• ITU-T RECOMMENDATION I.251.4 (1988)
  • 4 I.251.4 - Calling Line Identification Restriction
    • 4.1 Definition
    • 4.2 Description
    • 4.3 Procedures
    • 4.4 Network capabilities for charging
    • 4.5 Interworking requirements
    • 4.6 Interaction with other supplementary services
    • 4.7 Dynamic description