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:
May. 22, 1990
Filed:
Feb. 28, 1989
Gautam Biswas, Austin, TX (US);
David C Black, Austin, TX (US);
Michael G Duncan, Austin, TX (US);
Gary R Key, Round Rock, TX (US);
Gordon D Leak, Austin, TX (US);
Robert D Whittington, Pflugerville, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A dynamically configurable telephone 10 has an intelligent controller 42 which implements a communication protocol to receive commands and parameters and to transmit status indicative of particular phone features. Upon receipt of the parameters, the controller translates the parameters into configuration settings for the telephone and also stores the parameters in a non-volatile memory 44 if such is installed. The telephone accommodates many different country-specific requirements without hardware or firmware changes being made to the phone itself. The controller returns solicited or unsolicited status messages, or events, to a PABX 14 over a bit serial digital data link 12. An event can be indicative of error conditions, such as data packet errors, timeouts, or data storage errors. An event can also be a reply to a previously received command, such as configuration status, internal test results, a phone serial number or a controller firmware revision level.