Patent ID: 8478359

Claim:
A multi-function communications device comprising a multi-function communications device housing having integrated therein: a microphone; a speaker; a display; memory having stored therein an operating system program and a plurality of application programs to perform functions of the multi-function communications device including visual voicemail web browser, email, digital camera, and telephony; a processor to execute the operating system and application programs to perform said functions and to generate a user interface audible tone signal that causes a sound to be heard by a near-end user of the device from the speaker and that is a result of an event occurring in one of the plurality of application programs being executed; a downlink digital signal processor to process a downlink audio signal received from a far-end user's communications device, the downlink signal causes speech of the far-end user to be heard by the near-end user from the speaker; an uplink digital signal processor to process an uplink audio signal picked up by the microphone and to be transmitted to the far-end user's device; and a first mixer having a first input to receive the downlink audio signal and a second input to receive the user interface audible tone signal, the uplink processor has an acoustic echo canceller having a first input to receive the uplink audio signal and a second input to receive an output signal from the first mixer, wherein the acoustic echo canceller is designed to reduce an amount of the far-end user speech and the user interface tone, in the uplink signal.