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:
Nov. 19, 2013
Filed:
Jun. 03, 2009
Naoto Ogura, Tokyo, JP;
Naoto Ogura, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An IP (Internet Protocol) telephone system according to the present invention is an IP telephone system including an IP telephone terminal communicating with an opposite party using SIP (Session Initiation Protocol), and a network device transferring a packet from the IP telephone terminal, wherein the IP telephone terminal includes a CPU (Central Processing Unit) transmitting an SIP packet indicating an e-mail address related to a telephone number of the opposite party when the terminal resides in a non-disaster area and calls the opposite party in a disaster area with a disaster mode being set, and the network device includes an SIP packet processing part terminating an SIP packet whose destination is an e-mail address, an e-mail creation part converting a voice packet of RTP (Real Time Protocol) from the IP telephone terminal into text data and creating an e-mail, and a packet transmitting part transmitting the e-mail to the opposite party.