Hubbell Limited

Roger A Nightingale

Winston M Gadsby

Makan Abousaeedi

On-hook VF transmission through a channel unit to a subscriber telephone instrument is provided by a control unit which generates control signals for the channel unit. The control unit responds to receipt of an 'idle' code by creating commands which establish a VF path through the channel unit regardless of whether the subscriber instrument is on-hook or off-hook.

Growing community of inventors

Fairfax Station, VA, United States of America

Roger A Nightingale