Modem User Guide MT3334HD8

3 AT Commands
CommPlete Communications Server 35
$SB300 300 bps
$SB1200 1200 bps
$SB2400 2400 bps
$SB4800 4800 bps
$SB9600 9600 bps
$SB19200 19,200 bps
$SB38400 38,400 bps
$SB57600 57,600 bps
$SB115200 115,200 bps (factory default)
Immediate Action Commands
Use these commands to get information about AT commands and the current settings of the modem. For
additional immediate action commands, see “Line Probe Commands” on page 41.
A/ Repeat Last Command
Default: None
Type A/ to repeat the previous command. Do not precede this command with AT or press E
NTER to
execute it.
In Inquire Product Code
n = 0, 1, or 2
Default: none
Some systems or software packages automatically check the identification of the modem by using the I
command. Besides using it to check the modem ID, you can use the I command to check the version
number of the modem’s built-in software, known as firmware.
ATI0 or ATI requests the modem’s ID number.
ATI1 requests the modem’s firmware version number. You can use this command to identify your
modem’s firmware level when calling Technical Support.
ATI2 requests the product name, such as MT3334HD8.
ATI5 requests the digital signal processor version number.
L5, L7 List Current Operating Parameters
Default: none
The L5 and L7 commands cause your modem to list its current operating parameters. These lists are
useful when you are changing communications software, or when you are changing modem default
settings. All modem configuration parameters are listed.
ATL5 lists the modem’s current operating parameters.
ATL7 lists additional modem parameters.
L6 List Current S-Register Values
Default: none
ATL6 lists the current values in the modem’s S-registers. This information can be very useful if you wish
to change S-register values.