METHOD FOR BACKUP OF SERVICE PAYMENT DATA USING DATABASE IN TELEPHONE EXCHANGE SYSTEM Russian patent published in 1999 - IPC

Abstract RU 2128402 C1

FIELD: telephone equipment. SUBSTANCE: device uses flash memory instead of disk memory storage as in standard telephone exchange systems. Update of data base files immediately results in storage to static read-only memory unit. Then data stored in static memory unit are copied into flash memory in order to provide backup copies. EFFECT: simplified backup procedure. 5 cl, 4 dwg

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RU 2 128 402 C1

Authors

K'Jung-Man Lim

Dates

1999-03-27—Published

1998-01-19—Filed