Does the mio Box have standby power back-up?
No, mio Box does not have standby power back-up. You will not be able to receive incoming and make outgoing calls in the event of a power failure. For customers who are concerned about power-related disruptions, you may want to consider installing a back-up power option such as Uninterruptible Power Supply (UPS) unit. The UPS unit will provide back-up power in the event of power failure, thus ensuring that there will be no service disruption for mio Voice. Nevertheless, you can still make calls using your mobile phones in the event of a power failure.