QMODEMjr command keys / use ALT key with the following keys:
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A   strip/convert table screen    N    not used
B   not used                      O    change directory path
C   clear screen                  P    change baud rate, ect.
D   dialing directory             Q    redial
E   echo on/off                   R    jump to DOS
F   options menu                  S    split screen
G   ansi on/off                   T    screen dump
H   not used                      U    not used
I   program information           V    file viewer
J   key definitions               W    directory viewer
K   not used                      X    quit program
L   logged drive                  Z    not used
             
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delete all message strings:  CONNECT, BUSY, NO CARRIER, ect. 
             
baud rate 300  /  data bit 8  /  parity N  /  stop bits 1
             
PCjr internal modem initialization string:  ^N F 4  (note spaces)
             
PCjr internal modem pulse dial string:  ^N D W I  (note spaces)