Patent ID: 8275122
Filing Date: 2012-09-25
Classification: H04M

Abstract:
1. A communications system comprising: a hook switch connected to a telephone device capable of hook switching the telephone when a call is accepted or terminated, a communications device in communication with the telephone device and/or the hook switch, a sensor located on the telephone device sensing a ringing signal, and a ringtone detector connected to the sensor and the communications device, wherein the ringtone detector comprises a feature extractor connected to the ringtone detector, which detects and learns distinctive ringtones automatically, a ringtone feature memory capable of storing characteristics of ringtones for later retrieval and comparison; a comparator for comparing previously stored ringtone characteristics to incoming ringtone characteristics, an alert generator, responsive to said comparator to send an alert signal to the user when the comparator identifies a match with a previously learned ringtone.