OPTICAL, ELECTROTECHNICAL AND ELECTRONIC APPARATUS AND DEVICES, AND ELECTRICAL DEVICES FOR RECORDING, EMISSION, TRANSMISSION, SWITCHING, RECEPTION AND REPRODUCTION AND PROCESSING OF SOUNDS, SIGNALS, CHARACTERS AND IMAGES, NAMELY, COMMUNICATION SERVERS, ROUTERS, SWITCHES, AND GATEWAYS FOR USE IN WIRELESS COMMUNICATIONS SYSTEMS; DEVICES NAMELY ROUTERS, SWITCHES, AND GATEWAYS FOR THE INTEGRATION OF VOICE, IMAGE, TEXT, DATA, MULTIMEDIA, FULL-MOTION VIDEO COMMUNICATIONS IN COMPUTER AND TELECOMMUNI...