Inmarsat 
Thuraya 
Globalstar
The four main commercial satellite communication networks are Iridium, Inmarsat, Thuraya and Globalstar. The questions you should ask yourself when choosing a network are:
- Where do the satellites offer coverage?
- Wow high up are the satellites?
- Are the satellites stationary?
- Do I need data?
- What are the costs?
The answers to this questions define what satellite network suits you best, if you will be able to make a connection and how stable it will be. Read more…