The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 1988
Filed:
Sep. 03, 1986
Robert P Brennan, Pakenham, CA;
Joseph Camelon, Richmond, CA;
J Bernard Trudel, Ottawa, CA;
Albert L Hum, Nepean, CA;
Donald G McLeod, Kanata, CA;
Trillium Telephone Systems Inc., Ontario, CA;
Abstract
A subscriber set for connection via tip and ring leads to a remote communication system such as a PABX or centrex. The remote communication system is capable of implementing a plurality of special features such as hold, call transfer, call forward, etc. The set is comprised of a microprocessor and electronic telephone circuit connected to a plurality of programmable function keys, for generating one or more centrex or PBX special feature access code signals in response to depression of predetermined ones of the keys. An LCD display is connected to the microprocessor for generating prompt signals for indicating implementation of predetermined ones of the special features associated with depression of corresponding ones of the keys. The special feature access code signals are programmed into the set such that the set may be used with a variety of PABX and centrex facilities in lieu of expensive proprietary subscriber sets or awkward and difficult to use standard type 2500 sets.