[asterisk-users] Encrypting the Conversation

[Raymond McKay]

>> Hi,
>> Is it possible to encrypt the conversation between two parties on SIP,IAX
>> or
>> ZAP channels?
>
> Sure, setup a VPN.
>
> You can get a Linksys VPN router for less than $100 and run whatever
> protocol you like over your VPN.

Agreed.  I have seen and heard of a lot of attempts to bring SRTP support 
into Asterisk but the idea of SRTP just doesn't make sense to me.  Asterisk, 
and VoIP servers in general, are meant to be communications services not 
security services.  In my mind at least, it would seem to make sense to let 
security hardware such as a router or firewall handle such tasks as 
encryption and let the phone server handle what it does, signaling and 
transcoding.  Otherwise, you end up with a device that is not ever going to 
be optimized for security, handling your security.  On top of that, you also 
are reducing the level of scalability you can achieve on the phone server by 
adding yet another chore to its duty roster.

Regards,


Raymond McKay
President
RAYNET Technologies LLC
http://www.raynettech.com
(860) 693-2226 x 31
Toll Free (877) 693-2226