rns: peer-to-peer (P2P), person-to-content (P2C), person-to-person (also P2P), mobile media, wireless Internet. The Overall Picture of Convergence Figure 3.24 illustrates the development within P2P and P2C. P2C is most dynamic and the continuous development requires more and more support. The support is concentrated in four areas: Support to end-user services beyond traditional voice and plain data communication. Example: positioning (service enabler). Support to enterprises and content and application providers or any other external actor in a B2B or B2C relationship. Example: suitable interfaces and e-commerce functions. Support for the operator business processes, such as billing. Access to functions in the core and access networks The P2C support materializes into a service layer with a service framework as a core. See Figure 3.24. = non-telecom solutions Person Person Content source Books Media Content Radio consumer +supplementary services. Applications with enablers Application support 1980s +IN services +Internet browser "channel" Mail order, client Server B2C/B2B Possibly MVNO as support Solutions Positioning new sales MP3 support migrating to channel MMS support Today architecture support = Bit pipe provision Cooperation application = Added value provider-actor Supporting framework Figure 3.24 Communication modes and their development Networks and Technologies P2P is often used to denote exchange of music and messages among end users. Peer-to-peer communication also exists between computers. Peer-to-peer computing is the sharing of computer resources and services by direct exchange between systems. These resources and services include the exchange of information, processing cycles, cache storage and disk storage of files. Peer-to-peer computing takes advantage of existing desktop computing power and networking connectivity. In a peer-to-peer architecture, computers that have traditionally been used solely as clients communicate directly among themselves and can act as both clients and servers, assuming 