Multimedia NGNs allow multimedia services to be offered to users with broadband access such as xDSL, cable, WiFi/WiFiMax, EDGE/UMTS, 4G, and the like. Multimedia NGN is an architecture that offers multimedia services (such as voice and video messaging, audio/video conferencing, voice/video ring-back tone) for users equipped with IP multimedia terminals. This enables the operator to innovate in terms of services compared to NGN telephony, which can offer only telephone services.
In what follows we consider multimedia NGNs and their impact for different stakeholders (operator, service provider and consumer).