S2 I Bit mapped
configuration register
blt 012
Unused
blt 34
00
Modem ignores DTR (&DO)
01
ON-to-OFF transition on DTR cusses the modem to go
to the command state (&Dl)
10
ON-to-OFF transition on DTR causes the modem to
hang up (default &D2)
11
ON-to-OFF transitlon on DTR causes the modem to
reset c&D31
bit 5
0
DCD always ON (&CO)
1
DCD tracks the actual state of the data carrier
(default &C 1)
bit 6
Unused
bit 7
0
Long Space Disconnect disabled (default YO)
1
Long Space Disconnect enabled Wl)
S22 Bit mapped
configuration register
bit 01
00 Speaker volume low (LO)
I
01 I Speaker volume low (Ll)
I
10
Speaker volume medium (default L2)
11
Speaker volume high (L3)
00
Speaker disabled (MO)
01
Speaker on until carrier detected (default M 1)
10
Speaker always on (M2)
11
Speaker on until carrier detected but off during
dialing (M3)
bit 23
B-10
Fax/Modem
Command Set