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. 16, 2004
Filed:
Mar. 02, 2000
Hideo Yamashita, Tokyo, JP;
NEC Infrontia Corporation, Kawasaki, JP;
Abstract
An Internet communication system is disclosed, that comprises a plurality of ISDN (Integrated Services Digital network) lines, an Internet network connected to the ISDN lines using IP (Internet Protocol) as a common protocol, at least one button telephone apparatus connected to the ISDN lines, and at least one telephone unit connected to the button telephone apparatus, wherein the button telephone apparatus has a selecting means for selecting a conventional telephone function or an Internet telephone function, wherein when the selecting means selects the Internet telephone function, the button telephone apparatus converts dial data received from the telephone unit into an IP address, the dial data representing a call destination, converts data of the audio signal received from the telephone unit into IP packets, and transmits the IP packets to the Internet network.