Apparatus for recording, transmission or reproduction of sound and images; automatic telephone exchanges; camcorders; cases for telephones; computer firmware for use in database management, use as a spreadsheet, word processing; computer hardware for communicating audio, video and data between computers via a global computer network, wide-area computer networks, and peer-to-peer computer networks; computer network servers; desk or car mounted units incorporating a loudspeaker to allow a telephone handset to be used hands-free; digital telephones; digital video cameras; single-channel radio communication machines and apparatus for fixed stations; telecommunication exchangers; telephone answering machines; telephone receivers; telephone sets; telephone transmitters; video cameras; video telephones; wireless communication devices for voice, data or image transmission; wireless telephones; wireless television set for providing video conferencing and telephone service over the Internet