At+t Corp.

At&t Bell Laboratories

Joseph M Bennett

Albert D Baker

Alan M Gordon

Richard Y Hsia

Vincent J Silverio

Thomas V Kurien

David G Kemp, Ii

Herbert M Zydney

An adjunct unit provides Incoming Caller Line Identification (ICLID) capability for a communication system. The adjunct unit interposed between the control unit and station sets of a communication system obtains ICLID from ringing central office lines and monitors signalling between the control unit and station sets to determine which stations are to receive the ICLID information. Using prestored database information the ICLID information can be used to obtain the calling party name for output to the station sets. The adjunct unit also outputs ICLID information to an application processor which stores calling records for the system.

Calling line identification adjunct for use with a communication system

A cartridge comprising circuitry and program instructions is added to a processor controlled telephone communication system to selectively change the operating system in accordance with the cartridge used.

Programmable cartridge telephone communication system

Growing community of inventors

Middletown, NJ, United States of America

Joseph M Bennett