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DATA SYNC
HA setup provides data sync mechanism:
1. After UCM boots up, the standby UCM will send requests for all the data on active UCM and perform
data sync. Every time when the active UCM has configuration change, it will also synchronize up
the data to the standby UCM automatically and immediately.
2. Data sync is triggered in real-time manner. It not only synchronizes up configuration data, but also
extensions, voicemail, CDR, etc.
3. Every day at midnight, a full backup will be performed to ensure active and standby UCM always
have the same data on daily basis.
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