[asterisk-users] Looking for good IAX ATA

[Jeff LaCoursiere]

On Sat, 25 Apr 2009, Yahya Mohammad wrote:

>
> On Wed, Apr 22, 2009 at 09:20:05PM +0000, Jeff LaCoursiere wrote:
>>
>> I have been wondering - if you ran your SIP traffic over VPN tunnels, what
>> would the state think of that?  They obviously won't be able to inspect
>> the data to see what is flowing through the tunnel.  Do thye also restrict
>> encrypted traffic?
>
> They can't see the data due to encryption, but they can observe packets'
> traffic patterns, and match them to typical usage by various protocols.
> Bitek ( http://www.bitek.com/index.php?option=com_content&view=article&id=74&Itemid=60 )
> is one company that caters to state ISPs and I've heard their technology
> can guess if voip is being used inside encrypted tunnels.

Yikes!!  I just followed that link and I guess I shouldn't be surprised. 
Big brother is finding all kind of ways to supress information flow.

>
> VPNs are not allowed on residential connections, but it's not really
> enforced, and it does work well with voip. In any case, if an ISP can
> block 95% of VoIP usage, it's good enough for them. It's probably not
> worth the effort to block the remaining 5% tech savvy people.
>

Interesting...

j