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ISDN S BUS EXTENSION TELEPHONE

IP.com Disclosure Number: IPCOM000006808D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Feb-04

Publishing Venue

Motorola

Related People

Authors:
Neil Wellenstein

Abstract

Digital telephone systems, including ISDN, do not allow adding extension phones simply by plugging another telephone onto the line, as analog systems do.