On the Com Ports Settings tab, select the COMPort where the module is connected; this is
generally RS-232. Change the Baud Rate to 115200 Fixed.
On the PPP tab select the Config/Port Used where the modem is connected. This is the same as
was selected on the Com Ports Settings tab. Set Modem Dial String to AT\APPP.
RV50(X) Sierra Wireless AirLink® 4G LTE Cellular Modem 13