If the is rebooted during an Active Directory Server outage, it will use its local AD cache for call routing purposes (post power up) if:- Sonus SBC 1000: an external USB storage drive is attached to the Sonus SBC 1000 main board. Without it, the local AD cache is purged between system reboots (and upgrades). In order to achieve a high level of resiliency, we recommend attaching an external USB drive to your Sonus SBC 1000 unit.
- Sonus SBC 2000: Unlike the Sonus SBC 1000, the Sonus SBC 2000 model has built-in storage with reserved space for the Local AD cache to overcome this situation. No external storage is necessary.
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