Re: [Ekiga-list] ekiga problem on 3g connection (ubuntu 9.10)

[Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>]

Dave Elliott wrote:
> When I attempt to make a call with Ekiga, I get no audio and am
> immediately connected.  I would like to use Ekiga as the client for SIP
> accounts with two providers: sipgate.com (US) and localphone.com.  I'm
> running 32-bit ubuntu 9.10.  My only internet connection is 3g mobile
> broadband.  In case it's relevant, I'm living in mexico and using Telcel
> as my 3g provider.
> 
> I've read the Ekiga wiki on nat traversal.  I don't understand all of
> the information provided there, but it does not seem to provide a
> solution for me.  I'm behind a nat firewall with a private IP address. 
> Ekiga identifies this as a symmetric NAT.  Obviously, I have no ability
> to configure port forwarding or otherwise alter the NAT, since it is
> administered by my ISP.

If you do not have the possibility to parameter your router, or your
NAT, then you are out of luck for video on ekiga.  If you wish only
audio, then you can use a an audio proxy, such as iptel.com (I think it
is free, but I am not sure).  If you wish to understand what happens,
read
http://wiki.ekiga.org/index.php/Understanding_NAT/firewall_issues_with_SIP_clients_%28eg_ekiga%29

> The puzzling part for me is that using a different softphone on windoze
> 7 (X-Lite), I can make and receive calls through localphone.  I would

The only solution I see is that x-lite already uses an audio proxy.

> very much prefer to use Ekiga on Ubuntu.  Since the above mentioned
> package of software+OS+VSP works behind my ISP's NAT firewall, I'm
> hoping it is possible to configure Ekiga+Ubuntu to also work with
> localphone on this connection.  Suggestions?  If it's not possible, that
> answer is also helpful to me - I won't spend more time pursuing this and
> will look into alternatives.
> 
> Thanks,
> Dave
> 
> PS I am not very knowledgeable about networking or linux, but am
> learning.  I'm willing to read other sources and follow step-by-step
> instructions.

-- 
Eugen