| 摘要 |
PURPOSE: A method is provided to creating the profit by dividing the profit when the user uses the PSTN to connect to the other PSTN. CONSTITUTION: The first stage is to prepare and manufacture the service phones which will be used for the service. The second stage is to contact, collect information and contract with stores of about 20 categories of business to participate in the service. The third stage is to prepare the information which the service is going to provide. The fourth stage is to distribute and install the service phones to use the service easily and to create the new users. The fifth stage is to collect the fee for using the service in order to earn the profit.
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