9 COMPUTER HARDWARE IN THE FIELD OF VOICE PROCESSING; CIRCUIT CARDS USED IN VOICE PROCESSING SYSTEMS; DIGITAL TELEPHONY INTERFACES; COMPONENTS FOR DIGITAL VOICE AND AUTOMATED TELEPHONY, NAMELY, DIGITAL TELEPHONY INTERFACES, VOICE DIGITIZING INTERFACES FOR COMPUTERS AND COMPUTER CONTROL TELEPHONE INTERFACES; AUDIO COUPLING INTERFACES BETWEEN TELEPHONE AND COMPUTERS, AND DIGITIZED VOICE-EDITING COMPUTER PROGRAMS IN THE FIELD OF VOICE PROCESSING, AUDIO MULTIPLEXERS; COMPUTER SOFTWARE FOR USE IN THE VOICE PROCESSING FIELD, NAMELY, DIGITIZED VOICE-EDITING COMPUTER PROGRAMS IN THE FIELD OF VOICE PROCESSING; COMPUTER TELEPHONY SOFTWARE FOR USE WITH A PERSONAL COMPUTER TO ALLOW THE COMPUTER USER TO PERFORM TELEPHONE AND FACSIMILE FUNCTIONS VIA THE COMPUTER; PLUG-IN CIRCUIT BOARDS AND COMPUTER PROGRAMS WHICH PROVIDE COMMUNICATIONS BETWEEN A PERSONAL COMPUTER AND A FACSIMILE MACHINE; COMPUTER COMMUNICATIONS EQUIPMENT, NAMELY, MODEMS, PRINTED CIRCUIT CARDS AND COMPUTER PROGRAMS FOR SYNCHRONOUS COMMUNICATION BETWEEN MAINFRAME COMPUTERS, MICROCOMPUTERS, MINI-COMPUTERS, PERSONAL COMPUTERS AND FACSIMILE MACHINES