Data and voice messaging system

US7447739B1 · kind B1 · utility

Assignee

• AT&T Intellectual Property I, L.P. · US

Inventors

• Philip Cunetto · Austin, US
• Thomas Adams · Austin, US
• John E. Lemay · Austin, US
• Chien-Chun Lu · Taipei, TW
• Timothy Paul Schroeder · Mason, US
• Marco Schneider · Austin, US
• Melody Ho · Austin, US

Key dates

• Filing date: Sep 19, 2002
• Grant date: Nov 4, 2008
• Expiry date: Jun 20, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04M2203/4509
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A messaging system is disclosed that includes an Internet Protocol switching network, an Internet access subsystem coupled to the Internet Protocol switching network via a first communication link, a voice access subsystem coupled to the Internet Protocol switching network via a second communication link, a mail subsystem coupled to the Internet Protocol switching network via a third communication link, and a storage subsystem coupled to the Internet Protocol switching network. The first and second communication links transfer data according to different data protocol formats.