Mobile phone and Radio-telephone

Mobile phone noun - A hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver.

Radio-telephone and mobile phone are semantically related. In some cases you can use "Radio-telephone" instead a noun phrase "Mobile phone".

Mobile phone and radio-telephone are semantically related. You can use "Mobile phone" instead a noun phrase "Radio-telephone".