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Electronic mail is a method of exchanging messages between people using electronic devices. Email entered limited use in the 1960s, but users could only send to users of the same computer, and some early email systems required the author and the recipient to both be online simultaneously, similar to instant messaging.
Answer:
We use the internet because it is a way of finding certain things out that we do not know or a better way of communicating to people who are far away instead of sending a letter to them and it taking 2 to 3 months for it to get to that person.
Explanation:
Your welcome
I dont think it would be possible for someone to listen to your calls im pretty sure only the police could if they provide a sign warrent by a judge to the phone company