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• ITU-T Rec. D.11 (11/1988) SPECIAL TARIFF PRINCIPLES FOR INTERNATIONAL PACKET-SWITCHED PUBLIC DATA COMMUNICATION SERVICES BY MEANS OF THE VIRTUAL CALL FACILITY
• Preamble
• 1 Definition
• 2 Principles for the application of charges
  • 2.1 Chargeable calls
• 3 Tariff components
  • 3.2 Network access component
  • 3.3 Network utilization component