The general syntax for issuing a modem command is:
@echo \{AT_Modem_Command\} > COMx:
where \{AT_Modem_Command\} is an valid modem command string and COMx: is the COM port that the modem is configured for.
Example - To issue an ATZ to my USR Courier on COM2:
@echo ATZ > COM2:
You can do this at a CMD prompt or in a batch file.
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