A collect call is also known as a reverse charge call, where the person making the call does not incur any charges, and the person receiving the call pays for it. Another word for a collect call is a person-to-person call, where the caller asks to speak to a specific person, and the charges are only applied if the person is available. Another term used for a collect call is a third-party call, where a person other than the caller or receiver is also involved in the conversation. In some parts of the world, a collect call is known as a reverse charge call, and in some areas, it's called a call collect or a reverse billing call.