PERSONAL SWITCH

VOICE AND DATA COMMUNICATION COMPUTER HARDWARE AND FIRMWARE FOR INTEGRATING TELEPHONE CALLS WITH PC APPLICATIONS; COMPUTER HARDWARE AND FIRMWARE FOR USE IN THE FIELD OF COMPUTER TELEPHONY INTEGRATION TO CONNECT BUSINESS DIGITAL TELEPHONES TO PCS; UNIVERSAL SERIAL BUS (USB) CONNECTIVITY DEVICE AT THE DESKTOP TO INTERFACE BETWEEN INTERNET PROTOCOL (IP) ENVIRONMENT AND CIRCUIT-SWITCHED TELEPHONY SYSTEMS