ECU (Extended Call Utility) is a personal and research communications
program originally written for users of SCO UNIX V.3.2/386 and XENIX V
on 80286 and 80386 systems. Support for other systems has been added
and further porting is possible with "minor" effort to other systems
based on or similar to UNIX System V.
ECU provides the classic terminal communications facility of passing
keyboard data to a serial line and incoming data to the computer video
display. In addition, a dialing directory, a function key mapping
feature, and session logging are available.
A very flexible procedure (script) language is also incorporated to
automate many communications tasks. In addition to augmenting
interactive tasks, by using shell scripts and ECU procedures, ECU can
perform batch-style communications sessions in an entirely "unattended"
fashion.
ECU presents to the host a flexible "ANSI" terminal type, accepting any
valid video control sequences from MS-DOS or SCO documentation as of
late 1990. It also fares well, though imperfectly, with Sun and VT-100
in-band video control sequences. Standards are great: everybody should
have one, especially if they call it "ANSI."
The program supports almost any local terminal (console) which can be
described in a termcap database entry. For more information, refer to
"Supported Terminals."
ECU supports numerous file transfer protocols: as of this writing,
XMODEM, XMODEM/CRC, XMODEM-1K, YMODEM/CRC Batch, ZMODEM/CRC-16,
ZMODEM/CRC-32, Kermit and SEAlink are supported.
ftp://tsx-11.mit.edu/pub/linux/sources/usr.bin/Communications/
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