May 2012 - sr-users - kamailio.org

Creating RURI ($ru) from Contact ($ct)
by Aft nix 28 May '12

28 May '12

On Mon, May 28, 2012 at 4:52 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: > Hello, > > On 5/27/12 12:46 AM, Aft nix wrote: >> >> [...] >> >> Hi Aleksandrov >> Thanks for the reply. >> >> Yes my checks should be more specific. >> >> On the side how , i'm facing difficulties to print script variables >> and hashtable entries. >> >> xdbg("my var [$var(temp)]") >> xdbg("my hash entries [$sht(a=>$ci)"]) >> >> Both statements shows parse errors. What's the correct syntax to print >> script >> variables and hash table entries? > > if you copy&paste the lines from your config, then the errors are: > - missing ; at the end of lines > - second xdbg has the double quotes before ], making it invalid syntax Hi Daniel, Thanks, other than the typo, its ok to print stuffs like this, then. > > Cheers, > Daniel > > -- > Daniel-Constantin Mierla - http://www.asipto.com > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda > Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - > http://asipto.com/u/katu > > > -- -aft -- -aft

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Installation of Kamailio, Asterisk, siremis in Debain Squeeze
by Vijay Thakur 28 May '12

28 May '12

Dear Experts, I want to install Kamailio, Asterisk, siremis in Debian 6.0 Squeeze. For this purpose i have followed the following document: (1) http://nil.uniza.sk/sip/kamailio/installing-siremis-20-kamailio-web-managem… - Siremis Installation (2) http://kb.asipto.com/kamailio:skype-like-service-in-less-than-one-hour - Kamailio Installation (3) http://nil.uniza.sk/sip/kamailio/installing-siremis-20-kamailio-web-managem… - Siremis Installation I need the following features: 1 User Management 2 Contacts 3 Instant Messaging 4 My Presence (Presence Status) 5 Voice Call (SIP) 6 Conference (SIP Audio Calls) 7 Video calls 8 SMS 9 Outbound Audio Call 10 File Transfer 11 Video calls 12 Share Link 13 Face book Integration 14 Push Notifications (Broadcast Message) According to the the documents, some features are not working, or working features are not working sometime as supposed to work. Kindly suggest me straight forward document or any help to achieve it. -- Best Regards, Vijay Thakur (Assistant Manager - Networks) Mobile : +91 8744018065 Mail :vijay.thakur@loopmethods.com Loop IT Methods Private Limited 1st Floor, B-10, Sector-7, Noida, (U.P) India Ph: +91 120 305 3481,82 (INDIA), +1 347 468 8631 (USA), +61 390 011 178 (AUS) Fax: +91 971 728 330 Web:www.loopmethods.com LOOP Disclaimer ------------------------------------------------------------------------------------------------- This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited. -----------------------------------------------------------------------------------------------------------------

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Sending MSRP message to kamailio/msrprelay causes 501 error
by Reichert Alexander 28 May '12

28 May '12

Hi, We are developing a Java based SIP gateway implementation and are performing some integration tests on a kamailio/msrprelay server (plugin from www.msrprelay.org) The SIP signaling part works so far, but when sending a MSRP message, the client receives a 501 "Unknown method" error. However, it seems the request does not reach the MSRP module on the server as there is no corresponding trace log on the server side. On Protocol level, everything looks fine so far, the sequence executed is as follows: -->SIP REGISTER <-- SIP/2.0 401 Unauthorized -->SIP REGISTER <--SIP/2.0 200 OK -->INVITE <--SIP/2.0 407 Proxy Authentication Required -->ACK -->INVITE <--SIP/2.0 180 Ringing <--SIP/2.0 180 Ringing <--SIP/2.0 200 OK -->ACK The INVITE is processed with the following SDP packet in the request: v=0 o=- 1337788359935 1337788359935 IN IP4 localhost s=MSRP Session c=IN IP4 localhost t=0 0 m=message 2855 TCP/MSRP * a=path:msrp://localhost:2855/U3FuvW00m62UY0020H71;tcp a=accept-types:message/cpim text/* application/im-iscomposing+xml a=accept-wrapped-types:* a=setup:active And response: v=0 o=- 3546777215 3546777216 IN IP4 46.105.78.68 s=sipsimple 0.20.0 c=IN IP4 46.105.78.68 t=0 0 m=message 57233 TCP/MSRP * a=path:msrp://msrphost:2855/5AUNTOt7XlFsK7VuT4SzETEzMzc3ODg0MTUuMDcyOjQ2LjEwNS43OC42OA==;tcp msrp://msrphost:57233/6bf6dd73b9e4587b65b6;tcp a=accept-types:message/cpim text/* application/im-iscomposing+xml a=accept-wrapped-types:* a=setup:passive But when sending the MSRP message, 501 is returned: MSRP f0CHA1TD SEND To-Path: msrp://msrphost:57233/6bf6dd73b9e4587b65b6;tcp From-Path: msrp://localhost:52673/b10XadK9;tcp Message-ID: 13377883623135c260a3568cc Byte-Range: 1-*/14 Hello Francois -------f0CHA1TD$ MSRP f0CHA1TD 501 Unknown method: SEND To-Path: msrp://localhost:52673/b10XadK9;tcp From-Path: msrp://msrphost:57233/6bf6dd73b9e4587b65b6;tcp -------f0CHA1TD$ When testing with two sip-simple client endpoints, MSRP messaging works fine, but on protocol traces we cannot identify any differences between sip-simple communication flows and the ones we are implementing. Does anyone have a hint on what is wrong in this message flow? Any advice is appreciated. Thanks, Alex

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Creating RURI ($ru) from Contact ($ct)
by Aft nix 28 May '12

28 May '12

Hi, I'm trying to create a ruri from contact header like following : In request route I've saved contact header in a hashtable using htable module. request_route{ --------------------- --------------------- #!ifdef WITH_HASH if (is_method("INVITE") && !has_totag()){ xdbg ("Contact [$ct] with Callid [$ci]"); $sht(a=>$ci) = $ct; } #!endif ---------------- } And in route[WITHINDLG] route[WITHINDLG] { --------------------------- --------------------------- #!ifdef WITH_HASH xdbg ("ruri [$ru]"); if ($sht(a=>$ci) != $ru){ $ru = ($sht(a=>$ci)); xdbg ("rewriting ruri to [$ru]"); } #!endif But it log shows that its unable to parse the uri : [4039]: DEBUG: <core> [parser/parse_uri.c:1277]: parse_uri: bad uri, state 0 parsed: <<sip> (4) / <<sip:2020@103.23.169.2:64358>> (29) : DEBUG: <core> [parser/parse_uri.c:1327]: ERROR: parse_sip_msg_uri: bad uri <<sip:2020@103.23.169.2:64358>> [4039]: ERROR: pv [pv_core.c:232]: failed to parse the R-URI [4039]: DEBUG: <script>: rewriting ruri to [<null>] I'm not understanding what's wrong with that. May be the port part should be discarded, but how i'm gonna do that? -- -aft

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SER configuration File build system
by G Madhavi 28 May '12

28 May '12

Dear sir, We are searching for *ser.buildsystem.latest.tar.gz* in the internet throughly. But we are unable to find this particular file.so please send me the file or the web links which we can be able to download and configure our IMS network in proper. * * * * Thank you Best Regards, madhavi -- * *

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any documentation around?
by Sherif Omran 26 May '12

26 May '12

Hi guys, is there any documentation for Siremis around? thanks S.

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TLS config file
by Bruno Bresciani 25 May '12

25 May '12

The parameter [server:default] of TLS config file must be declared? I want specify two different interfaces (WAN and LAN) and I don't know which interface will be used as default by TLS module... Someone know some information about my question? Best Regards

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[OT] sems [and kamailio] in risk-of-life service
by Daniel-Constantin Mierla 25 May '12

25 May '12

just forwarding from SEMS mailing list an interesting story of using kamailio and sems in emergency services... -------- Original Message -------- Subject: [Sems] sems in risk-of-life service Date: Thu, 24 May 2012 15:29:38 +0800 From: Jeremy A <jeremy(a)electrosilk.net> To: sems(a)lists.iptel.org Hi, This is a belated report on the use of SEMS in a risk of life service. The system uses kamailio in a distributed architecture of dozens of Fire & Rescue stations. This is heavily based on distributed and replicated DNS. A single '911' style headquarters has duplicate hot swap-over control rooms at other locations. The headquarter and alternate posts have servers that service HQ operator positions with SIP phones. These provides sidecar indication of F&R Station state for up to 64 F&R stations - using BLF. These phones are hooked into an integrated analogue audio management system. Each Fire and Rescue station has an embedded SIP based controller that runs Kamailio and proprietary software to control the F&R station electrical and safety systems as well as provide public address functions to alert the F&R staff of a new emergency. These PA announcements are SIP based using a DSL network and are live from the HQ positions, plus computer synthesized voice, as well as alerting tones. Each station also has multiple SIP phones for in-station and station to station calling. The network is decentralized so failure of the central control system still allows point to point communications between Fire and Rescue stations. The headquarter systems uses SEMS as the primary operator manager to perform multiple simultaneous deployment calls to remote Fire and Rescue stations. SEMS is used to create a dynamic conference between an operator and multiple Fire & Rescue stations. These are automatically initiated by SEMS and answered by the F&R embedded systems. This means an operator can broadcast a deployment message and initiate station control activities at up to five stations (fifth alarm) This is only constrained by the bandwidth available at the headquarters. Our SEMS packages have been designed to handle non-answered calls to the conference and provide operator indication by 'SMS' messages to the handsets and audio feedback. The system provides full forensic recording by using rtpproxy at all locations. These recordings are archived by an out-of-band process. Control of the system is purely SIP based - so every item in the system is a SIP based entity. This includes servers, embedded systems, and phones. The phones are physically integrated into operator positions that also handle PSTN, PBX, and radio traffic. The interface is purely keyboard on the operator phones. Options for integration of the SIP system into CAD (Computer Aided Dispatch) are obvious. The only drawback is the rusty and ancient systems and the unbelievable process required to get approval to integrate. The system as provided provides at least 5 nines reliability. Probably a lot better. The only downside is the DSL network (provided by others at amazing expense) that provides a system with a lousy 2 nines reliability. We are in the process of developing an offering using redundant DLS/3G routing to improve this. The field stations are a hybrid Centos 5/Slax system running out of flash. The HQ systems are straight Centos 5 systems running off disk or off flash. Future versions will be pure Centos out of flash with no fancy memory overlay - flash is well good enough. The system has been live for over a year with no major issues. I can't say how many lives have been saved, but certainly quite a few. At least we haven't been sued yet :-) Cheers.

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Hop by hop CANCEL, wrong to header
by Vitaliy Aleksandrov 25 May '12

25 May '12

Hi all, I have a question about CANCEL message processing. My call sceraio: When an INVITE request comes I need to rewrite a domain part of the several headers(to, from, contact, SDP ip) according to the outgoing interface. I can do it before t_relay(), but when destination user has more then one locations and they are reachable through different interfaces all forked INVITEs will have the same domain. To avoid that problem i have tried to move rewriting part(subst from the textops module) to the branch_route. Unfortunately that solution didn't helped me, because "To" header of the outgoing CANCEL messages is wrong (unchanged. as it was at the moment when transaction was created by the t_relay() ). As i understood from the documentation and mailing list kamailio builds CANCEL based on outgoing INVITE. I did a small research and found that Kamailio really takes outgoing INVITE from each branch (invite_transaction_cell -> uac[b_id].request.buffer) and builds CANCEL (build_local_reparse() from tm/t_msgbuilder.c) based on it. But kamailio does an exception for the To header which is described below: ***cancel_branch* function (from t_cancel.c) calls *build_local_reparse*() and fills one of the parameters with a pointer to unmodified To header. * build_local_reparse*() uses received To header to construct outgoing CANCEL. I have changed: cancel = build_local_reparse(t, branch, &len, CANCEL, CANCEL_LEN, &t->to, reason); to: cancel = build_local_reparse(t, branch, &len, CANCEL, CANCEL_LEN, NULL, reason); and it works for me now. It looks like if E2E_CANCEL_HOP_BY_HOP *e2e_cancel()* (t_fwd.c) will call *e2e_cancel_branch()* which works as i want instead of *cancel_branch()*, but it is just my assumption. Why does kamailio generate CANCEL requests in such a way ? Did i miss something from the RFC3261 or kamailio documentation ? Thanks in advance for any help !

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rtpproxy and timeout notification
by Laurent Schweizer 24 May '12

24 May '12

Hello all, I see the new timeout notification feature from the rtpproxy when no voice traffic is detected. I have 2 questions regarding this timeout notification: 1) When a timeout is detected and kamailio send the BYE is that possible to manipulate the BYE before he is sent to add maybe an extra header that indicate that the call was stopped due to a timeout issue ? 2) If a user put the call on hold (with a=recvonly or maybe old way IP=0.0.0.0.0) what will happens (the music on hold is not generated by rtpproxy but by another server) ? he will detect this as a timeout ? Is that possible to indicate to rtpproxy that for a moment stream will be only in one way ? Best regards Laurent

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