NEWS RELEASE                                      EXHIBIT 20.8

FOR IMMEDIATE RELEASE              CONTACT: Thomas P. Scottino  
07/23/98                                    (630) 378-7504


          TELLABS AND COHERENT TO COMPLETE MERGER            

Lisle, Ill.  -- Tellabs, Inc., and Coherent Communications Systems
Corporation have been advised by the staff of the Antitrust Division of
the U.S. Department of Justice that the Division has completed its
review of the merger of Tellabs and Coherent and has determined to take
no further action. Consequently, Tellabs and Coherent anticipate
closing their merger in early August. 

Coherent Communications Systems Corporation designs, manufactures and
markets echo cancellation and conferencing products for major
international telecommunications companies, cellular and PCS providers,
network operators, and Fortune 500 companies. 

Tellabs designs, manufactures, markets and services voice and data
transport and network access systems.  The company's products are used
worldwide by the providers of communications services.  Tellabs stock is
listed on the NASDAQ stock market (TLAB).