Choose "Yes" to configure the modem on the COM2 port.
To delete the configured modem port, press [Enter] on the configured
modem port item and choose "Deconfigure Modem Port".
Modem Initialization Command
In the Modem Setup menu, choose "Modem Initialization". A dialog
box will appear showing the default initialization command and the
current custom initialization command. Enter the AT command in the
"New Custom Init Cmd" field, if required.
Modem Operating Modes
To send the initialization command to the modem, there are three
selectable options:
Sending Default Init command only - "None <Default Used>"
Sending Custom Init command only - "Replace Default"
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User's Guide