August 2012 - sr-users - kamailio.org

Kamailio packet sourcing
by Luis Fernando Urrea 17 Aug '12

17 Aug '12

Hi all, I am sort of a new comer to kamailio and I have a config in which Kamailio listens on different IPs that correspond to SSH VPN tunnels. The config handles a MULTIDOMAIN scenario with FreeSWITCH as multi tenant media server. The situation I am facing is that when a REGISTERED user calls in through one of the SSH tunnels to the corresponding listening IP, Kamailio does not seem to source the INVITE that goes to FreeSWITCH from that IP since on FS I use "destination_field=network_addr" to try to apply different dialplan rules per domain and I see the call on FS matching a non corresponding dial plan entry sourced with an IP of a different SSH tunnel. Do I have any other option to send the call to FS using some other field to match to my convenience? I hope the description is clear enough, otherwise I could elaborate if required. Your input is highly appreciated. Regards, Luis -- O: 4000-1020 C: 6040-3624

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Kamailio NAT traversal
by Spencer Thomason 17 Aug '12

17 Aug '12

Hello, I'd like to use Kamailio in from of FreeSWITCH to handle NAT traversal. Is there a way I can allow freeswitch to handle all auth but store the registration in usrloc as I need to send an options ping to the endpoints? My thought is something like this: natted endpoint -> kamailio -> freeswitch If the response is 200OK, save the registration. Thanks, Spencer

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Accessing received after lookup()
by DanB 17 Aug '12

17 Aug '12

Hey All, I was wondering if anyone could point me to the right direction on the following issue: I use registrar with path to store contacts after main proxy. There I have properly stored received db field (original address of the NAT router). When I query the registrar, I get the user contact details (natted ones) in 302 redirect. However at this point I cannot access received avp (or I did not find a way yet, except calling reg_fetch_contacts which I would prefer not to since it doubles the work lookup does). Is there any catch which could save me in this scenario? After loopkup() is there any pseudovariable which I can inspect to find out user's contact data? Any other way to extract received contact data out of contact info? Thanks in advance for any kind of tip! DanB

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sms module & IMS
by Oleksandr Shchirskyi 16 Aug '12

16 Aug '12

Hi, I'm using OpenIMSCore based on the SER. At the moment I try to add SMS-GW to it. I've found, that SER has sms module, and I tried to use it. But, unfortunately, I couldn't make it work. It's not very clear for me how SIP MESSAGEs can be routed to the sms module. This module works not as application server (or I'm wrong?) At the moment I have such configuration in the scscf.cfg: ============================== modparam("sms","modems","Nokia [d=/dev/ttyACM0;b=9600]") modparam("sms","networks","D1[m=10]") modparam("sms","links","Nokia[D1]") modparam("sms","domain","open-ims.test") modparam("sms","max_sms_parts",3) modparam("sms","use_contact",1) # main routing logic route{ if(method=="MESSAGE"){ sms_send_msg_to_net("D1"); } ... } ============================== As a hardware GSM gateway my cell phone is using. As I see, nothing happens when s-cscf processes SIP MESSAGEs. I don't see that these messages are forwarded to the sms module, or smth like that. Final question - is it possible to use this module as IP-SMS-GW for the OpenIMSCore? And how? I would be very appreciated for any help. Thank you in advance. -- Oleksandr Shchirskyi | Software Testing Engineer GlobalLogic Inc. | Innovation by Design ARGENTINA | CHILE | CHINA | INDIA | ISRAEL | UKRAINE | UK | USA Office: +044.492.96.95, (ext. 4296) www.globallogic.com

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Suggestions for time utils
by Andreas Granig 16 Aug '12

16 Aug '12

Hi, I'd like to implement a couple of helper functions for time handling, e.g. checking day of week, day of month etc. from within the kamailio config file. What would you prefer, a new module ("timeutils" maybe?) or adding it to cfgutils (there are already time-based functions there like sleep and usleep)? The idea is to implement time based call-forwards, and an approach could be to provision various time-related values in usr_preferences table, and then check it in the config. For example, when doing call-forwards from Monday to Friday only, I could put this into usr_preferences: attribute: cf_weekday value: [1, 2, 3, 4, 5] (each entry is a separate row in usr_preferences) And in kamailio config, I'd call this: avp_db_load(...); if(is_weekday("$avp(s:cf_weekday)")) { do CF } So is_weekday would iterate over the entries in the avp list and return true if the weekday at the time of routing matches an entry in the list. A module config param could control whether to use gmtime or localtime for matching. Does this make sense? Suggestions for other approaches? I'd rather prefer to do it directly in config instead of using some external interpreter like lua, python etc. Andreas

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Re: [SR-Users] rtpproxy module issue
by phillman25 16 Aug '12

16 Aug '12

Dear SamyGo Thanks for your response. Yes you're right a folder called rtpproxy.so was left in the directory /usr/local/lib/kamailio/modules_k that had not been updated to the date kamailio was compiled and once i deleted it everything was then ok. I checked in directory /usr/local/lib/kamailio/modules and there i found a new rtpproxy.so folder that was updated on the installation date. Seems like rtpproxy.so in the new version is installed in /usr/local/lib/kamailio/modules and not in /usr/local/lib/kamailio/modules_k. Is that correct? Well everything is working ok now! Thanks for your assistance! Regards Phillip > Message: 4 > Date: Thu, 16 Aug 2012 13:29:35 +0500 > From: SamyGo <govoiper(a)gmail.com> > Subject: Re: [SR-Users] rtpproxy module issue > To: "SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - > Users Mailing List" <sr-users(a)lists.sip-router.org> > Message-ID: > <CAJUJwtjB7fmm1pa60wJMLPPte= > Qu_AeZ1z2aqysQaZch_Pb+dQ(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > Though not an expert, I got few things in mind for your case. In the > upgrade process the modules folder remain the same ? right ! if that is so > is there any chances that the new installation skipped installation of > newer rtpproxy module and hence the old version rtpproxy module could've > been left in place. That could be a reason for not identifying the older > module. > This whole speculation could be wrong if the newer version supports the > older version modules. > > BR > Sammy > > > On Thu, Aug 16, 2012 at 10:56 AM, phillman25 <phillman25(a)gmail.com> wrote: > > > Dear List > > > > I have just upgraded from kamailio V3.2.2 to kamailio V 3.3.1 > > However, when trying to start kamailio its giving me the below error: > > > > > > ERROR: <core> [sr_module.c:572]: ERROR: load_module: could not open > module > > </usr/local/lib/kamailio/modules_k/rtpproxy.so>: > > /usr/local/lib/kamailio/modules_k/rtpproxy.so: undefined symbol: > qm_realloc > > : <core> [cfg.y:3591]: parse error in config file > > /usr/local/etc/kamailio/kamailio.cfg, line 245, column 12-24: failed to > > load module > > > > > > Does anyone know why rtpproxy module cannot be loaded? > > > > > > This is the output of ldd /usr/local/lib/kamailio/modules_k/rtpproxy.so: > > > > > > > > shell-init: error retrieving current directory: getcwd: cannot access > > parent directories: No such file or directory > > linux-gate.so.1 => (0x00276000) > > libkmi.so.1 => /usr/local/lib/kamailio/libkmi.so.1 (0x00b64000) > > libkcore.so.1 => /usr/local/lib/kamailio/libkcore.so.1 > (0x00768000) > > libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00277000) > > /lib/ld-linux.so.2 (0x00114000) > > > > > > > > Regards Phillip > > > > _______________________________________________ > > 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 > > > > >

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Is Route Header in SIP Invite Mandatory?
by Apoorv Khare 16 Aug '12

16 Aug '12

Hi All, Does Kamailio has a mandatory requirement for SIP Invite to have Route header? Although RFC-3261 doesn't have. My requirement is to take out route header from the client if I do that I don't see PRACK being send out from Kamilio to Media GW which causes call drop eventually in 15sec. Any thoughts.......... BR, Apoorv

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rtpproxy module issue
by phillman25 16 Aug '12

16 Aug '12

Dear List I have just upgraded from kamailio V3.2.2 to kamailio V 3.3.1 However, when trying to start kamailio its giving me the below error: ERROR: <core> [sr_module.c:572]: ERROR: load_module: could not open module </usr/local/lib/kamailio/modules_k/rtpproxy.so>: /usr/local/lib/kamailio/modules_k/rtpproxy.so: undefined symbol: qm_realloc : <core> [cfg.y:3591]: parse error in config file /usr/local/etc/kamailio/kamailio.cfg, line 245, column 12-24: failed to load module Does anyone know why rtpproxy module cannot be loaded? This is the output of ldd /usr/local/lib/kamailio/modules_k/rtpproxy.so: shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory linux-gate.so.1 => (0x00276000) libkmi.so.1 => /usr/local/lib/kamailio/libkmi.so.1 (0x00b64000) libkcore.so.1 => /usr/local/lib/kamailio/libkcore.so.1 (0x00768000) libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00277000) /lib/ld-linux.so.2 (0x00114000) Regards Phillip

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Debian packages still installing 3.3.0
by DanB 16 Aug '12

16 Aug '12

Hey Guys, Not sure if important, but what I noticed is that the latest debian stable as well as latest 33 packages, they both install still kamailio 3.3.0. In order to get 3.3.1 I needed to use nightly build packages. Is this what is desired? Thanks, DanB

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Kamailio and ACME
by Fatima Chahrour 15 Aug '12

15 Aug '12

Sent from iPhone

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