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• ITU-T Rec. X.110 (1988)
• 1 Introduction
• 2 Description of an international route
• 3 General routing principles
• 4 Specific routing possibilities through the IPDN
  • 4.1 Routing possibilities required for maintaining the quality of service
  • 4.2 Service characteristics associated with a route
  • 4.3 Specific conditions associated with a route
• 5 Routing procedures applicable to international interworking between PDNs of the same type and also between PSPDNs...
• 6 Identification of IDSEs and ISDNs involved in an international call in the short term
• 7 Multiple IDSEs provided by one Administration
  • 7.1 In the originating or destination country
  • 7.2 In a transit country
• 8 International routing plan
• 9 Network information required to enable optimum routings to be planned
• ANNEX A – Terms and definitions related to routing in the PDN
• A.1 traffic route
• A.2 alternative traffic route
• A.3 call route
• A.4 call routing
• A.5 call rerouting
• A.6 originating PDN
• A.7 destination PDN
• ANNEX B – The use of satellite links in overall CSPDN routes
• B.1 General considerations
• B.2 Principles in each PDN
• ANNEX C – Routing Information
• APPENDIX I – International routing plan - examples of routes