9 Communication apparatus and instruments, namely, telephony systems comprising voice switches, key systems, key hybrid switch systems and intercom switches; computers, computer hardware, namely, desktop computers and severs; software and firmware for use in global communications for transmitting and monitoring audio over a network; blank magnetic data carriers, blank magnetic computer tapes, magnetic coded cards and blank floppy disks; telephone answering machines; CD ROM's for media storage and data storage; blank video tapes, blank video cassettes, blank video disks, blank compact disks for reproducing sound and visual images; computer monitors; microphones; sound reproduction apparatus, namely, speakers, headphones and handsets; telephones, audio and video receivers, television sets, telephone, audio and video transmitters, electrical wires; telecommunication transmitters; video tape recorders, projection screens; computer hardware for accessing databases via global computer networks, namely, corporate global computer networks and corporate intranets and close user group extranets