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:
Mar. 15, 1983
Filed:
Nov. 10, 1980
Patrick R Beirne, Stittsville, CA;
Mitel Corporation, Ontario, CA;
Abstract
A telephone switching system for interconnection of a plurality of lines with a number of trunks in which telephone sets having no trunk access pushbuttons can access particular trunks upon command. Upon initiating a command signal, i.e. by a subscriber dialing particular access codes, the switching system provides a voiced enunciation of the number of an idle trunk or the number of which trunk is on 'hold'. The subscriber can then dial the trunk number followed by the number of an outgoing call, or an access code followed by the held trunk number whereby the line is connected to the particular accessed trunk. The system is comprised of a control system, apparatus for connecting a plurality of subscriber's lines to the control system, apparatus for connecting a plurality of trunks to the control system, a junctor system for interconnecting subscribers' lines and trunks under control of the control system, a voice announcement system connected to the control system, apparatus for connecting the voice announcement system to the junctor system upon receipt by the control system of a command signal from a line connected to a subscriber's set, and for enabling the generation of a predetermined announcement and applying it to the line in response thereto, which is designative of an idle or held trunk. The system thus provides the featues of a key telephone system without the requirement for use of multi-button key telephone sets and can also provide features normally associated with a PABX to such subscribers, while eliminating the requirement for an operator's console normally associated with a PABX.