asterisk users - Oct 2005 - nat and wandering phones

Hi all I'm looking for a solution to this problem.

*box--------internet-----------nat-----------softphone

We have potential customers who will be travelling the world with 
laptops/pda's.
They need to be able to connect to the asterisk box via ip wherever they 
are and will have no control over nat whatsoever.

I have read that STUN offers this service, but cannot picture in my mind 
how this works, especially with no port forwarding on the nat (I mean, 
how the hell do packets traverse the firewall to find the end device).

Any suggestions welcome

Cheers Bails

I do this all the time. I simply use the Firefly IAX2 soft phone and
don't bother with SIP at all. I forward port 4569 to my * box and it
just works.

Michael Graves

On Tue, 11 Oct 2005 14:30:36 +0100, bails wrote:
>Hi all I'm looking for a solution to this problem.
>
>*box--------internet-----------nat-----------softphone
>
>We have potential customers who will be travelling the world with 
>laptops/pda's.
>They need to be able to connect to the asterisk box via ip wherever they 
>are and will have no control over nat whatsoever.
>
>I have read that STUN offers this service, but cannot picture in my mind 
>how this works, especially with no port forwarding on the nat (I mean, 
>how the hell do packets traverse the firewall to find the end device).
>
>Any suggestions welcome
>
>Cheers Bails
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Michael Graves                           mgraves@pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves@mstvp.com

o713-861-4005
o800-905-6412
c713-201-1262
fwd 54245

Use virbiage IAX2 softphone.    https://www.virbiage.com/download.php

Since it uses IAX2 it is very NAT friendly.

Thanks,
Steve    


> Hi all I'm looking for a solution to this problem.
> 
> *box--------internet-----------nat-----------softphone
> 
> We have potential customers who will be travelling the world with 
> laptops/pda's.
> They need to be able to connect to the asterisk box via ip wherever they 
> are and will have no control over nat whatsoever.
> 
> I have read that STUN offers this service, but cannot picture in my mind 
> how this works, especially with no port forwarding on the nat (I mean, 
> how the hell do packets traverse the firewall to find the end device).
> 
> Any suggestions welcome
> 
> Cheers Bails