Starting with this edition, the "one size fits all" mm224 dialing
subroutine in the phones.t file has been retired. One size doesn't fit
all modems with the execellence demanded of Professional-YAM. (Just be
thankful you don't have to get by with one or two dinky initialization
strings!)

The new version uses a modem independent "adial" subroutine that
understands alternate numbers and other aspects that are shared by most
modems. The "adial" routine then calls a modem specific "dialnum"
subroutine contained in a specified file. So, to change modems one merely
points to the appropriate dialer file. The dialer files are distributed
in DIALERS.ZOO (DIALERS.ZIP).

set mcommand "@gosub adial":: Top level dialing subroutine
set MODEM "hu96.t":: Modem specific dial FILE

The old forms are shown for comparison:

::set MODEM HV96
::set mcommand "@gosub mm224"

Modem specific dial routines are provided in the following files, whose
names correspond to the old logical names:
generic.t hst.t hv96.t hu96.t mm224.t mm224e.t mmv32.t tb.t

The new arrangement supports "call init" as an easy way
to access the modem specific initialization script. Each
modem specific file should contain a modem initialization
subroutine "initmodem" which is called indirectly by "init" in
the main phones.t. A bit of object oriented structure as it were.

Generic.t contains if statements for all the modems supported by
the mm224 subroutine. It may be used as a base for writing new
modem specific scripts if a script for a similar modem is not available.

New dialers:
t1600.tTelebit T1600 v.32/v.42
hu96.tHayes Ultra Smartmodem 9600 v.32/v.42
mmv32.tMultitech V32