The world's first global mobile satellite communications operator and still the only one to offer a full range of communications services.

Satellite telephone is a wireless telephone telecommunications service whose BTS is in the air. This telephone BTS is a satellite so that it is more reliable in the event of an emergency that paralyzes telecommunications networks on the mainland.

It takes trillions of dollars to build and launch a satellite into orbit in the sky. Take the Iridium communications satellite for example which provides a variety of satellite phone models. This is the reason why the price of satellite equipment and pulses is much more expensive than GSM telephone equipment and pulses.

The advantage of satellite phones is that they have a wider range than ordinary cellular networks because they do not use Base Transceiver Stations (BTS) that are placed on land. Satellite phones put their BTS in the air and can be used in mountainous areas, inland to in the middle of the ocean.

Yes, satellite phones also use a SIM card, but of course the SIM for satellite cellphones is different from the usual cellphone SIM. Several types of simcards are used for satellite cellphones depending on the type of satellite cellphone that we use (there are types of simcards: Thuraya, Inmarsat, Iridium, etc.).

Because satellite telephone is a telecommunications service in the form of a cordless telephone that places its base transceiver station (BTS) in the air so that it has a wider range than GSM-based telephones that place its BTS on land.