In the communication it is very useful because we can talk to people, we want to talk with each other, no matter how far, in different countries. Each hemisphere can still contact each other.
The communication is very useful because we can talk to people we want to talk to, no matter how far apart they are. In different countries Each hemisphere can still stay in touch.
In the field of communication is useful because we can talk to who you want to talk to whether will be far away. In different countries. The north and south poles can contact each other.