sr-users July 2016

sr-users@lists.kamailio.org

82 participants
125 discussions

by Nathan Ward

Hi, I think it make sense to put this topic in a seperate message, though this is very much the same scenario mentioned here: http://lists.sip-router.org/pipermail/sr-users/2016-July/093864.html I would like the ability initiate topology hiding only for certain messages - i.e. on inbound calls, I would like my Kamailio ‘SBC' to retain the routing information for inbound requests, but strip it for outgoing requests - so that I can see the full path a call has taken to reach and then traverse my network all the way to an egress SBC but then this is all stripped before forwarding the call to a 3rd party (i.e. customer, or carrier). I note that this isn’t possible at present, but I’d like to take a stab at the code, perhaps designating ‘trusted’ IPs for which topology hiding doesn’t take place. Before I embark on this, is this something that would be considered useful, or is there a good reason to have full topology hiding that I’m missing? -- Nathan Ward

8 years, 7 months

TOPOS - REGISTER

by Nathan Ward

Hi all, I’m doing some testing using Kamailio to do some lightweight SBC type functions. We have considered OpenSIPs as well as it has built in b2bua bits, but having chosen Kamailio for other parts of our network it makes sense to stick with one piece of software I think. Luckily, we only need (want) topology hiding, and don’t need other b2bua things. I have a server in the middle of our network sending registrations out to a 3rd party network for a number of lines, using Kamailio+uacreg. This works great. It sends these registrations through an SBC, also running Kamailio. I do this by setting the proxy column of the uacreg table to the SBC’s inside address. On the SBC, I rewrite the Contact header, so calls come in to the SBC. I am running topos on the SBC, and would like to be able to do topology hiding for the outgoing REGISTER. I note that there is code in tps_skip_msg to specifically avoid topology hiding for REGISTER and PUBLISH messages. Is there a SIP reason for this, or is this just a part of the code that hasn’t been finished yet or wasn’t needed by the author, so it’s been excluded? I note that topoh is the same, with a th_skip_msg function that has I think identical code, so no doubt the same reasoning is applied there. This is a very minor issue, but I’d like to understand the reasoning, and contribute code if the reason is code rather than SIP. -- Nathan Ward

8 years, 7 months

RTPProxy Issues

by TEG AMJG

Dear list I am quite new to Kamailio and i have been able to solve some NAT Traversal issues with symmetric SIP+RTP putting kamailio+rtpproxy behind NAT, i am also load balancing some asterisk boxes for transcoding and some other services like voicemail. Also i am using SIPp for load testing Now the question is that, while everything is working great with NAT (even when i am using SIPp for testing with low load) when i am about to test it with more than 150 calls or something i am starting to get the following error: *kamailio[34549]: ERROR: rtpproxy [rtpproxy.c:2735]: force_rtp_proxy(): incorrect port 0 in reply from rtp proxy* I have been trying to look at some SIP packets when the error starts and i am not seeing anything out of the normal (while being quite difficult to debug when having so many concurrent calls at SIP level) My configuration doesnt have anything new, the only thing is that, because Kamailio is behind NAT i used some ideas from some other users and debates from this same mailing list: *# RTPProxy control* *route[NATMANAGE] {* *#!ifdef WITH_NAT* * if(is_request()) {* * if(has_totag()) {* * if(check_route_param("nat=yes")) {* * setbflag(FLB_NATB);* * }* * }* * }* * if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))* * return;* * if(!route(FROMASTERISK)){* * force_send_socket(10.0.1.207);* * rtpproxy_manage("rw","10.0.1.206");* * }else{* * force_send_socket(10.0.1.206);* * rtpproxy_manage("rw","10.0.5.203");* * }* * if (is_request()) {* * if (!has_totag()) {* * add_rr_param(";nat=yes");* * }* * }* * if (is_reply()) {* * if(isbflagset(FLB_NATB)) {* * fix_nated_contact();* * }* *#!endif* * return;* *}* This solution is based of someone's idea from this mailing list: http://lists.sip-router.org/pipermail/sr-users/2013-January/076254.html As you can see in my configuration, my "public network" is really private network so i tweak the NATDETECT route to not include RFC1918 networks as part of the detection *# Caller NAT detection route* *route[NATDETECT] {* *#!ifdef WITH_NAT* *if (nat_uac_test("1")) {* * if (nat_uac_test("18")) {* * force_rport();* * if (is_method("REGISTER")) {* * fix_nated_register();* * } else {* * fix_nated_contact();* * }* * setflag(FLT_NATS);* * return;* * }* * }* *#!endif* * return;* *}* Also i would like to know how may i use RTPProxy logs?, i tried to configure it like this: /etc/rsyslog.conf *# Kamailio logging* *local0.* -/var/log/kamailio.log* *#RTPProxy logging* *local3.* /var/log/rtpproxy.log* /etc/sysconfig/rtpproxy *OPTIONS="-l 10.0.1.206 -A 10.0.5.203 -s udp:127.0.0.1:7722 <http://127.0.0.1:7722> -r /var/lib/rtpproxy/sessions -d DBUG:LOG_LOCAL3 -m 35000 -M 55000 -F"* I cannot see anyhing in the logs Thank you very much Alejandro

8 years, 7 months

Questions

by francisco rodriguez

Hello ; I have the sip account with you, but to put it to work in a team asks me some data. you can tell me what they are. my account is sip: masterlaradio(a)iptel.org I request the following information IP SERVER :? SERVER USER? USERNAME? STUN DOMAIN? DNS SERVER? thanks for your attention and collaboration Francisco Rodriguez Enviado desde Correo<https://go.microsoft.com/fwlink/?LinkId=550986> para Windows 10

8 years, 7 months

Websocket Path Issues

by Colin Morelli

Hey all, I'm using Kamailio as an outbound edge proxy for websocket connections. When my registrar calls out to Kamailio to forward to a websocket connection that has since been killed, rather than just entering the failure branch, it throws a few errors: 5(24) WARNING: <core> [msg_translator.c:2760]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found 5(24) ERROR: <core> [msg_translator.c:1978]: build_req_buf_from_sip_req(): could not create Via header 5(24) ERROR: tm [t_fwd.c:476]: prepare_new_uac(): could not build request 5(24) ERROR: tm [t_fwd.c:1737]: t_forward_nonack(): ERROR: t_forward_nonack: failure to add branches 5(24) ERROR: sl [sl_funcs.c:363]: sl_reply_error(): ERROR: sl_reply_error used: No error (2/SL) Ultimately this means the proxy gets a 500 rather than a 430 flow failed, and the registration sits around in the proxy when it should be removed. Am I missing something obvious to get this behavior? Best, Colin

8 years, 7 months

Re: [SR-Users] Determining if request is from a local domain

by Shane Harrison

Hi all, Solved! As is often the case, after working all morning on the problem, after posting I discovered my error. I noticed that I hadn't included in my post the "alias=" command. It was indeed in my script but I had used aws-rcsstg.voip.systems instead of aws-rcsstg.vvoip.systems ! I don't know how many times I have stared at that but I guess you often see what you want to see...... Apologies for wasting your time. Kind regards Shane > -----Original Message----- > From: Shane Harrison > Sent: Wednesday, 13 July 2016 2:48 p.m. > To: 'sr-users(a)lists.sip-router.org' > Subject: Determining if request is from a local domain > > Hi all, > > From previous posts my understanding is that RURI's are matched against > reverse DNS lookup of listen addresses and aliases set via the "alias=" > parameter in the config file (assuming the domain module isn't being used). > However I am having difficulty in getting this to work. From looking at the > code and the log file, it appears to me as if the alias isn't making it into the list > of hosts that is checked against for some reason. > > Kamailio proxy is behind a loadbalancer (Kamailio dispatcher) and proxy is > trying to relay the request because it doesn't recognise it as a local domain. > Any thoughts on where my error is would be appreciated. > > Relevant CFG file section - note that > RCS_LB_PUBLIC_IP:RCS_LB_PUBLIC_PORT is 52.64.xxx.221 :5061 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ~~~~~~~~~~~~~~~~~~~~ > auto_aliases=yes > > # aliases and listening settings for sipproxy alias="aws-rcsstg.voip.systems" > listen=tcp:10.4.1.62:5060 advertise > RCS_LB_PUBLIC_IP:RCS_LB_PUBLIC_PORT > > > My request is a REGISTER as follows: > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > received message > REGISTER call-id b2ed2fdd(a)192.168.148.30 received from 10.4.1.62 raw msg > REGISTER sip:aws-rcsstg.vvoip.systems;transport=tls SIP/2.0 > Via: SIP/2.0/TCP > 52.64.xxx.221:5060;branch=z9hG4bKa691.5fd57c2a783d3a5d7f6f80fcd0c815d > 6.0;i=d91 > Via: SIP/2.0/TLS > 192.168.148.30:5061;received=203.171.46.54;rport=64515;branch=z9hG4bK68 > b886fd00518;keep > From: <sip:+6421608919@aws- > rcsstg.vvoip.systems;transport=tls>;tag=4af7e7d8 > To: <sip:+6421608919@aws-rcsstg.vvoip.systems;transport=tls> > Call-ID: b2ed2fdd(a)192.168.148.30 > CSeq: 1995005270 REGISTER > Max-Forwards: 69 > Contact: > <sip:+6421608919@203.171.46.54:64515;transport=tls>;expires=240;+sip.inst > ance="<urn:uuid:23624e3d-c98e-3b76-9acb-5499202e2f8d>";reg- > id=1;+g.3gpp.iari-ref="urn%3Aurn-7%3A3gpp- > application.ims.iari.rcs.sm";+g.oma.sip-im;+g.3gpp.iari-ref="urn%3Aurn- > 7%3A3gpp-application.ims.iari.gsma-is";+g.3gpp.cs-voice;+g.3gpp.iari- > ref="urn%3Aurn-7%3A3gpp-application.ims.iari.gsma-vs";+g.3gpp.iari- > ref="urn%3Aurn-7%3A3gpp-application.ims.iari.rcse.sp";+g.3gpp.icsi- > ref="urn%3Aurn-7%3A3gpp-service.ims.icsi.mmtel";video > User-Agent: FlowTalk-WindowsCommunicator_5.x > P-Access-Network-Info: IEEE-802.3 > Allow: > INVITE,ACK,BYE,CANCEL,REFER,NOTIFY,OPTIONS,PRACK,UPDATE,INFO,MESS > AGE,SUBSCRIBE,PUBLISH > Allow-Events: refer, presence > Supported: 100rel, replaces, timer, gruu, join, histinfo, path > Date: Wed, 13 Jul 2016 00:27:39 GMT > Content-Length: 0 > Path: > <sip:52.64.xxx.221:5060;transport=tcp;lr;received=sip:203.171.46.54:64515%3 > Btransport%3Dtls> > > > Relevant section of the log where if( !uri == me ) is tested: > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > Jul 13 03:18:06 aws-rcsstg-sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: > ERROR: *** cfgtrace:request_route=[SIPOUT] > c=[//etc/kamailio/kamailio.cfg] l=1052 a=16 n=if Jul 13 03:18:06 aws-rcsstg- > sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core> > [socket_info.c:583]: grep_sock_info(): grep_sock_info - checking if host==us: > 24==9 && [aws-rcsstg.vvoip.systems] == [10.4.1.62] Jul 13 03:18:06 aws- > rcsstg-sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core> > [socket_info.c:587]: grep_sock_info(): grep_sock_info - checking if port 5060 > (advertise 5061) matches port 5061 Jul 13 03:18:06 aws-rcsstg-sip-proxy-i- > b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core> [socket_info.c:603]: > grep_sock_info(): grep_sock_info - checking advertise if host==us: 24==13 > && [aws-rcsstg.vvoip.systems] == [52.64.xxx.221] Jul 13 03:18:06 aws-rcsstg- > sip-proxy-i-b879b469 /usr/sbin/kamailio[9367]: DEBUG: <core> > [forward.c:448]: check_self(): check_self: host != me > > > Kind regards > > Shane Harrison > Senior Software Engineer > > Imagination Technologies NZ Limited > Level 2 > 1 Market Grove > Lower Hutt, 5010 > New Zealand > > PO Box 30-449 > Lower Hutt, 5040 > New Zealand > > Phone: +64 4 890-3681 ext 3361 >

8 years, 7 months

Re: [SR-Users] kamcmd & route[REMOTE_TEST]

by Daniel-Constantin Mierla

Hello, On 14/07/16 11:02, Marino Mileti wrote: > > Hi guys, > > > > I've two question regarding rpc command. > > > > Is it possible to "execute" a specific route (for example my > route[REMOTE_TEST]) using a rpc command by kamcmd? > > > > If not exist some other tricks to do this? > you can send a xmlrpc, jsonrpc or just http request to kamailio and it will result is executing a route or event_route inside kamailio.cfg, from where you can execute other sub-routes. See xmlrpc, jsonrpc-s or xhttp modules. Obviously, you can send a sip message with tools like sipsak or sipp from command line and handle it inside request_route to execute what route block you want. Sometimes it may just suit executing a route block periodically -- for that see rtimer module. Cheers, Daniel > > > Another question...regarding uac module... > > When Kamailio starts the UAC module makes a REGISTER according to > database...and periodically refresh this registration. Is it possible > to "force" a refresh with rpc command by kamcmd? > > > > Many thanks! > > > > /Marino Maria Mileti/// > > /marino.mileti(a)alice.it <mailto:marino.mileti@alice.it>/ > > / / > > /cid:006a01cb6b0e$67eecdae$_CDOSYS2.0//Reduce your energy consumption > and keep polar bears on ice!/ > > > > > > ------------------------------------------------------------------------ > Avast logo > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > Questa e-mail è stata controllata per individuare virus con Avast > antivirus. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla http://www.asipto.com - http://www.kamailio.org http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

8 years, 7 months

Re: [SR-Users] kamcmd & route[REMOTE_TEST]

by SamyGo

Hi Marino, How do you mean execute a route !? like enable a route for all calls onwards after the RPC command execution ? or for a specific call engage that route ? If this is to enable/disable a particular route for ALL calls based on a RPC command I'd make use of some DB or memcache variable to trigger this route i.e if(redis_cmd("srvN", "GET toggle_route", "r")){ $avp(signal) = $redis(r=>value); if($avp(signal) =~ 'true') { route(REMOTE_TEST); } } I used Redis, you can see if any RPC command can let you modify value of an AVP directly. For your second question check RPC commands uac.reg_refresh <http://www.kamailio.org/docs/modules/4.3.x/modules/uac.html#uac.r.uac.reg_r…> . Regards, Sammy On Thu, Jul 14, 2016 at 5:02 AM, Marino Mileti <marino.mileti(a)alice.it> wrote: > Hi guys, > > > > I've two question regarding rpc command. > > > > Is it possible to "execute" a specific route (for example my > route[REMOTE_TEST]) using a rpc command by kamcmd? > > > > If not exist some other tricks to do this? > > > > Another question...regarding uac module... > > When Kamailio starts the UAC module makes a REGISTER according to > database...and periodically refresh this registration. Is it possible to > "force" a refresh with rpc command by kamcmd? > > > > Many thanks! > > > > *Marino Maria Mileti* > > *marino.mileti(a)alice.it <marino.mileti(a)alice.it>* > > > > *[image: cid:006a01cb6b0e$67eecdae$_CDOSYS2.0]**Reduce your energy > consumption and keep polar bears on ice!* > > > > > ------------------------------ > [image: Avast logo] > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > Questa e-mail è stata controllata per individuare virus con Avast > antivirus. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > >

8 years, 7 months

kamcmd & route[REMOTE_TEST]

by Marino Mileti

Hi guys, I've two question regarding rpc command. Is it possible to "execute" a specific route (for example my route[REMOTE_TEST]) using a rpc command by kamcmd? If not exist some other tricks to do this? Another question...regarding uac module... When Kamailio starts the UAC module makes a REGISTER according to database...and periodically refresh this registration. Is it possible to "force" a refresh with rpc command by kamcmd? Many thanks! Marino Maria Mileti <mailto:marino.mileti@alice.it> marino.mileti(a)alice.it cid:006a01cb6b0e$67eecdae$_CDOSYS2.0Reduce your energy consumption and keep polar bears on ice! --- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus

8 years, 7 months

Modules How To ?

by Eng Hooda

Hello All, I just started using kamailio last month , using basic configuration I got from online tutorials I got it to work. Now I need to add functionality like offline messages delivery , searching lead me to msilo module , unfortunately I could not find a detailed tutorial of how to enable it and troubleshoot it's operation. All what I managed to find was the official technical documentation. https://www.kamailio.org/docs/modules/stable/modules/msilo.html It provides a list of parameters which has a default value , with no indication if the declaration of any of them is mandatory if the default values are kept intact. also there is a route code which I do not know if it was mandatory to copy to kamailio.cfg . Not to mention that the configuration file example contains lines that is already similar to what I already have , so which to keep and which to replace ? That was a case to apply to , but general answers (with msilo as an example) that apply to all modules is what I need just to avoid having to ask again if I needed to enable another module. Or may be there is something out there that I need to read first. system details : {(OS:Debian8 i386),(Kamailio4.4 with mySQL , UDP only)} Thank you all in advance. Best Regards, Eng Hooda

8 years, 7 months

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sr-users July 2016