11-24-93
        - - - - - - - - - - - - - - - - - - - - - - - -
              Normal INIT for modems on a PC AT&F&C1&D2
     Sometimes, even though the modem seems to get a good connect  (usually
with  hi-speed modem) it does not actually make the  connection  correctly.
(It  may  be the OTHER end making the error). Often if you use one  of  the
(prefix)  strings to force that connect speed the connection will  be  made
'solid'  on  both ends.

                 V.32 / V.42bis Dialing Prefixes

     The  normal dial Prefix is ATDT. If the number  is  423-1563 then   it
sends ATDT4231563 to the modem, which then  dials,   and connects. This  is
using  auto-speed  (baud)  negotiation as well   as  negotiating   Protocol
(V.42bis, MNP etc.). Some modems/software without V42bis/MNP you  will call
do  NOT  like  this. Use a prefix w/&Q6 in it. Listed  are  alternate  dial
Prefixes you may use.

AT&Q5F0DT           :negotiates SPEED and Protocol (default)
AT&Q6F0DT           :negotiates SPEED only

To force a fixed speed, just change the F0 in one of the above strings, to
F1 (300), F4 (1200), F5 (2400), F8 (9600), F10 (14,400)

NOTE 1: The above strings are using buffering which allows the computer  to
have  a higher speed than the modem. If you still have trouble try  &Q0  in
place of &Q6 and set your computer speed the same as the modem speed.

NOTE  2: I discovered when a user couldn't connect to a 300bps modem,  that
if  I  did AT&F (set &C0&D0) before using the dial prefix,  then  it  would
connect. This is worth a try on stubborn 1200bps modems too.

              Connect result messages / modem speed

S95=44   gives  you full result messages with CONNECT  (modem  to  computer
speed).  If  you need CONNECT (modem to  modem) speed the same  as  CARRIER
(modem  to modem) use S95=45. When running a BBS, try  S95=3 and  you  will
get only CONNECT(carrier) message, with \ARQ for error correcting   modems.
Always  set  your  'speed'  in your program  to   the  highest  permissable
computer  -  to - modem speed (check your manual). The  V.32xx  or  V.42bis
modem will take care of modem to modem speed.


                                   Don Hinds - Zoom Tech
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