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. 08, 2001
Filed:
Jun. 22, 1998
Naoyuki Kakizaki, Yokohama, JP;
Katsuhisa Sato, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A system for delivering a caller's phone number to a called subscriber in an Internet telephony system. A calling subscriber (caller) first makes a call to its local server (caller-side server) to request an Internet-based call connection to a remote subscriber (callee). A first transmission unit, disposed in a caller-side local switch, transmits the caller's phone number to the caller-side server through a first control channel. A second transmission unit disposed in the caller-side server then transmits, over the Internet, the caller's phone number to another server (caller-side server) that is local to the callee. The caller's phone number is now available in the callee-side server. A caller number acquisition unit, disposed in the callee-side local switch, makes access to that information by using a second control channel. In this way, the callee-side local switch obtains the phone number of the caller.