Receive reliable voice and internet connectivity to your vehicle anywhere on the planet. Cobham’s Explorer Push-To-Talk (PTT) is a rugged and cost effective IP based voice and data communication system designed to extend or replace VHF/UHF based trunk radio systems widely used in the field service, search and rescue, utility, mining and oil & gas sectors. The system extends classical PTT capabilities to hybrid data networks such as terrestrial cellular networks where available supplemented by Inmarsat’s BGAN satellite network. With no user intervention required, the system automatically routes voice and data traffic via the least expensive network available.