Communication method for intelligent public telephone system

Application Number: 00124515
Application Date: 2000.09.18
Publication Number: 1283922
Publication Date: 2001.02.14
Priority Information:
International: H04M17/00
Applicant(s) Name: Suantong Electronic Technology Development Co., Ltd., Shenyang City
Inventor(s) Name: Zhao Guang
Patent Agency Code: 00000
Patent Agent:
Abstract An intelligent communication method for public telephone system includes such steps as connexting terminal device to processing platform via switch, the platform generating and sending a challenge word to the terminal device, the terminal device transmitting account number, IC card number and cipher to the platform, the platform authenticating the IC card number or account number and sending the tariff to the terminal device, offhook, the platform sending charge start command to terminal device and beginning accounting fee, and normal talking while the terminal device sending state information to the platform until talking stops, or when talking abnormally, the platform stopping the talking.