[SR-Users] Kamailio RTP Proxy Questions

[Austin Einter]

Dear Carsten
Thanks for reply.

I did not install rtp proxy .  I just installed kamailio after that I was
able to run both kamailio and rtp proxy.
I am surprised, I thought after installing kamailio 3.1.5, I will be able
to execute both kamailio and rtpproxy.
Not sure it it was installed in my lab pc by somebody else previously.

First of all I would like to check if the scenario I am talking of is a
right case to use Kamalio or not.

1. I will be running the sip softphones in private/public network.

2. I want to run kamailio proxy in public network (as an intermediate
proxy).

3. I will hav a main proxy in public detwork.

What I want is all my signalling and RTP packets should pass through
intermediate proxy (that is Kamailio only).

For this purpose do you suggest Kamailio or someother proxy/b2bua.
I am able to force SIP packets through kamailio proxy (by use of route stuff
in softphone).

My main concern is when INVITE message pass through Kamailio, will Kamailio
proxy change the IP address of phone present in SDP to self address so that
media packets from called party side will come to kamailio proxy.

Same concern otherway. Like when 200 OK to INVITE passes through kamailio,
will kamailio change IPaddress in SDP to self IP, so that media packets from
calling side will reach kamailio.

Kindly help me to choose right proxy or should I look for b2bua.

Thanks
Austin




On Fri, Oct 7, 2011 at 3:05 PM, Carsten Bock <carsten at ng-voice.com> wrote:

> Hi,
>
> did you also install the RTPProxy itself? It is an addon to Kamailio and
> not a part of Kamailio.
> You find the RTPProxy here: www.rtpproxy.org
>
> Carsten
>
> 2011/10/7 Austin Einter <austin.einter at gmail.com>
>
>>   Hi
>> I downloaded 3.1.5 Kamalio source, did make and install. Tried to run, and
>> tested few basic scenarios, everything working fine.
>>
>> I have a main proxy, want to use kamailio as intermediate proxy and my
>> requirement is all RTP packets should pass through machine in which Kamalio
>> proxy is running. I beleive RTP Proxy I can run in same machine where
>> Kamailio proxy is running with proper configuration .
>>
>> For this I am referring,
>> http://nil.uniza.sk/sip/nat-fw/configuring-nat-traversal-using-kamailio-31-and-rtpproxy-server
>>  page.
>>
>> In one of the steps it says "So, if we are using the Rtpproxy server with
>> default configuration, we have to open /etc/default/rtpproxy file and
>> uncomment following line regarding of udp socket, that will be sued for
>> interconnection:".
>>
>> I tried to search rtpproxy configuration file, could not locate.
>> While making and installing Kamalio proxy, the commands I used "make
>> prefix=/usr/local/ all  and make prefix=/usr/local/ install".
>> Can somebody point me why rtpproxy config file is missing.
>>
>> Also the link I am refering to is correct or wrong one.
>>
>> Best Regards,
>> Austin
>>
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>>
>
>
> --
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>
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>
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