TELNET is the program to communicate with other hosts via the Arpanet.
There are several TELNET variations on this system:

	TELNET - Plain old vanilla TELNET, using new TELNET protocol and
		 no display hacking.

	OTN    - Vanilla TELNET, but using old protocol instead of new
		 protocol.

	DTN    - Datamedia simulating TELNET, useful for talking to
		 SCORE, SUMEX, SRI, etc.

	SUPDUP - Special display TELNET to the ITS systems at MIT to
		 be a TV at their systems.

Complete details of the above can be found in the printed Monitor Command
Manual, which is online as MONCOM.BH[S,DOC], with updates in MONCOM.UPD[S,DOC].

For more information about the Arpanet type HELP ARPA or HELP NETDOC, or
talk to the local Arpanet wizard, Mark Crispin (MRC).