TELLABS

TELEPHONE-RELATED SIGNALING AND TRANSMISSON PRODUCTS INCLUDING DIGITAL SYSTEMS PRODUCTS, DATA COMMUNICATION PRODUCTS, AND VOICE TRANSMISSION PRODUCTS, SUCH DIGITAL SYSTEMS PRODUCTS COMPRISING DIGITAL CROSS-CONNECTS, VOICE TRANSCODERS, T1 CHANNEL SERVICE UNITS, AND [ DIGITAL ECHO CANCELLERS ] ; SUCH DATA COMMUNICATION PRODUCTS COMPRISING PACKET SWITCHES, STATISTICAL MULTIPLEXERS, NETWORK MONITORING SOFTWARE AND SYSTEMS COMPOSED OF COMPUTERS, COMPUTER PERIPHERALS, AND COMPUTER PROGRAMS, AND T1 NETWORKING MULTIPLEXERS AND NODAL SWITCHES; SUCH VOICE TRANSMISSION PRODUCTS COMPRISING [ LINE AMPLIFIERS AND REPEATERS, REMOTE-ALIGN DATA STATION TERMINATION AND NETWORK CHANNEL TERMINATING MODULES, DISTRIBUTIVE DATA BRIDGING MODULES, SIGNALING AND SIGNALING CONVERSION MODULES ], POWER AND RINGING SUPPLIES, [ CONFERENCING/ALERTING MODULES, SELECTIVE SIGNALING AND TELECONFERENCING MODULES ], METAL AND PLASTIC MOUNTING SHELVES, APPARATUS CASES, AND PREWIRED ASSEMBLIES

DESIGN OF TELECOMMUNICATIONS SYSTEMS