[Freeswitch-users] send fax via google voice.

[Steve Underwood]

On 03/07/2011 01:08 AM, Madovsky wrote:
> I think it's more hard for a guy to hack your US pstn line if he lives
> in Australia... fax on internet can be hacked from everywhere...
There used to be some truth in that, a long time ago. It ended when 
arbitrary hops of ordinary PSTN calls started to be carried over IP 
networks. When you call from a PSTN FAX to a PSTN FAX you have little 
idea how the call travels. Its the same with phone banking by DTMF, and 
other services where people regularly send sensitive information. Its 
hard to mount a focussed attack on a particular person by trawling 
through fairly arbitrary IP communications, but you can sure harvest a 
lot of interesting material from a long distance these days.

Interestingly, the FAX standards do include security feature options, 
but I've never seen them used. The documentation lacks clarity, and I'm 
not sure how well most T.38 systems would handle them, but they are there.

Steve