The Pacific Bell Inc arm of Pacific Telesis Group Inc plans to build a communications highway connecting participating California universities, research labs, major hospitals and leading high-tech companies in the San Francisco Bay Area and Los Angeles: to be known as the California Research and Education Network or CalRen, the project will use emerging communications switching and transmission technologies such as Asynchronous Transfer Mode in a network capable of carrying voice, data, video and images concurrently between as many as 80 educational, medical and high-tech industrial organisations in the San Francisco Bay Area, and a similar number in the Los Angeles area.