Before editing the IP Office configuration settings, it is important to understand how those settings are stored and used by the IP Office system.
The IP Office control unit holds copies of its configuration in both Flash and RAM memory.
The copy in Flash memory is retained even if power to the control unit is removed.
During power up, the configuration in Flash memory is copied to the RAM memory.
The copy in RAM memory is then used to control the IP Office system's operation.
Users actions such as changing their forward destinations or mailbox passcode using their phone or Phone Manager are written to the configuration in RAM memory.
Between 00:00 and 00:30, a daily backup occurs which copies the configuration in RAM back into Flash memory.
When using Manager to edit the configuration settings, the following need to be remembered:
Manager receives the current configuration settings from RAM memory. Therefore the settings include any changes made by users up to that time.
When sending the configuration settings back to the IP Office, Manager allows two choices, reboot or merge.
Reboot sends the configuration to the IP Office's Flash memory along with an instruction to reboot. Following the reboot, the new configuration in Flash memory is copied to the RAM memory and used.
Merge sends the configuration to the IP Office's Flash memory without rebooting. The IP Office then copies those changes that are mergeable into the RAM memory. A key point here is that not all configuration settings are mergeable, see the Reboot/Merge Configuration List that follows.
As a result of the above, it is important to bear the follow scenarios in mind:
Changes made by users after a configuration is received by Manager may be lost when the configuration is sent back from Manager.
If a merge is attempted with non-mergeable items, those items will be written to Flash memory but will not be copied to RAM memory. If a daily backup occurs, they will then be overwritten by the RAM. If a power loss reboot occurs, they will be written to RAM memory.
