| 摘要 |
Data terminal equipments placed in a rental company and a mass retailer are interconnected via a data transfer network over an intelligent network for rendering an accounting service. The intelligent network accommodates a credit accounting service manager and a credit accountant. In response to a subscriber registration request for a credit accounting service issued from a data terminal equipment, the credit accounting service manager stores a credit card member number and a subscriber number of a portable telephone as a pair in a database. In response to a call setup request issued from a registered telephone, the credit accountant retrieves a credit card member number from the database using a subscriber number and produces credit withdrawal information.
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