NATed solutions with no RTP proxies will depend on the client side, not on the server side
like in Kamailio. Key things to notice: 1 - Private IPs (RFC-1918) will always be proxied
if you don't change the basic template config;2 - Dual NIC servers require a little
bit more knowleadge on Kamailio before you can get it to work properly;3 - Although you
can use some tricky configurations, Kamailio is not a SBC like Asterisk/Freeswitch; Having
said that, RTPproxy is just good. I mean, it is really good! If it is not working, then
you probably have another problem. So the questions are: Are you running your system on
virtual machines? What is your topology? How many NICs do you have? Your Kamailio server
is connected direct to the Internet or behind a firewall? All the above questions can
strongly affect the quality of your calls. Cheers! MoacirFrom: aelsharqawi(a)live.com
To: sr-users(a)lists.sip-router.org; miconda(a)gmail.com
Date: Wed, 20 Mar 2013 02:09:44 +0800
Subject: Re: [SR-Users] NAT & Firewall Issues
Thanks All,
Yes, please if you've an example using nathelper without rtp proxy let us know.
now more than ten days I am trying to get kamailio up & running to bypass NAT &
firewall blocking but I couldn't.
After some research I might create a VPN.
so please if you have any working example for NAT and Firewall let us know.
Regards,
Amr
From: julian_q(a)hotmail.com
To: miconda(a)gmail.com; sr-users(a)lists.sip-router.org
Date: Tue, 19 Mar 2013 11:19:49 -0500
Subject: Re: [SR-Users] NAT & Firewall Issues
Daniel
Do you have a config example using nathelper without rtp proxy?
Regards
Julián
-----Mensaje original-----
De: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] En nombre de
Daniel-Constantin Mierla
Enviado el: martes, 19 de marzo de 2013 10:00 a.m.
Para: Kamailio (SER) - Users Mailing List
Asunto: Re: [SR-Users] NAT & Firewall Issues
Hello,
rtpproxy could bring some delays, as another hop in rtp path. But usually is
not noticeable, unless rtpproxy is on a slow network.
Look at the traffic coming to rtpproxy and going out (with wireshark or
similar tool) to be sure you have delays from rtpproxy.
Cheers,
Daniel
On 3/19/13 8:49 AM, Amr Elsharqawi wrote:
Hello,
I am facing NAT & Firewall problems how I can solve this issue I've
tried RTPProxy but voice quality is bad.
any tutorial, please
Amr
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