Trust External ISDN 128 Manuel D'utilisation page 23

S5 0-127. The "backspace" character. The default is 8 (<BS>).
S12 0-255. Number of milliseconds for escape characters. The
default is 50.
S14 This register is bit-mapped for use with various options. The
default is 138.
Bit 0 - Ext.baud rates
0 -
1 -
Bit 1 - Command echo (ATE Command)
0 -
1 -
Bit 2 - Result codes (ATQ Command)
0 -
1 -
Bit 3 - Verbose mode (ATV Command)
0 -
1 -
Bit 4 - Abort code
0 -
1 -
Bit 5 - Not Used
Bit 6 - Not Used
Bit 7 - Originate / Answer
0 -
1 -
S21 This register is bit-mapped oft use with various options. The
default is 19.
Bit 1 -0- Not Used
Bit 2 - CTS behaviour
0 -
1 -
Bit 4 - 3 - DTR behaviour
00 -
01 -
10 -
Bit 5 - DCD behaviour
0 -
1 -
Bit 6 -DSR behaviour
0 -
1 -
Bit 7 - Reserved
Communicator ISDN 128 External
38400
19200
no echo
echo
enabled
disabled
terse
verbose
On
Off
answer
originate
CTS on
CTS track RTS
DTR ignored
reserved
DTR falling terminates call
DCD on
DCD on after connection
DSR on
DSR on after Connection
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