[asterisk-users] Looking for good IAX ATA

[Steve Underwood]

Jeff LaCoursiere wrote:
> 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.
>   
This is hardly rocket science. If you find a stream of a steady 50 small 
packets per second, isn't hard to guess what the contents are. :-)
>   
>> 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
>   

Steve