Marc Horowitz writes: | >> Also How about a half duplex secure voice link for the internet? Heck | >> you could call anyone up if they are logged in and were equipped, crypto | >> optional. | | If you have a Sparc or a DEC, there's a program called "vat" whcih | does this, full-duplex over IP. Unfortunately, I don't remember where | to get it (lbl?), and archie isn't responding. vat is available from ftp.ee.lbl.gov. There's no source at the moment but there are binaries for different architectures. (And the dynamically linked SunOS 4.1.x versions do work for Solaris 2.x) vat is intended for use as a IP multicast multi-user chat program, but I believe that it is useable for point-to-point communication also. Using it for IP Multicast may require kernel patches (depending on your OS). [I have no connection with vat other than I use it for MBONE stuff here at Washington University] -- Bryan D. O'Connor Internet: bryan@fegmania.wustl.edu Software Engineer, wuarchive development UUCP: ...!uunet!wuarchive!bryan Office of the Network Coordinator BITNET: bryan@wunet.bitnet Washington University in Saint Louis Phone: +1 314 935 7048