Code
Bits
(5)
(4)
(3)
(2)
(1, 0)
S45
Delay during which the CND silence detection is disabled. Unit is
20ms; default: 87: (See also S46)
S46
CND silence detection interval. To process the CND signal, silence
must be detected for the specified interval. Unit: 20ms; default: 3.
S47
Reserved.
S48 Bit-mapped register, default: 0:
Code
Bits
(7 - 6)
(5)
(4)
(3)
(2)
Bin.
Dec. Description
1
32
Enables V.13 half-duplex simulation in syn-
chronous mode.
1
16
DSR follows DTR. (See also S41b5)
1
8
Enables cyclic dial with ATDSn.
1
4
Semi-auto dial backup; the modem waits for
user input from the panel before dialing the
back up number.
Reserved.
Bin.
Dec. Description
Reserved.
1
32
The voice commands and responses follow
IS-101.
0
0
Voice commands and responses are com-
patible with the U-1496 series modems.
1
16
(Works with &D1 command) DTR ON lets
the modem dial the default number and DTR
OFF lets the modem hang up and reset to
profile 0. When the modem is idle (waiting
for a command), it will not dial any number
when DTR changes from ON to OFF.
1
8
Reverse V.23 channel speed:
Originate mode modem speed
(Send/Receive) 1200/75
Answer mode modem speed
(Send/Receive) 75/1200
1
4
Enables data calling tone (CNG) sending.
8–20