Inmarsat GSPS or Global Satellite Phone Service is rapidly becoming the standard handheld satellite phone for users operating between 50° N and 50° S latitude.
Inmarsat uses geostationary equatorial satellites to provide near global coverage except in the polar regions. Inmarsat GSPS offers voice calling, short messaging (SMS), email-to-text, and 2400 bps data.
The IsatPhone 2 also has several important safety tools. A Personal Assistance Button lets the user quickly transmit a short message to a preset emergency contact showing them the phone's most recent GPS fix location.
An automatic breadcrumb trail of GPS location reports can be sent as often as every 5 minutes. A Tracking LED on the phone's LCD screen indicates whether tracking is active. A Tracking Button on the side of the phone lets you easily toggle tracking on and off.
Though the IsatPhone 2 has a relatively slow 2400 bps (best case) data speed, it can be used effectively for email and photo sharing by using the optional Optimizer Hotspot (see our review).
The IsatPhone 2 handheld satellite phone is intended for outdoor use where it has a clear line of sight to the sky. In-building and in-vehicle applications require a docking stations with an external antenna. The IsatDock 2 PRO and IsatDock 2 MARINE have a variety of features including a privacy handset, speaker phone with mute button, Bluetooth support, data call support, and an RJ-11 phone port for use with conventional phone equipment. The marine version of the docking station has a water resistant translucent screen that protects the satellite phone while it is docked. Various antennas are available:
Solar Charging Solutions: The IsatPhone series phones are USB chargeable. Outfitter Satellite offers several solar charging solutions depending on your application. Our 4-Watt Compact Solar Charger (shown right) can charge its internal battery while strapped onto your backpack. You can recharge your satellite phone or other small USB-chargeable electronics later at your convenience.
The Inmarsat GSPS coverage map is shown to the right. Outfitter Satellite generally recommends GSPS for users operating between 50° N and 50° S latitude. As you travel north of 50° N (or south of 50° S latitude), the Inmarsat satellites tend to be closer to the horizon and the possibility of terrain masking from mountains or trees increases.