<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
if both phones are behind same nat and no nat processing enabled in
kamailio.cfg, the audio should work fine. Be sure there is no ALG in
your nat router or firewall. The best is to look at singaling, on
the server you can use:<br>
<br>
ngrep -d any -qt -W byline "sip" port 5060<br>
<br>
If the phones are behind nat, you need to enable nat traversal in
kamailio config by defining WITH_NAT, install it and configure to
listen for control commands on the socket specified to rtpproxy
kamailio module parameters (see the comments at the top of default
kamailio.cfg).<br>
<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 29/04/15 05:03, Todd R. wrote:<br>
</div>
<blockquote cite="mid:BLU173-W347357B5F9930B57307DDCCDD70@phx.gbl"
type="cite">
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 12pt;
font-family:Calibri
}
--></style>
<div dir="ltr">This is my first go round' with Kamailio but I have
been messing with it off and on for a few weeks.
<div><br>
</div>
<div>Running latest version on latest CentOS 7.x.</div>
<div><br>
</div>
<div>Kamailio installed on VM with public IP in one location, 2
SIP phones behind same NAT, both registered to Kamailio fine.</div>
<div><br>
</div>
<div>I can call one phone to the other and it rings and I can
answer it but get one way audio most of the time, sometimes no
audio at all.</div>
<div><br>
</div>
<div>I just did a standard install with MySQL and no other
modules.</div>
<div><br>
What am I missing, do I need RTPPROXY? Will Kamailio allow
extension to extension calls from/to phones behind NATS
without any additional modules?</div>
<div><br>
</div>
<div>I tried installing it with yum, it installed but it won't
start. If I need it, I will remove the YUM version and install
from source or GIT or some other method.</div>
<div><br>
</div>
<div>I do NOT want any media passing through this server, that's
one big reason I am learning something OTHER than Asterisk
which I am very familiar with.</div>
<div><br>
</div>
<div>I see all these RTP modules, music on hold etc but I
specifically don't want to install anything that causes media
to pass through the box.</div>
<div><br>
</div>
<div>Finding the learning curve much steeper than Asterisk back
in the day and a REALLY tough time find step by step examples
to get started, especially on CentOS.</div>
<div><br>
</div>
<div>I bought the draft of the book and it will be a great
resource but at the moment, it's not helping me get started or
get my first instance up and running.</div>
<div><br>
</div>
<div>I need to add SIP trunks to originate and terminate calls
but I can't even think about that since I can't even get audio
on extension to extension calls yet.</div>
<div><br>
</div>
<div>I also see that Kamailio fails to startup at boot because
it can't connect to MySQL, when I restart Kamailio it starts
fine. I think the issue is that Kamailio is trying to start
before MySQL is up and running, I guess I can do a delayed
start of Kamailio to fix that later.</div>
<div><br>
</div>
<div>Any help would be appreciate by this NEWB.</div>
<div><br>
</div>
<div>Thanks in advance for any assistance.</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a>
<a class="moz-txt-link-freetext" href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a class="moz-txt-link-freetext" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a></pre>
</body>
</html>