93Battery Backup - System MemoryDescriptionThe battery on the GCD-CP10 retains the Clock/Calendar and Last Number Redial (LNR) buffers foreach station when the GCD-CP10 encounters a power loss. With a fully charged battery, the settingsare retained for approximately three years.The system programmed memory (Customer Database) is stored in Nonvolatile Memory and can beerased only by performing a First Initialization.For additional storage time, the database and Caller ID History can be copied to the system drive on the GCD-CP10.ConditionsThe battery on the GCD-CP10 should be removed during long term storage but must beinstalled (protection against loss of power) just before blade installation to provide batterybackup for System Memory.When fully charged, the battery retains System Memory for approximately three years.You should replace the GCD-CP10 battery every three years.During normal operation, the battery is continually recharged using a built-in chargingcircuit from the GCD-CP10.To prevent loss of the Caller ID History, you should save the database before storing theGCD-CP10.Battery backup on the GCD-CP10 does not protect the following:CallbackOff-line Status (for programming system or station assignments)Repeat RedialTrunk Queuing/Camp-OnCaller ID HistoryDefault SettingsNone The battery must be installed on the GCD-CP10 prior to programming a customer database.System AvailabilityTerminalsNoneRequired Component(s)