Chapter 1 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. AT Commands for the MultiModem & SocketModem MT9234 Series (S000434H)
9
E
Echo Command
Description:
Enables or disables the modem's echo feature. When the echo feature is selected
and the modem is in the command mode, characters sent to the modem are sent
back to the host and displayed on the monitor.
Syntax: ATE<value>
Values:
0
Do not echo keyboard input to the terminal.
1
Do echo keyboard input to the terminal.
Default: 1
F
Online Data Character Echo Command
Description:
Controller-based products support this command to ensure backward compatibility
with communications software that issues the F1 command.
Syntax: ATF<value>
Values:
0
Enable online data character echo. (Not supported.)
1
Disable online data character echo (included for backward compatibility).
Default: 1
Result Codes:
OK
if <value> = 1
ERROR
if <value>
≠
1.
H Hook
Control
Description:
Instructs the modem to go on-hook to disconnect a call or go off-hook to make the
telephone line busy.
Syntax: ATH<value>
Values:
0
Go on-hook (hang up).
1
Go off-hook (make the phone line busy).
Default: 0
Result Codes:
OK
if <value> = 0 to 1
ERROR
if <value>
≠
0 to 1.
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