TP-LINK TD-W8970 V3 Gigabit Wireless N ADSL2+ Modem Router for Phone Line Connections (300 Mbps, Media/Print Server and 3G/4G Modem, USB Ports for Storage Sharing) : Amazon.co.uk: PC & Video Games
3G Settings tp-link Modem Router Model No. TD-W8970 - YouTube
Enable port forwarding for the TP-LINK TD-W8970 - cFos Software