42 PROVIDING DESIGN, DEVELOPMENT, DEPLOYMENT, AND ARCHITECTURE SERVICES TO THE ORDER AND/OR SPECIFICATION OF OTHERS IN THE FIELD OF OPTICAL TRANSMISSION, RECEIVING, AND NETWORKING EQUIPMENT NAMELY, TRANSMITTERS, RECEIVERS, SWITCHES, CROSS-CONNECTS, ROUTERS, AMPLIFIERS, ADD/DROP MULTIPLESERS, GRATINGS, MULTIPLEXERS AND DEMULTIPLEXERS, AND OPTICAL NETWORK AND ELEMENT MANAGEMENT, PLANNING, AND INTERFACE SOFTWARE AND COMPUTER SYSTEMS, AND MAINTENANCE SERVICES FOR OPTICAL NETWORK SOFTWARE, ELEMENT MANAGEMENT SOFTWARE, PLANNING SOFTWARE, AND INTERFACE SOFTWARE, AND OPTICAL SYSTEMS AND NETWORKS EMPLOYING SUCH NAMED OPTICAL EQUIPMENT, AND CONSULTATION SERVICES THERETO