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Status Registers
Bit Mapped
Bit
Value Command Description
1, 0 00
L
01
L1
10
L2
11
L3
3, 2 00
M
01
M1
10
M2
11
M3
6-4
000
X
001
X1
010
X2
011
X3
100
X4
7
0
&P
1
&P1
Bit Mapped
Bit
Value Command Description
0
0
&T5
1
&T4
5-1
---
---
7, 6 00
&G
01
&G1
10
&G2
11
--
S24
Not used
10-10
S22
Speaker volume low
Speaker volume low
Speaker volume low
Speaker volume high
Speaker off
Speaker on until carrier detect
Speaker always on
Speaker off when modem is dialing
CONNECT message only, blind dials, no
busy detect
CONNECT / appropriate code for rate,
blind dials, no busy detect
CONNECT / appropriate code for rate,
waits for dial tone, no busy detect
CONNECT / appropriate code for rate,
blind dials, reports BUSY
CONNECT / appropriate code for rate,
waits for dial tone, reports BUSY
Make / break ratio (US) 39/61
Make / break ratio (UK) 33/67
S23
Remote digital loop request denied
Remote digital loop request granted
Reserved
No guard tones
550 Hz guard tone
1800 Hz guard tone
Not used
Modem 3600
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