Cellular phones are hand-held telephones with built-in antennas. These phones are well known because they are small wireless phones that you are able to carry with you where ever you go!
Wireless phones are 2-way radios. When you talk into a phone (cellular phone), it picks up your voice and turns the sound to radio waves. The radio waves travel through mid-air until they reach a receiver at a close base station. The base station sends your call through the network until it reaches the person your calling
When people receive a call on a cellular phone a message travels through the wireless network until it reaches a base station close to your phone. Then the base station sends out radio waves that are detected by your phones receiver, where those waves are changed into voice.
