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• ITU-T RECOMMENDATION I.251.5 (1988)
• 5 I.251.5 - Connected Line Identification Presentation
  • 5.1 Definition
  • 5.2 Description
  • 5.3 Procedures
  • 5.4 Network capabilities for charging
  • 5.5 Interworking requirements
  • 5.6 Interaction with other supplementary services
  • 5.7 Dynamic description