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This command controls whether or not the characters entered from your computer
keyboard are echoed back to your monitor while the modem is in command mode.
E0: Disables echo to the computer.
E1: Enables echo to the computer (default).
Fn On-line Data Character Echo Command
This command determines if the modem will echo data from the DTE.
F0: On-line data character echo enabled (NOT SUPPORTED, ERROR).
F1: On-line character echo disabled. (default)
Hn Hook Control
This command instructs the modem to go on-hook to disconnect a call, or off-
hook to make the phone line busy.
H0: Modem goes on-hook (default).
H1: Modem goes off-hook.
In Request ID Information
This command displays specific product information about the modem.
I0: Reports product code.
I1: Reports modem chip firmware version.
I2: Performs a ROM check and calculates and verifies the checksum dis-
playing OK or ERROR.
I3: Reports chipset name.
I4: Reserved.
I5: Reserved.
I6 Country code.
I7 Reports board version number.
I8 Reports modem firmware features.
Ln Monitor Speaker Volume
This command sets speaker volume to low, medium, or high.
L0: Selects lowest volume.
L1: Selects low volume.
L2: Selects medium volume (default).
L3: Selects high volume.