The telephone is a telecommunication device that is used to transmit and receive sound. It is the most commonly used household items in the world day today life. Usually it is used to communicate between two people sometimes occasionally three or more. . Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost anyone. Nowadays telephones are developed many latest technologies like will phone, cellular phone, land line phone, etc… A will phone is one of the telecommunication devices without any wire connection. It’s very easy to communicate between each other. Cell phone is one of the latest technology which is invented to communicate very easily any where at any time. It is very small device which is portable and easy to carry.
We can enjoy many benefits by using telephones like we can contact many people in a short period of time, we can identify easily whether we interacting with the proper person, usually a ringing telephones is answered immediately and also it allow us to keep in contact with others and know how they are. There are some disadvantages are also available in this technology. Microwaves pass through the phones can be harmful to humans.
