OPTIS

COMPUTER SOFTWARE FOR MONITORING, TESTING, ANALYZING, AND TROUBLESHOOTING OF DATA AND PHYSICAL PROTOCOLS OF DSl, DS3, AND SONET CIRCUITS OF TELECOMMUNICATIONS NETWORKS, NAMELY PUBLIC TELEPHONE SWITCHED NETWORKS (PTSN), PRIVATE TELEPHONE NETWORKS, AND GLOBAL DATA NETWORKS; COMPUTER PERIPHERALS FOR TESTING AND ANALYZING TELECOMMUNICATION NETWORKS; COMPUTERS AND INSTRUCTIONAL MANUALS SOLD AS A UNIT FOR TESTING AND ANALYZING TELECOMMUNICATIONS NETWORKS