Embedded Modem Developer's Guide

Chapter 5 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 70
Compatibility Commands
Command: &L Leased Line Operation
Description: Requests leased line or dial-up operation. This command is provided for
compatibility only; no mode change is performed, dial-up operation
continues. The OK response is returned for a valid parameter, but no other
action is performed. The parameter value, if valid, is written to S27 bit 2.
Defined Values: &L0 Requests dial-up operation. Dial-up operation continues.
Result Codes: OK
ERROR
Command: )M Enable Cellular Power Level Adjustment
Description: This command is included for compatibility only and has no effect other
than returning a result code.
Defined Values: )M0
)M1
)M2
Result Codes: OK
ERROR
Command: @M Initial Cellular Power Level Setting
Description: This command is included for compatibility only and has no effect other than
returning a result code.
Defined Values: @M0
@M30
Result Codes: OK.
ERROR
Command: :E Compromise Equalizer Enable Command
Description: This command is included for compatibility only and has no effect other than
returning a result code.
Defined Values: :E0
:E1
Result Codes: OK
ERROR