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:
Apr. 26, 2005
Filed:
Feb. 18, 2000
David P. Ress, Cary, NC (US);
Xuewen LI, Cary, NC (US);
Denise J. Ingram, Morrisville, NC (US);
Gregory Robert Utas, Irving, TX (US);
David P. Ress, Cary, NC (US);
Xuewen Li, Cary, NC (US);
Denise J. Ingram, Morrisville, NC (US);
Gregory Robert Utas, Irving, TX (US);
Nortel Networks Limited, St. Laurent, CA;
Abstract
A method and an apparatus for interworking between internet protocol (IP) telephony protocols includes a call server. The call server includes a first protocol agent for communicating with a first protocol device according to a first protocol. A second protocol agent communicates with a second protocol device according to a second protocol. An interworking agent provides functions usable by the first and second protocol agents to communicate with each other according to a third protocol. The third protocol is a superset of functions provided by the first and second protocols.