Embedded PPTP-based VPN client in DOVADO routers
As of firmware 7.0, the DOVADO TINY / GO / DOMA / PRO routers for 4G/LTE and 3G USB modems contain a PPTP-based VPN client, with optional 128-bit encryption. The client features some neat extras which can provide you more flexibility and improved security. You can also (remotely) request the router's IP address via SMS command "status".