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EPROM Check I
PC software packages may issue the I command to verify the modem
will support all commands needed by the software package. The
modem returns ASCII characters representing the model and revision
level. To request the checksum to be calculated on the EPROM, enter
the I1 command. The modem returns four ASCII characters repre-
senting the CRC in hexadecimal form. Enter the I3 command to request
the product version.
Command
I
I1
I3
I4
I5
Speaker Volume L
The L commands offer three volume levels.
Command
L, L1
L2
L3
* default
Speaker Control M
The M commands enable or disable the speaker for monitoring
purposes.
Command
M
M1
M2
M3
* default
Request product code
Request EPROM checksum value
Request product version
Request capability code
Last disconnect reason
Speaker volume low
Speaker volume medium *
Speaker volume high
Disables the speaker
Disables the speaker while receiving a carrier signal *
Speaker always on
Disables the speaker while dialing and after a carrier is
detected
Operation
Operation
Operation
V.3400
AT Commands
5-23
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