AURORA, Ill.--(BUSINESS WIRE)--Westell Technologies, Inc. (NASDAQ:WSTL), a global leader of intelligent site and outside plant solutions, today announced that it has acquired Cellular Specialties, Inc. (CSI), an industry leader in the design and development of in-building wireless solutions including distributed antenna systems (DAS) products and small cell connectivity equipment. The all-cash purchase price was $39 million. “Cellular Specialties is a great complement to the Westell solutions p