1 EXHIBIT 2.1 AGREEMENT AND PLAN OF MERGER OF APPLIED DIGITAL ACCESS, INC. (a Delaware corporation) AND APPLIED DIGITAL ACCESS, INC. (a California corporation) THIS AGREEMENT AND PLAN OF MERGER dated as of December 23, 1997 (this "Agreement") is...Agreement and Plan of Merger • December 23rd, 1997 • Applied Digital Access Inc • Instruments for meas & testing of electricity & elec signals
