A cellular phone or cellular telephone is a type of telephone which does not need wires to connect it to a telephone system. = cellphone, mobile phone. Wireless telephone that permits telecommunication within a defined area that may include hundreds of square miles, using radio waves in the 800-900 megahertz (MHz) band. To implement a cell-phone system, a geographic area is broken into smaller areas, or cells, usually mapped as uniform hexagrams but in fact overlapping and irregularly shaped. Each cell is equipped with a low-powered radio transmitter and receiver that permit propagation of signals among cell-phone users
A wireless phone that does not physically connect with a phone cable Some types of wireless phones can use a special text notification service called SMS See landline phone and SMS