Service providers are looking to new enhanced services to boost average revenue per user (ARPU). Because the success of particular services is difficult to predict, service providers need a dynamic architecture which will allow them to offer promising new services quickly, add resources for successful services as demand increases, and downplay or remove unsuccessful services easily. Such an architecture is the IP Multimedia Subsystem (IMS), a modular standards-based service platform that uses the Internet Protocol (IP) and the Session Initiation Protocol (SIP). Because of the heavy technical demands placed on an IMS, AdvancedTCA promises to be an ideal platform for IMS infrastructure deployment.