casting e.g. QoS Price list enablers of the ITU Products document Service Land & building cost structure planning Detailed All other data network data collection pre-processing Traffic measurement External sources Figure 3.20 Fundamental (technical) plans as an input in overall network planning Networks and Technologies architecture with a common bearer for voice and data the network design principles must consequently be reviewed. The plans constitute a cornerstone for the network design plans, for procurement of equipment, system integration and other processes. 3.6.3 SPECIFIC PLANS When looking in more depth at control and traffic resources behaviour we used to find the plans shown in Figure 3.21. Dependability includes measures to maintain availability when faults have occurred. There are often dependencies/relationships between the plans, which was illustrated by Figure 3.2. In a converging phase like the one that is prevailing right now, there is a technological war regarding optimal plans for the converged network. For example, a selection of numbering plans are in use, which is unfortunate. The numbering issue is discussed in Chapter 8, Section 8.8. Example of content of the plans is: Switching and routing plan: network hierarchy, routing rules etc. Numbering plan: trunk codes, subscriber numbers etc. Charging plan: principles for charging of traffic and services etc. Transmission plan: quality requirements and technique for transmission. Synchronization plan: rules for synchronization of nodes in the network. Signalling plan: signalling systems etc. Frequency plan: use of available frequency bands etc. Service plan: service range etc. Mobility management plan: anchoring ('call responsible MSC'), hand-over, roam- ing etc. Telecom business Service Dimensioning Fundamental technical plans Numbering Dependability Charging Routing Control Signalling Service Mobility management O & M production factory Switching Frequency Traffic Transmission resources Organization Synchronization M = Management system Traffic