Polycom, Inc.

Anna Lea Gellatly

Warren Edward Baxley

Thomas Edward Yackey

Jeffrey Adams

William Paul Ernstrom

A local conferencing exchange subscriber line conferencing method using a series of input signals from the phone of a subscriber, such as a dual-tone multifrequency (DTMF) sequence of key inputs starting with a star key input, to initiate the conference by enabling a termination attempt trigger. The conference is set up in a bridge and the phone of the subscriber is connected to the bridge. All subsequent callers to the subscriber's phone number at the local exchange carrier are routed and connected to the conference at the bridge. When the conference call ends, the subscriber's phone is returned to normal service.

Growing community of inventors

Arvada, CO, United States of America

Anna Lea Gellatly