quires an additional part (sometimes implemented as a network: the service network) to cater for a proper utilization of the new possibili- ties offered by the media industry. The new network component implies a need for a coordinated development in the terminal devices and service networks. Networks and Technologies Fundametal Frame Internet plans for: relay 'The horizontal Converge towards common FPs: network" Generic FP view of PLMN, PSTN etc. Control Service Charging management Service Signalling Mobility management Dimensioning Switching Numbering routing Availability (control Synchronisation connectivity O & I M Connectivity resources) resources Network management Traffic Frequency Transmission Organization Figure 3.22 A main point in network design is to cope with converging technologies. The generic FP view uses a mirrored Figure 3.2 to adapt to the shape of Figure 3-22 Content Media industry 'Beyond The circuit world voice' The IP world Applications Voice/MM Voice Logic, support IP service Voice VolP/MMoIP Service enablers Adaptations Adaptations Service enablers Adaptation Control IN, HLR SIP, H 323 layer ISUP, E 164 IPv4, IPv6 Switching/ TDM/Circuit IP router routing Layer 2 ATM, PPP, FR Transmission Common (SDH, SONET, TDM) Terminal Circuit mode Packet mode IP terminal Dotted ring = Service network Figure 3.23 The collision with media industry, network convergence and FP convergence Further, the service network develops into a key enabling part for new or enhanced applications, with service enablers as a main component. (Service enablers are service- supporting elements in terminals and/or service network such as positioning functions.) See also next section in this chapter and Chapters 5, 8 and 9. Understanding Changing Telecommunications - Building a Successful Telecom Business 3.7 A TECHNO-ECONOMIC VIEW OF THE CONVERGENCE 3.7.1 NEW COMMUNICATION PATTERNS A service network appears in the communication path between person and content. The development requires a new terminology for communication patte