CENTRALIZED AUTOMATIC CHARGING SYSTEM FOR PUBLIC TELEPHONE IN PUBLIC TELEPHONE NETWORK

摘要

PURPOSE:To achieve the charging system in a public telephone set in a same way as in conventional telephone sets, by discriminating a subscriber in use through dialing of a subscriber number in use before the dialing of opposing telephone number at a call of a public telephone set. CONSTITUTION:When a subscriber number receiver 220 is connected with calling of a public telephone set 200, the subscriber number dialed by the user of the telephone set 200 is received and the received transmission subscriber number is set to a charging information collecting index register 240 with a public network channel device 230, allowing to collect the charging information per subscriber indicated in the register 240 in the device 230 concentratingly and automatically.