The Inmarsat iSatPhone Pro is a low-cost, handheld satellite phone that enables you to make calls anywhere in the world (excluding the N & S poles), and comes with voicemail, text and email messaging, and GPS location data. IsatPhone Pro delivers clear voice quality that you’d expect from the market leader. This phone is designed to work in just about any conditions and there are no worries about battery life because it has the longest in the market.