Method and apparatus for outbound wave subtraction using a...
Method and apparatus for personalized conference and...
Method and apparatus for reducing false ringback detection
Method and apparatus for sidetone optimization
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 amplifying a reception signal
Method and device for changing to a speakerphone mode
Method and device for displaying a hold service on multifunction
Method and means for increasing inherent channel capacity...
Method and means for increasing inherent channel capacity...
Method and modem circuit using a dither signal for...
Method and system for automatic gain control with adaptive...
Method and system for automatic gain control with adaptive...
Method and system for improving the intelligibility of a...
Method and system for remote telephone calibration
Method and system for remote telephone calibration
Method and system for remote telephone calibration
Method for active feedback suppression