CONTROL SYSTEM OF PUBLIC TELEPHONE STATIONS

摘要

Control system of public telephone stations (1) consists of check and identification units (2) connected between modulating public telephone stations (1) and switched telephone net (6), to which is connected regional operating system (4), to which is connected net (8) with packet switching, to which is connected check and charge center (5) of credit cards. Switched thelephone net (6) is connected by special numerical service lead (7) provided with adapter (3) to net (8) with packet switching and to check and identification units (2) of modulate public telephone stations (1) are connected units (14) of maintenance.