Coin telephones, also known as payphones, are public telephone booths where users pay for their calls using coins or tokens. However, there are several synonyms to describe these communication devices. One of them is a payphone, which is the most common term used in the United States. In the UK and Australia, coin telephones are referred to as "phone boxes," while in Canada, they are called "telephone kiosks." Other synonyms include pay station, coin-operated phone, and public telephone. Today, coin telephones are becoming less common as most people carry their own mobile phones, but they remain an important part of public communication infrastructure.