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AT Commands and S-Registers
4-53825-A2-GB30-20 November 1996
Table 4-1
(3 of 14)
3825
Plus
AT Commands
H
n
Hook Switch Control
Allows the modem to go off-hook or on-hook.
H, H0 Modem goes on-hook.
H1 Modem goes off-hook.
I
n
Identification
Provides useful information when upgrading or servicing the product.
I
,
I0 Displays product code (default is 144).
I
1
Displays 3-digit firmware revision number.
I
2
Performs an EPROM check.
I
3
Displays serial number.
I
4
Displays model number.
I
5
Displays hardware part number.
I
6
Displays software part number.
I
9
Displays 3-digit firmware revision number (same as I1).
I
10
Allows you to change the value displayed by I0:
I10=0 causes I0 to display 144 (default).
I10=1 causes I0 to display 240.
I10=2 causes I0 to display 480.
I10=3 causes I0 to display 960.
I10=4 causes I0 to display 120.
I1
1
Displays the program memory checksum.
I
17
Displays the last eight critical errors; the first is the most recent. (Support personnel use only.)
I
19
Displays the entire firmware revision number.
L
n
Speaker Volume
Adjusts speaker volume.
L, L0
Selects low volume.
L1
Selects low volume.
L2
Selects medium volume.
L3
Selects high volume.
M
n
Speaker On/Off
Turns speaker on and off.