20-20 IXP

Business telephone switching hardware and related software, namely, digital circuit switching and packet switching system consisting of analog and digital trunk interfaces for converting analog voice signals, or digitally encoded voice signals, to analog or digital signals and protocols, local area network interfaces for transporting data packets to, and receiving data packets from computers, routers, servers and private branch exchanges (PBXs), analog and digital telephones, switching matrix for connecting telephones to other telephones, telephones to trunks, or trunks to trunks, and software for routing voice calls and data, execution of telephone features and management of user defined features in communications switching networks, all sold as a unit