In recent years there have been several solutions for contact centers to improve customer service levels and reduce costs. Although these solutions are designed to mitigate this problem, the converged voice and data based on Internet Protocol (IP) core technology which provides enhanced functionality, optimum performance and effective implementation of these solutions in the contact center. The Voice over Internet Protocol (VoIP) considered complex and questionable just a few years ago is rapidly becoming a standard technology for the contact center today. . The level of knowledge of pure IP technology end-user level contact centers is extremely low. Unlike other contact center solutions such as multi-channel CRM, self-service automation and optimization of staff, the wealth of benefits and different schemes that exist for IP technology have not been transparent for the mass market VoIP ...