> 0abb8a3fcf82 Removing intermediate container ebf133dd0924 Step 3/21 : ENV HOME /root ---> Running in a92f7359fefd ---> e9872a1d4892 Removing intermediate container a92f7359fefd Step 4/21 : ENV DEBIAN_FRONTEND noninteractive ---> Running in eab86e90f492 ---> 25b976249d19 Removing intermediate container eab86e90f492 Step 5/21 : RUN apt-get update -qq ---> Running in e1132468ff42 W: Failed to fetch http://security.debian.org/debian-security/dists/jessie/updates/main/binary… 503 Service Unavailable E: Some index files failed to download. They have been ignored, or old ones used instead. The command '/bin/sh -c apt-get update -qq' returned a non-zero code: 100 make: *** [build] Error 100 Best Regards, Alec Zhong

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Kamailio as an SBC - five years on
by Alex Balashov 20 Dec '18

20 Dec '18

Hi John, Sorry, I accidentally deleted your original e-mail and thus am breaking threading; my apologies for that. As a matter of fact, I wrote an article recently to address the very questions you ask: http://www.evaristesys.com/blog/kamailio-as-an-sbc-five-years-on/ As always, it is a matter of professional opinion, and I do not speak for the project nor the intentions of the core developers. -- Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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Rather noob question about functionality of Kamailio as an SBC
by John Millican 20 Dec '18

20 Dec '18

Hello, I have read the article at: https://likewise.am/2013/03/10/kamailio-as-an-sbc-session-border-controller/ Since this was written back in 2013, I was wondering if there has been any changes/additions/improvements in Kamailio since then that would have an impact on the conclusions made in the above article? Where I work we are in the process of 1) determining what functionality we need now and in the not too distant future 2) based on the choices made in #1, do we need a fully functional "professional" SBC or can we get away with a "pedestrian" SBC and use an application like Kamailio. Generalizations are ok of course but pointers to specifics would be awesome if possible. I know this list is not here to do my homework for me. I will be doing more research myself but I am sure there are many folks here that have gone down this road already and am hoping to benefit form their experience while I build my own knowledge. Thanks, John

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Stateless non200 ACK processing
by Serge S. Yuriev 20 Dec '18

20 Dec '18

Hello, I'm trying to build pretty simple stateless proxy to stay between gw and softswitch. Most working properly but not for non200 ACKs. For some reason softswitch not accepting my ACK. Trace (note different branch in top Via for INVITE and ACK towards switch) https://pastebin.freeswitch.org/view/8f1433b0 Simplified script https://pastebin.com/u9DTSqcS I'm pretty new to this so believe doing something wrong. -- Serge S. Yuriev Senior VoIP engineer

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TOPOS with Redis Issues
by Aleksandar Sosic 20 Dec '18

20 Dec '18

Hi Guys, We're having issues trying to use redis as the db for topos. The conf is the following: ``` ... loadmodule "ndb_redis.so" loadmodule "topos.so" loadmodule "topos_redis.so" ... modparam("ndb_redis", "server", "name=srv1;addr=127.0.0.1;port=6379;db=1") modparam("topos", "storage", "redis") modparam("topos", "dialog_expire", 12600) modparam("topos_redis", "serverid", "srv1") ... ``` We've tried also with a redis server running on another machine with no success. The errors I've got in the kamailio logs are the following: ``` 2(22) ERROR: dialog [dlg_handlers.c:212]: populate_leg_info(): empty CSeq number 2(22) ERROR: dialog [dlg_handlers.c:506]: dlg_onreply(): could not add further info to the dialog ``` and ``` 17(37) ERROR: dialog [dlg_req_within.c:117]: build_dlg_t(): invalid cseq 17(37) ERROR: dialog [dlg_req_within.c:383]: send_bye(): failed to create dlg_t 17(37) ERROR: dialog [dlg_req_within.c:87]: build_dlg_t(): no contact available 17(37) ERROR: dialog [dlg_req_within.c:383]: send_bye(): failed to create dlg_t ``` Kamailio version used is this: 5.2.0+0~20181218003543.18+xenial Thanks in advance for your time, -- Aleksandar Sosic linkedin.com/in/alexsosic/ mail: alex.sosic(a)evosip.cloud

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sr-users December 2018