Method for verifying access authorization for voice telephony in a fixed network line or mobile telephone line as well as a communications network

US7035386B1 · kind B1 · utility

Assignee

• DEUTSCHE TELEKOM AG · DE

Inventors

• Axel Susen · Aachen, DE
• Stefan Brock · Sankt Augustin, DE

Key dates

• Filing date: Aug 30, 1999
• Grant date: Apr 25, 2006
• Expiry date: Aug 30, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M2207/12
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A method for verifying access authorization for voice telephony in a fixed network line or mobile telephone line, as well as a communications network having such access authorization verification are described. The access authorization is verified by analysis of a voice signal which was entered by the subscriber placing the call, before or during a call in progress. In one variant, the voice signal is entered as a password before the connection is established; in another variant, voice signals are analyzed for voice recognition and subscriber identification, the same voice signals also being transmitted to the person being called, making concealed access verification possible which does not hamper the normal flow of conversation.