Learn how to transition to IMS architecture, communicate with legacy networks, control sessions using SIP, and customers to connect to network services. in-depth coverage of the latest IMS security, business intelligence, customer service, and billing procedures is also included. Migration of legacy networks to IMS-based technologyUse Proxy, Interrogating, and Serving Call Session Control FunctionsInterface with TDM-based wireless, wireline, and VoIP networksHandle private and public user identity, domain name, and SIP session URLsEstablish and customers to connect to a network of reliable network servicesDeploy , access, and user level securityPrevent eavesdropping, DoS, message disruption, and amplification exploitsTrack services provided and the cost of customers using DIAMETER and CDRs