Support for PBX failover

The BlackBerry® Mobile Voice System does not support PBX failover. If any of your organization's users are on BlackBerry MVS calls when the active PBX stops responding, the calls remain active until the BlackBerry device stops receiving registration messages from the PBX. The users cannot send or receive any new BlackBerry MVS calls until the PBX is active again or until you associate the affected telephony connector with the standby PBX.

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