The Internet and the cellular telephony system are the two most influential communication systems of the last years. The arrival of the IP Multimedia Subsystem (IMS) promises to help service providers to deploy a complete array of real-time, customized business and consumer multimedia services over any access network. IMS is an integrated solution that defines a generic architecture for offering Voice over IP (VoIP) and advanced multimedia services. This project describes a hybrid fixed-mobile peer-to-peer superdistribution system deployed over an IMS platform. This superdistribution service is aligned with the current interests of telecommunication operators that desire to offer services with large user acceptance and that involve a massive access to the service without collapsing their network infrastructure. Operators can increase their revenues for connectivity and Digital Rights Management (DRM)-based license distribution of the multimedia content, depending on the content and on the desired business model.