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.:

US 7720208 B1

PDF
Full Text
Expired
Date of Patent:
May. 18, 2010

Filed:

Apr. 15, 2002
Applicants:

Azita E. Kia, Santa Barbara, CA (US);

Cary Fitzgerald, Pleasanton, CA (US);

David R. Oran, Acton, MA (US);

Inventors:

Azita E. Kia, Santa Barbara, CA (US);

Cary FitzGerald, Pleasanton, CA (US);

David R. Oran, Acton, MA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 17/00 (2006.01); H04M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A call authorization system moves state maintenance for authorization based phone calls from a central authorization server to different gateways in a packet switched network. A simple authorization session protocol is used between the authorization server and the gateways to minimize network traffic. The authorization session protocol releases the authorization server from having to maintain states for open authorization based phone calls.


Find Patent Forward Citations

Quick Actions:

Kia, Azita. (2010). Method and apparatus for authorization based phone calls in packet switched networks (U.S. Patent No. 7720208). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7720208

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…