Patent ID: 7835774

Claim:
A method of processing a voice signal, comprising: (a) detecting, at a microphone of a second communication endpoint, a first over-air signal from a user of a first communication endpoint, the first over-air signal having a first set of characteristics, wherein the second communication endpoint and the first communication endpoint are in physical proximity; (b) monitoring a call on the second communication endpoint for a second electrical signal received at a network interface of the second communication endpoint, the second electrical signal having a second set of characteristics substantially similar to the first set of characteristics; (c) detecting, at the second communication endpoint, the second electrical signal; and (d) in response to step (c), performing at least one of the following, for a user at the second communication endpoint: (i) canceling out substantially the detected second electrical signal from the call; (ii) increasing a volume of the call to render the detected first over-air signal substantially inaudible in comparison to the detected second electrical signal; and (iii) substantially muting the call to render the detected second electrical signal substantially inaudible in comparison to the detected first over-air signal.