Over the last few years, the number of organizations that deliver information technology services is increased. These organizations always need to improve service quality level for optimizing the customer's interaction, satisfaction and enhances the efficiency of the business operation. Thus, service quality continues to be a challenging topic in contemporary quality management theory and practice. Unlike products, services are not easily measured, tested or controlled for quality. This paper concentrates on improving the quality of service in a telecommunications technical support Call Center (CC) through the integration framework of Project Management (PM) and Six Sigma (SS) to control the attribute data.