| 摘要 |
PURPOSE: A method and a system for charging for a call between wired phones in a wired phone calling system using a wireless communication module are provided to deliver data of use time by wired phones to communication providers using the wireless communication module, so that each communication provider can charge for each wired phone based on the received data. CONSTITUTION: A wired phone attempts a call(S301). A controller detects the call attempt(S302). The controller connects the wired phone to an exchange(S303) and operates a decoder(S304). If a user of the wired phone inputs a target wired phone number(S305), input signals are delivered to the decoder for decoding(S306). The controller reads data of the target wired phone number to confirm the target wired phone, and decides whether the target wired phone is busy(S307,S308). If so, the controller makes an announcer deliver busy signals to the call attempting wired phone(S309), and if not, the controller connects the target wired phone to the exchange(S310) to make the announcer deliver a ring to the target wired phone(S311). A user of the target wired phone receives the call(S312). The controller records a call start time for the call attempting wired phone(S313). If one phone is hooked on(S314,S314'), the controller disconnects the call(S315,S315') and records a call disconnection time for the call attempting wired phone(S316). The controller operates and stores a call time for the call attempting wired phone(S317). The controller searches an unused wireless communication module(S318) and inputs data of use time according to wired phones(S319). And the controller delivers the data to the unused wireless communication module(S320).
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