Voice notification for a battery alarm in a network interface unit

Abstract

Transmitting a pre-recorded announcement to the user of an network interface unit (NIU) each time the user places a telephone call if an alarm is set because a battery in an uninterruptible power supply (UPS) is in a low power state. The pre-recorded announcement states that the battery needs to be replaced. The user is given a simple procedure for contacting service personnel at a service center to have the battery replaced in the UPS. In addition, this announcement is overridden if the user starts to dial the emergency telephone number (911). This allows the user to gain immediate access to the emergency telephone number without having to listen to the message stating that the battery in the UPS needs to be replaced. An indicator is also set on NIU upon the battery being in the low power state. If a call is completed to the service center, the alarm is reset for a predetermined amount of time to give the service personnel time to service the battery.

Dependencies are inferred from the claim text.