A Tunnel in Connect Mode can be initiated using Modem commands incoming from the Serial Line.

The Modem Pluses and Modem Commands can be echoed (sent) or not echoed (not sent) on the Tunnel when read on the Serial Line.

The Verbose Reponse Codes boolean specifies whether or not Modem Response Codes are sent out on the Serial Line.

The Response Codes value specifies if the Modem Response Codes sent out on the Serial Line should be sent in 'Text' or 'Numeric' representation.

The Error Unknown Commands value specifies if an ERROR return value should be sent on unrecognized AT commands. If 'On' then ERROR is returned for unrecognized AT commands otherwise if 'Off' then OK is returned for unrecognized AT commands.

The Connect String is a customized string that is sent with the CONNECT Modem Response Code.