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. 07, 2006
Filed:
Sep. 30, 1998
Applicants:
Wing-kuen Chung, Sunnyvale, CA (US);
Cherng-daw Hwang, San Jose, CA (US);
Michael Tasker, Pleasanton, CA (US);
Inventors:
Wing-Kuen Chung, Sunnyvale, CA (US);
Cherng-Daw Hwang, San Jose, CA (US);
Michael Tasker, Pleasanton, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 1/16 (2006.01); H04J 3/14 (2006.01); H04M 7/00 (2006.01); H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method is described that comprises receiving a ringing voltage or tip-ground signal at a first telephone interface. Then, indicating to a control system at an interface that the ringing voltage or tip-ground signal is appearing at the first telephone interface. Then, calling a remote device over a packet data network while maintaining the first telephone interface in an on-hook state. The control system causes the calling in response to the indicating.