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Chapter 12 - Status Registers & Result Codes
12-8
Command bit dec hex Function and description Ref.
6 64 40 When selected with ‘&B0’, DTE speed fixed
at 38400 when the link speed is above 9600.
DTE speed fixed at 9600 if link speed is 7200,
DTE speed follows link speed. When selected
with &B1, DTE speed fixed at current rate
when an ARQ connection is made, when a
non-ARQ connection is made, DTE speed
follows the link speed. (See also S18)
&Bn
7 128 80 Enable UK (Australian, Singapore, Indian,
etc.,) type short-to-short (discontinuous) ring-
back detection.
S45= dec
0-255
hex
0-FF
Delay during which the CND silence detection
is disabled, in 20 ms units. (See also S46)
+087
S46= dec hex CND silence detection interval +003
0-255 0-FF To process the CND, silence must be
detected for the specified interval, in 20 ms
units
S48= bit dec hex Bit-mapped register +000
0 1 1 Cause CND information to be reported in raw
format
1 2 2 Enable DATA ONLY mode. Auto-detect
V.34/ZyX/V.32bis/V.22bis/V.23/V.21 Bell
103 when answering. If the connection try
fails, the modem will continuously recycle the
handshaking procedure until the S7 register
times out.
2 4 4 Enable data calling tone (CNG) sending
3 8 8 Reverse the V.23 channel speed. Originate
mode modem speed (Send/Receive) 1200/75;
Answer mode modem speed (Send/Receive)
75/1200
&N12
4 16 10 (Work with &D1 command) DTR ON will
have the modem dial the default number and
DTR OFF will have the modem hang-up and
reset to profile 0. When the modem is idle
(waiting for command), it will not dial any
number when DTR changes from ON to OFF
5 32 20 Enable IS-101 command set. Set this bit to 0
to make voice command compatible with U-
1496
S49= bit dec hex Bit-mapped register +006
3-0 0-15 0-FF Set cellular mode transmit power level -9 to -
24 dBm. (See also S43b2)
7 0 0 For cellular mode only. Modem is installed in
office (Default)
7 128 80 For cellular mode only. Modem is connected
to a mobile phone
S50= dec hex Inactively timer, in 10 second units +000