CCITT Rec. Q.81.5 – NUMBER IDENTIFICATION SUPPLEMENTARY SERVICES – CONNECTED LINE IDENTIFICATION PRESENTATION (COLP)
5.1 General
5.2 Description
5.3 Derivation of a functional model
5.4 Information flow diagrams
5.5 SDL diagrams for functional entities
5.6 Functional entity actions
5.7 Allocation of functional entities to physical location