sr-users February 2018

sr-users@lists.kamailio.org

90 participants
109 discussions

rtpproxy - no media connection
by Steve 05 Feb '18

05 Feb '18

Dear sr-users, I am trying to set up a simple Kamailio server with rtpproxy on the same host computer, behind a NAT router. “Run your own Skype-like service” is my set-up guide, but I’m using Kamailio version 5.1 so I modified the config files that came with the download. My problem is that SIP clients can register over the internet via TLS encryption with the server and establish a call session connection, but the ZRTP media connection is not being made. Once the call session connection is made, both clients send out UDP packets to each other, but neither receives them—the media traffic is one way and being dropped somewhere. I’ve tried different rtpproxy start settings. If I start the rtpproxy service with “sudo /etc/init.d/rtpproxy start” then it uses the default “unix:/var/run/rtpproxy/rtpproxy.sock”. I’ve also tried starting with “sudo rtpproxy –l /my_public_ip/ –s udp:localhost:7722” which then asks for either –F (superuser) or –u (user). I’ve tried it both with options “–F” and “-u kamailio kamailio”. All the variations tried so far have the same result as noted above. The server behind the router is in a DMZ zone that bypasses the router firewall. Is there anything in the user-list archives that addresses this issue? Or some likely place to start troubleshooting the problem? Any suggestions would be greatly appreciated. Thanks in advance. Steve --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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IMS (ng-voice vs github)
by Amar Tinawi 04 Feb '18

04 Feb '18

Hello Dears, can you please tell me what are the differences between the github version of ims modules and the ng-voice modules introduced by Mr Carsten repo ? Thanks in advance

2 1

Fosdem dinner
by Daniel-Constantin Mierla 03 Feb '18

03 Feb '18

Hello, in the past 10 years or so, many of us met at Fosdem conference in Brussels (the edition this year happens during February 3-4) and had a dinner on Saturday evening. I know already couple of people from community that will go there, so the question is if there is any interest to organize again such event. If yes, it will be again on Saturday, on the evening of the 3rd of February. At the past editions, it turned into an all-RTC dinner, but we can consider to have it alone again (eventually with few other invited friends), if there are too many or people want a smaller meeting. Reply this week if you want to join, so we can estimate how many seats we need and have enough time to find a place that can accommodate us. More about Fosdem can be found at: - https://fosdem.org There is a devroom on Sunday with topics covering real time communications. I will have a presentation there. Cheers, Daniel -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - March 5-7, 2018, Berlin - www.asipto.com Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com

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SDP Rewrite issues
by Steven Meyer 02 Feb '18

02 Feb '18

Our topology is: Client <> Client Router <> Internet <> Firewall (NAT) <> Kamailio <> FS Unfortunately, when enabling SDP Rewrite: fix_nated_sdp, 0x08, it rewrites packets to the firewall external IP, not the client router external IP. Right now we have to do a local NATed IP on each phone.

1 0

Routing based on A and B numbers
by Grant Bagdasarian 02 Feb '18

02 Feb '18

Hi, Which module would be best suited for routing calls based on A and B numbers? We're currently using the LCR module, with some additional htables to add this functionality, but I was wondering if there is a module which does exactly this? Or perhaps a combination of modules? Regards, Grant Bagdasarian Senior Developer +31765727054<tel:+31765727054> cm.com<https://cm.com> [cid:image001.png@01D39C36.945A76C0]

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Distributed Registrations.
by Володимир Іванець 02 Feb '18

02 Feb '18

Hello! Yesterday I read email conversation "Distributed Presence between Multiple Kamailios" where it was suggested to use Presence module with new dmq parameter. So was wondering if someone was thinking about approach to share registrations between multiple Kamailio servers without using database? Thanks!

2 1

Contact Header need update?
by Duarte Rocha 02 Feb '18

02 Feb '18

Greetings, My proxy does some number normalization in order to guarantee E164 numeration. It also verifies for valid Calling Numbers and replaces them if needed. In order to this, i'm updating the $fU pseudo-variable. Should i update the "Contact" Header too? I've made some testing and i can get calls to work with keeping the Contact intact and changing it to the new number. What is the most correct approach? Cheers, Duarte Rocha

1 0

Distributed Presence between Multiple Kamailios
by SamyGo 01 Feb '18

01 Feb '18

Hi, I'm working on multiple Kamailios that have users distributed evenly among them, I now need to enable presence in those Kamailio boxes. The scenario is a mesh where any user may have subscribed to BLF of other user registered & calling on any other proxy. What modules can help me achieve this? can this be done without creating a new Presence-Node for the whole environment? Hope to get some suggestions on how experts here have done this. Looking forward to positive response. Regards, Sammy

3 5

Case insensitive regexp in textops::search() function
by Andrey Deykunov 01 Feb '18

01 Feb '18

Hi, I have an htable containing some black list words (i.e. user IDs or phone models). To find matches of the words in every message I use the following script: sht_iterator_start("i1", "black_list"); while(sht_iterator_next("i1")) { if ( search($shtitval(i1)) ) { // do something } } sht_iterator_end("i1"); How can I modify search($shtitval(i1)) to get case insensitive matching? The example below does not work: sht_iterator_start("i1", "black_list"); while(sht_iterator_next("i1")) { $var(re) = $shtitval(i1) + "/i"; if ( search($var(re)) ) { // do something } } sht_iterator_end("i1"); Other possible modifications of $var(re) aren't working too. Thanks, Andrey

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sr-users February 2018