3Com 56K Command Reference Manual page 184

I-2 A I: S-R
PPENDIX EGISTERS
Register Default Function
S10 7 Sets the duration, in tenths of a second, that the Business
Modem waits after loss of carrier before hanging up. This
guard time allows the Business Modem to distinguish
between a line hit, or other disturbance that momentarily
breaks the connection, from a true disconnect (hanging up)
by the remote device
S11 70 Sets the duration and spacing, in milliseconds, of dialed
tones.
S12 50 Sets the duration, in fiftieths of a second, of the guard time
for the escape code (+++) sequence.
S13 0 Bit-mapped register. See Chapter 1, Using the AT
Command Set, for instructions about how to set
bit-mapped registers.
Bit
0
1
2
3
4
5
6
7
S14 1 Bit-mapped register. (See Chapter 1, Using the AT
Command Set, for instructions about how to set
bit-mapped registers.)
Bit
0
1
Value Result
1 Reset when DTR drops.
2 Reverse normal Auto Answer
operation: On incoming RING, enter
Originate Mode and look for an
answer tone.
4 Disable 250 ms pause before result
code display.
8 On DTR signal, autodial the number
stored in NVRAM at position 0.
16 At power-on/reset, autodial number
stored in NVRAM at position 0.
32 Disable HST
64 Disable MNP Level 3 (used for testing
Level 2).
128 Hardware reset (works like powering
off and then on).
Value Result
1 Disconnect on escape code.
2 Send result codes only when
originating a call.