[asterisk-users] Could two Asterisk servers connect through VPN

[Tim Panton]

On 7 May 2007, at 19:51, Gordon Henderson wrote:

> On Mon, 7 May 2007, Tielin Xu wrote:
>
>> Hi list:
>>
>> Has anyone done to set up two servers in different remote offices
>> through VPN
>> in order to get the VoIP communication?
>
> Yes it will work, but depending on your hardware you might be  
> better off not using the VPN and just using an IAX trunk over the  
> public Internet (unless you're really paranoid about someone  
> listening in)
>

Even if you are paranoid, you can still just use IAX, set  
'encryption=yes' at both ends
and IAX will encrypt the calls for you. There is a bandwidth  
overhead, but it is
probably less that that of a VPN.

Note, the calling/called numbers are still passed in the clear over  
encrypted IAX,
so you are still vulnerable to traffic analysis.



Tim Panton

www.mexuar.net
www.westhawk.co.uk/