A mobile phone is also commonly known as a cell phone or else a hand phone. Mobile phones are mobile, as suggested by the name and help make and receive telephone calls over a radio link while moving around a wide geographic area. Mobile phones also have other services such as text messaging, MMS, email, Internet access, short-range wireless communications-Bluetooth, business applications, gaming and photography. Mobile phones are used to keep in touch with family members, conducting business, and having access to a telephone in the event of an emergency. Mobile phones have an excessive coverage area, greater than land line penetration. Mobile phones now come in various designs, from simple to touch phones. Mobile phones also have camera and video options.