TELECOMMUNICATION EQUIPMENT FOR TRANSMISSION OF VOICE, FACSIMILE, AND DATA SIGNALS OVER COPPER WIRE INFRASTRUCTURE, NAMELY MULTIPLEX ERS, VOICE CODERS FOR SYNTHESIZING SPEECH, MODEMS, TRANSMITTERS, RECEIVERS, TRANSCEIVERS, CONTROLLERS, SWITCHES, ELEMENT MANAGERS, CONCENTRATORS, ROUTERS, SERVERS, INTEGRATED CIRCUITS AND INTERFACES; TELECOMMUNICATION GATEWAY SOFTWARE AND HARDWARE FOR CONVEYING VOICE, FACSIMILE, AND DATA SIGNALS OVER COPPER WIRE INFRASTRUCTURE