Cryptic is the Zimmermann Real-time Transport Protocol, not me. :)
SIP, as Liam already wrote, is a well known term in the world of VoIP.
I just don't get it that you haven't used it so far. :)
Well, I use commandline and no desktop, only a WM. So I guess you could
say that I am obsolete.
So, I guess that I can't talk to my Skypies:-(
Ranjan
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