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8–20
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:
(5) 1 32 Enables V.13 half-duplex simulation in syn-
chronous mode.
(4) 1 16 DSR follows DTR. (See also S41b5)
(3) 1 8 Enables cyclic dial with ATDSn.
(2) 1 4 Semi-auto dial backup; the modem waits for
user input from the panel before dialing the
back up number.
(1, 0) Reserved.
Code Bits Bin. Dec. Description
(7 - 6) Reserved.
(5) 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.
(4) 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.
(3) 1 8 Reverse V.23 channel speed:
Originate mode modem speed
(Send/Receive) 1200/75
Answer mode modem speed
(Send/Receive) 75/1200
(2) 1 4 Enables data calling tone (CNG) sending.
Code Bits Bin. Dec. Description