Abstract: A public telephone for managing and paying services in situ, the public telephone consists of a microphone and auricular, at least one input device for input of selective information for services management function and for general functioning of telephone calls, at least one output device for displaying selective information on the service management function and on the general telephone calls function, at least one communication interface faciliting the general telephone calls function, at least one communication interface with at least one services provider for faciliting the services management function; and at least one device for reception of payment of charges due to the service management function or the general telephone calls function. Operation methods for the public telephone as per the invention are described.