Well, there is SRTP/ZRTP. For SIP TLS is wide accepted.
Having a proxy that will add encryption would be nice, but most people
just tunnel VoIP connections over VPN.
On Wed, Sep 09, 2009 at 08:13:53AM -0400, Dave Piscitello wrote:
> I've been away from this topic for a while but am curious.
>
> Has any progress has been made in deploying VOIP without having to use
> underlying security protocols (SSL/TLS or IPSEC) to secure the VOIP
> signaling and media streams?
>
> Are any folks using network edge devices to secure VOIP, e.g.,
> "VOIP-aware" firewall or secure voice proxies? Are you complementing
> these with MAC level encryption from endpoint-to-proxy/endpoint-to-edge?
>
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