Anyone who uses the BT 'Call Waiting' facility and also uses a modem
on the same phone line will probably have discovered that if you get a
Call Waiting beep while your modem is active, the modem is liable to
drop the line.

The GCW program can be used with any specified device and unit,
'serial.device' unit 0 being the default argument.  Usage and
arguments are explained in the doc file which also explains how to use
Call Waiting commands via a modem.  The source in C is included.

Please note that this program is only suitable for use in the UK on
British Telecom lines, or - for example - on a BT link to Mercury.


 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 8305   13952  59.5% -lh5- ac00 Mar 14  1995 gcw
[generic]                 2340    7329  31.9% -lh5- 4768 Mar 14  1995 GCW.c
[generic]                 2119    4549  46.6% -lh5- 3009 Mar 14  1995 GCW.doc
[generic]                  102     124  82.3% -lh5- 1b54 Mar 14  1995 GCW.lnk
[generic]                  152     261  58.2% -lh5- 0cce Mar 13  1995 SCoptions
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         5 files   13018   26215  49.7%            Mar 15  1995