Abstract: An object of the present invention is to make it possible to utilize information service provided by a carrier without designating a standard protocol as a communication network. A plurality of carriers provide information services to a communication network to which a called terminal unit is connected through a communication line. At the time of termination, a carrier control signal transmitted from the communication network includes a calling line number for identifying an originator, carrier information for identifying a carrier, and carrier service information for identifying a service to be provided. When a plurality of terminals are connected to the called terminal unit as slave units, a function of inter-calling a terminal-number provided by a carrier can be utilized. Carrier information identifying means identifies a carrier on the basis of the carrier information, and carrier-service-information-identifying means controls a terminal selecting circuit on the basis of the carrier service information.

Abstract: A facsimile apparatus includes a facsimile communication control unit, a terminal number comparing unit connected to said facsimile communication control unit, and a terminal number memory connected to the terminal number comparing unit. The terminal number of a facsimile apparatus of the other party is stored in the terminal number memory. When signals are received by the facsimile apparatus, the terminal number of the other party transmitted in accordance with a protocol is detected by the facsimile communication control unit, and the terminal number comparing unit compares the detected number and the terminal number stored in the terminal number memory. When both numbers match with each other, the received information is printed, stored in a prescribed memory area or subjected to other processing dependent on the number and the associated process stored in the terminal number memory.