Message playback concurrent with speakerphone operation

Method and apparatus for active reduction of speakerphone...

Method and apparatus for active reduction of speakerphone...

Method and apparatus for active reduction of speakerphone...

Method and apparatus for canceling tone signal noise generated w

Method and apparatus for multiparty collaboration enhancement

Method and apparatus for outbound wave subtraction using a...

Method and apparatus for personalized conference and...

Method and apparatus for volume and intelligibility control for

Method and apparatus for volume and intelligibility control for

Method and apparatus for volume switched gain control

Method and device for changing to a speakerphone mode

Method and system for automatic gain control with adaptive...

Method for active feedback suppression

Method for electrically simulating a cradle switch and a hands f

Method for fail-safe operation in a speaker phone system

Method for reducing noise from a non-linear device that...

Method for the control of voice channel attenuation

Method of and device for echo cancellation

Microphone/loudspeaker having a speakerphone mode and a micropho