A radiotelephone is any device that is used to deliver voice transmissions over radio waves. A wide variety of devices are categorized as this definition. Many radiotelephones can relay messages through traditional land phone lines, and some are used mainly for mobile-to-mobile wireless transmissions. Several modern devices like mobile phones are technically considered radiotelephones.
The most basic kind of radiotelephone is an easy transceiver that sends voice signals to a different station. The radios used by police cars are types of standard radiotelephones. Ships, aircraft, and military units also commonly use radiotelephones for communication, since they often be employed in situations where other voice transmission methods usually are not available.

The technical concept of a radiotelephone extends beyond simple point-to-point transceivers, as well as includes radios that could interface using the land phone system. On this arrangement, basics receiver is associated with a normal phone. Voice signals sent from a mobile radio are acquired through the base station and forwarded from the phone lines. An individual operator may be used to connect calls, or an automated tone-controlled system can be utilized. These types of radiotelephone installations were not unheard of before cell phones became prominent.
Cell phones have been radiotelephones, but they are rarely called with this name today. Each “cell” or area of phone coverage has a radio station which is of this particular traditional phone grid. A handheld cell phone unit contains a short range radio transceiver. Early cellphone radiotelephone conversations were sent using a standard radio signal and could be acquired by any receiver around the proper frequency. Modern calls are encrypted to stop eavesdropping.
Regardless of the interest in cell phones, a lot of people still use more standard radiotelephones for professional and hobby communication. Businesses often employ mobile voice radios to speak in areas that are outside cell coverage, including remote construction sites. Amateur radio experimenters use handheld and vehicle radiotelephones for connecting with other enthusiasts, and still have access to private radio repeaters that are just like the mainstream mobile phone networks.
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