Michael Westfall's ttylink Daemon
ttylinkd - a ttylink daemon for Linux.
Michael Westfall, N6KUY, <mwestfal@.csci.csusb.edu>
A split screen terminal program that listens on the ttylink port and accepts incoming connection requests.
Seems to work fine.
This is a standalone program that does require you to change the configuration of your system at all. If you have root access on your machine then you run the program in a VT or in an XTerm and it will clear the screen and wait for an incoming connection on port 87 (ttylink). When a connection is received it will provide you with a split screen display with which to communicate with the calling person.
Where and How to obtain it
You can obtain ttylinkd from: sunsite.unc.edu or ftp.ucsd.edu.
Unknown, presumed freely distributable.