Patent ID: 6516058
Filing Date: 2003-02-04
Classification: H04M,Y10S

Abstract:
A voice network access system that provides the same security as that afforded by a data network, the voice network access system comprising:a private automatic branch exchange; and a one-time password system, which is used as an access authentication system, and which is applied for a voice network that is constituted by said private automatic branch exchange, wherein specifications for said private automatic branch exchange are that exchange of sender number information that is received across a public network is enabled, and wherein said private automatic branch exchange includes: an external interface; a computer telephony server that is connected via said external interface; and a voice response device connected by a line circuit, and wherein said private automatic branch exchange calls said voice response device upon receiving a call from a public network switchboard subscriber, while at the same time transmitting said sender number information to said computer telephony server.