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Table B-1. AT Command and S-Register List (5 of 34)
AT
Command/
Description
S-Register
Identification
I
n
I0
I1
I2
I3
I4
I5
I6
I9
I10
I11
I17
I19
L
Speaker Volume
n
Adjusts the volume of the speaker in the
DataPort 2001.
L0, L1
L2
L3
Displays product code–144
Displays ROM checksum
Performs an EEPROM check
Displays serial number and
AT&T Paradyne
Displays alphanumeric modem number
Displays circuit card part number
Displays software part number
Displays firmware revision number
Allows the value of I0 to be changed to
144 (I10=0), 240 (I10=1), 480 (I10=2),
960 (I10=3), or 120 (I10=4)
Displays a ROM checksum in a
hexadecimal format
Displays last fatal error recorded
Displays firmware revision number in an
alphanumeric format
Low volume
Medium volume
High volume
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