Take Part in The Future of Convergence Wireless / Wireline IP multimedia subsystem (IMS), established as a foundation for the convergence of wireless and wired future, is the foundation that will facilitate easy deployment in new, rich, personal multimedia communications services that mix telecom and data services. Designers, planners, and researchers need to make full use of communications systems is happening with the convergence of technology if they want to be the ones to provide end users with new and efficient service as a cost-effective as innovative. To provide researchers and technicians with the tools they need to optimize their role in the revolution of communication, IP Multimedia Subsystem (IMS) Handbook presents all the technical aspects of IMS are required to support digital traffic growth and implementation of the underlying network.