Patent ID: 8145244
Filing Date: 2012-03-27
Classification: H04M

Abstract:
1. A method for sensing a physical position of a cordless handset with respect to a base unit, the method executed by a device in communication with the base unit over a communication network, the base unit connected to the communication network via a communication line, the method comprising: initializing a dataset of measured line currents, the dataset of measured line currents comprising line current measurements generated by measuring a current flow through the communication line connecting the base unit to the communication network; receiving a line extension number for use in determining the position of an associated cordless handset; accessing stored on-base-unit and off-base-unit line currents; determining if the cordless handset is positioned on the base unit based on a comparison of the stored on-base-unit and off-base-unit line currents to the line current measurements generated by measuring the current flow through the communication line connecting the base unit to the communication network, the communication line comprising of a rear pair and a middle pair, and wherein determining if the cordless handset is positioned on the base unit further includes: in response to determining that the handset is in contact with the base unit, proceeding with a desired task.