Patent ID: 7245702
Filing Date: 2007-07-17
Classification: H04L

Abstract:
1. An apparatus in a customer premises integrated services hub supporting a plurality of telephone lines for determining the operational status of the customer premises integrated services hub, comprising: (a) a plurality of subscriber line interface circuits (SLIC), the number of SLICs equaling the number of telephone lines, with a separate SLIC corresponding with and connected to each of the telephone lines, (b) at least one subscriber line access circuit (SLAC) connected to the SLICs to detect an off-hook condition in the telephone lines; (c) a power monitor for monitoring the status of AC power to the integrated services hub; (d) a backup battery powering the integrated services hub when AC power fails; and (e) a telephony controller, the telephony controller receiving notification from the power monitor regarding the status of AC power to the integrated services hub, the telephony controller receiving notification from the SLAC of an off-hook condition in the telephone lines, and the telephony controller activating a warning signal on at least one telephone line that the backup battery is powering the integrated services hub in response to notifications from the power monitor that AC power has failed and from the SLAC that an off-hook condition has occurred.