ions in the network elements. Figure 4.5 presents an example of a detailed signalling plan for an example network. The signalling definitions for the example network are presented in Table 4.5 and signalling linkset definitions are presented in Table 4.6. Detailed Network Planning Table 4.4 Routing plan example Originating Point Destination Alternative 0 Alternative 1 MSC01 PSTN01 Direct MSC02 MSC02 Direct MSC03 MSC03 Direct MSC02 MSC04 MSC03 MSC02 MSC02 PSTN01 Direct MSC01 MSC01 Direct MSC03 MSC03 Direct MSC04 MSC04 Direct MSC03 MSC03 PSTN01 MSC01 MSC02 MSC01 Direct MSC02 MSC02 Direct MSC01 MSC04 Direct MSC02 MSC04 PSTN01 MSC02 MSC03 MSC01 MSC03 MSC02 MSC02 Direct MSC03 MSC03 Direct MSC02 Table 4.5 Example of signalling definitions for the MSC (NA, national) Signalling Signalling Signalling point Global title point name network code (SPC) CC + NDC + SN PSTN1 MSC01 NA0/NA1 254 733 000001 MSC02 NA0/NA1 254 733 000002 MSC03 254 733 000003 MSC04 254 733 000004 HLR01 254 733 000101 SMS01 254 733 000201 SCP01 254 733 000210 MSC01 MSC03 PSTN01 MSC02 MSC04 Figure 4.4 Example network for routing Core Network Planning and Optimisation Table 4.6 Example of a signalling link set definitions table Signalling Signalling Originating Destination Destination Number Signalling link point name network point code (OPC) point name point code (DPC) of links bit rate MSC01 PSTN1 MSC02 PSTN1 MSC01 HLR01 MSC02 MSC03 SMS01 MSC02 MSC03 MSC04 SCP01 MSC03 MSC04 HLR01 SMS01 MSC04 SCP01 Detailed Numbering Plan The detailed numbering plan is provided by the operator. It consists of an allocated numbering range for the network MSISDN numbers in the E.164 format. It also contains the allocated IMSI number ranges in the E.212 format. The operator may also divide the provided number ranges for different purposes in the network, i.e. engineering numbers and subscriber MSISDN number allocations. HLR01 SMSC01 MSC01 PSTN01 MSC03 MSC02 MSC04 SCP01 Figure 4.5 Detailed signalling plan (SMSC, short message service centre) Network Evolution Table 4.7 Numbe