Call centers play a huge role in determining a company’s quality of customer experience because the call center interacts with the organization’s most precious asset: its customers. Therefore, the primary goals of a call center are to achieve the company’s sales objectives by effectively meeting and anticipating customer requirements, as well as to improve customer satisfaction and retention in order to ensure business success. In order to diagnose problems that negatively impact call center technology KPIs, and hence customer experience, organizations must invest in an effective network testing solution. This paper highlights just a few of the ways in which such solutions for call centers have enabled global brands to enhance their quality of customer experience by materially improving their call center KPIs.