Open Networks Engineering (one) of Ann Arbor, MI, will supply nec America of Herndon, VA, with $2.9 million in telecommunications management network software tools and services. one is developing the systems management software for nec America`s vista intelligent access program. vista will employ sonet technology to supply 155-, 52-, 45-, 6.3-, and 1.5-Mbit/sec service in a variety of formats. The management network framework will standardize the way in which telecommunications service providers monitor and control their services.