Yes, I've done it with Gizmo Project, which speaks SIP. Place your call to
When I do this from my home LAN, the voice packets actually go direct
between my laptop and my VoIP adapter. Pretty cool.
Thanks. I was worried the problems I had trying it out before was some sort
of security feature to make sure calls went through Speakeasy. But instead
it appears I just wasn't doing things correctly. I won't be able to play
with this again for a while yet, but since it is possible I'll take
another look when I get a chance.