Private telephone and data exchange system using detachable storage medium

Abstract

Abstract PURPOSE:To feed a telephone operator a telephone number and a function fed to a telephone set itself by using a detachable and portable storage medium stored with telephone number, classes, etc., and storing its contents in a storage device. CONSTITUTION:When a magnetic card 1 is inserted into an input device 2A, TEL1 becomes usable and the input device 2A reads the contents of the card 1. The storage device 4 is stored with the read information. The information stored in the device 4 is the telephone number corresponding to the equipment number of an interface 3A, class information, abbreviated dial number registered on the card 1, etc. The telephone operator after inseting the card 1 lifts the handset of the TEL1 to originate. Further, when the telephone number of the card 1 is received from another internal or external line, an exchange 5 reads the equipment number of the interface 3A corresponding to the telephone number and connects the incoming call to the interface 3A.

Inventors

• 👤 Hisao Furukawa
• 👤 久雄 古川

Bibliographic Details