Emsat provides mobile telephony and data services to regions where terrestrial cellular networks have not yet penetrated.
Trojans and premium rate diallers which call out to expensive numbers in faraway countries are a well-established scam. They often come disguised as an ActiveX control that disconnects you from your ISP, then silences your modem and (re)dials a number, usually somewhere in Africa. Phone bills exceeding €1,000 are not unusual. In Germany phone fraudsters have raked in €300 per call. Since most phone companies share revenues with service providers, rogue diallers seem to make good money.