[OpenSIPS-Users] rtpproxy

[Jiang Jinke]

Dear michel,

Of course your softphone can have STUN/TURN function as an option to
the user. This is a client side NAT traversal implementation. But it
can not traverse all kinds of NAT ( for example: symmetric NAT).
But server side implementation such as the rtpproxy or mediaproxy will
deal with the symmetric NAT problem correctly.

Client side NAT traversal methods can lower the loading of the server,
but in today's network most of the clients are behide NAT,
and it seems more symmetric NAT are using today.

The OpenSIPs / rtpproxy does fix those NAT issues if your softphone
doesn't. But If your softphone fix that already, the server side will
do nothing to the softphone.

Client function & server function is similar and they both are trying
to dealing with the NAT problem.

Regards,
Jinke Jiang

On Wed, Sep 16, 2009 at 5:16 AM, michel freiha <michofr at gmail.com> wrote:
> Dear All,
>
> I'm developing a Softphone from scratch and I'm using PJSIP sip stack....I'm
> using OpenSIPS as proxy server with rtpproxy...
> My question is:
>
> Can rtpproxy handle the NAT traversal issue without intervention of a
> standalone STUN/TURN/ICE solution or I should have my own STUN/TURN/ICE
> installed on a standalone server that will take care about NAT Traversal?
>
> Regards
>
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