Robust adaptive filter for use in acoustic and network echo...
Robust double-talk detection
Robust double-talk detection and recovery in a system for...
Robust signaling tone frequency measurement
Robust signed regressor PNLMS method and apparatus for...
Role-based programmable telephone keys
Rotary base for telephones and the like
Rotary dial pulse receiver
Rotating apparatus for liquid crystal display
Rotating module
Rotation open and close type mobile terminal
Rotational hinge damping mechanism
Rotational split adaptor
Rotational split adaptor
Round trip delay estimator and compensator for the echo...
Route based network management
Route delay sensitive echo cancellation
Route information message for delivery of prepaid flexible...
Routine communication sessions for recording
Routing a call through a telecommunications network