Date   : Sat, 26 Nov 1983 12:22:07-PST
From   : Mark Crispin <MRC@SU-SCORE.ARPA>
Subject: Re: KERMIT and TAC

In my humble opinion, any host which fails to hang up the connection
when the user logs out should be disconnected from the ARPANET until
they fix their software!  @ B I S is the means of getting into binary
mode on the TAC, and no host should make that mode useless.  Disabling
the TAC intercept character is necessary if you want true binary I/O.
Hosts ought to work well enough so this functionality is usable.