Iskratel employs over 400 developers writing complex software to drive advanced communications technologies. These applications typically include between 1 and 1.5 million lines of code, written in C, SDL, Java and C++. To identify the best testing solution to eliminate bugs early in the development lifecycle, Iskratel conducted a head-to-head competitive evaluation of three products, and ultimately selected Klocwork's source code analysis tools. This case study looks at how Iskratel uses automated source code analysis to effectively optimize software quality.