Secure telephones

Jack Lloyd lloyd at
Sun Jul 18 13:19:46 PDT 2004

On Sun, Jul 18, 2004 at 08:53:35PM +0100, Dave Howe wrote:

> >That may have just been an artifact of a bad implementation, though. DTLS
> >might be a better pick for securing VoIP. There's also SRTP.
> The strength of a pure VPN solution is that you aren't limited to *just* 
> VoIP - you can transfer files, use whiteboarding, run videoconferencing, 
> support text channels..... even play games :)

Well, nothing stopping you from treating your datagram-based VPN (ie, DTLS) as
an IP tunnel, and doing TCP-like stuff on top of it to handle the IM and file
transfer. Actually I'm working on something rather like that now, which may or
not get finished soon.


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