In a revolution that will once more rewrite all the rules of running a phone company or a telephone equipment company, there is now a widespread conviction that, over time, Asynchronous Transfer Mode switches will replace today’s digital telephone exchanges – devaluing the investment of the major equipment makers in exchange technology, opening up the market to companies such as Newbridge Networks Corp that do not make telephone exchanges, and forcing telephone operators to write off their current exchanges faster than they had planned. Against that day, Nynex Corp yesterday announced alliances with IBM Corp, Pacific Telesis Group Inc, Bell Atlantic Corp and Newbridge Networks to develop and construct a high-speed Frame Relay Corridor between New York City and northern New Jersey from early 1996 with Bell Atlantic and a Frame Relay, Asynchronous Mode and multimedia messagng link with Pacific Telesis to California to deliver speech, data, image and video to the corporate desktop. The alliances are billed as part of Nynex’s strategic Impower vision to mobilise local area networks, groupware, messaging, Internet access, applications software accessible from the network, and systems integration to manage everything. IBM’s contribution will be an integrated and transparent network computing system that will be able to be accessed throughout the Nynex network.