A universal phone or a satellite phone uses orbiting satellites for sending as well as receiving phone calls similar to a cellular phone.  It also needs terrestrial phone towers for sending and receiving calls.

1. A universal phone needs orbiting satellites to make and receive calls making it a best device be used in any parts of the world. It is the most used phone for expeditions to the places where cell towers are not available.

2. The phone mainly relies on satellites to send as well as receive calls which may get affected if there are no satellites. There can be obstacles to the satellites with thick jungle foliage or mountainous regions that can block the signal disturbing the service.

3. A universal phone is very expensive compared to other phones and the costs of calls are also very expensive. Calls can be charged from 69 cents to $8 per minute which depends on the service provider.

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