For those who have hardware in their Laptop for the WWAN Mobile 3G interface and cannot find the drivers, wee below.
WWAN Toshiba Novatel EU870DT1 PA3547E-1HSD
DELL etc 5520
Follow the quide below to download the drivers and how to install them.
You will need to re-boot after the drivers have loaded for them to be used in NEtwork Dialup settings.