
Inmarsat, iridium and globalstar all offer different coverage which may be better in certain areas or for certain types of voice, text or data services. The only satellite network that offers complete whole earth coverage is iridium. The inmarsat isatphone offers global satellite connectivity at an affordable price. In addition to voice and text, the isatphone also includes a built-in gps receiver. While signal acquisition is somewhat slow due to the placement of the inmarsat I-4 satellites and gps acquisition, the call quality is reasonable. For the ultimate in satellite communications the iridium 9575 extreme is the most rugged, and full-featured satellite phone on the market today. Utilizing the iridium network for unparalleled...