METHOD AND SYSTEM FOR RENEWING REPRODUCED DATA BASE IN ELECTRIC COMMUNICATION NETWORK SYSTEM IN FORREIGN AND NATIVECOUNTRIES FOR SUPPORTING WORLD-WIDE MOBILITY OF NETWORK CUSTOMER

摘要

PROBLEM TO BE SOLVED: To facilitate access at the time of the inquiry and updating of one record of a data base, to reduce call set-up time and to improve efficiency and system usability. SOLUTION: A customer record is updated inside a visitor data base 28a inside the signal processing system of the communication network of a foreign country. Updating information is transmitted through the signal processing network of a home country to the data base 26a of the home country provided with the replicated version of a visitor data base record. A field for the record corresponding to the version number of the record is added so as to identify a reference record by the inquiry of a call. In the sites 26 and 28 of all the data bases, until the processing of an old call for inquiring the record is completed, while holding an old version, the data base record of the home country is changed by using a version number sequence and reflecting change inside the visitor data base.