| 摘要 |
PURPOSE:To make a telephone number independent of a home memory station address storing subscriber data and to simplify the access processing. CONSTITUTION:When an exchange station 133 receives a position registration signal 22, the exchange station 133 sends an address request signal 23 with a telephone number in the signal 22 inserted thereto to an address memory station 21. The address memory station 21 stores home memory station addresses with respect to all telephone numbers, the address memory station 21 uses the telephone number in the signal 23 to retrieve the home memory station address and returns an address acknowledge signal 24 with a resulting address inserted thereto to the request source exchange station 133. The exchange station 133 cross-references the home memory station address in the signal 24 and the telephone number and stores the result to an address memory 25 in the present station. When an exchange station requires subscriber data by a signal from a mobile equipment, the exchange station retrieves the address memory 25 in the present station to recognize the home memory station address and accesses the address to obtain relevant subscriber data from the home memory station address.
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