[Asterisk-Users] voip encryption options

[snacktime]

On 5/13/05, trixter http://www.0xdecafbad.com <trixter at 0xdecafbad.com> wrote:
> On Fri, 2005-05-13 at 11:10 -0700, snacktime wrote:
> > On 5/13/05, Colin Anderson <ColinA at landmarkmasterbuilder.com> wrote:
> > > >I'm also curious of other solutions that could be bolted onto the
> > > >front end of asterisk to provide encryption
> > >
> > > For LAN---internet---LAN you could just use a VPN tunnel. We use Monowall
> > > from site to site http://www.m0n0.ch/wall/ with IPSec and my Snom's don't
> > > know the difference.
> > >
> > I'm looking for solutions that work when one end of the call is
> > connected to the pstn, and the entire media stream needs to be
> > encrypted.
> 
> Do you mean the voip stream is encrypted to be decrypted from a phone on
> the PSTN?  That will be rough due to the nature of the codecs.  You
> would have to not use any compression, and hope that syncing doesnt blow
> this up when it hits the PSTN.  In short if you do manage to get
> something to work I would question its reliability.

A call originating from the pstn would need to be encrypted before
being sent over the internet to our location.  The primary thing being
that if it goes over the internet, it has to be encrypted in transit.

Chris