50
Register Default
Function
S19
0
Sets the duration, in minutes, for the
inactivity timer.
The timer activates when
there is nodata activity on the phone line; at
time-out the modem hangs up. S19 = 0
disables the timer.
S20
0
Reserved.
S21
10
Sets the length, in 10-millisecond units, of
breaks sent from
the modem to the computer;
applies to MNP or V.42 mode only.
S22
17
Stores the ASCII decimal code for the
XON character.
S23
19
Stores the ASCII decimal code for the
XOFF character.
S24
0
Reserved.
S25
20
Sets the duration, in hundredths of a
second, that DTR
must be dropped so
that the modem doesn’t interpret a random
glitch as a DTR loss. (Most users will want to
use the default; this register is useful for
setting compatibility with older systems
running under
older operating software.)
S26
0
Reserved.