ITU Q.86.3:1993
ITU Q.86.3:1993 Reverse Charging (rev) Describes the Stage 2 of the Reverse Charging supplementary service, supported by an ISDN. The Stage 2 descriptions are comprised of the switching functions and signalling information flows.
Table of Contents
3ReverseCharging(REV)3.1Scope
3.2References
3.3Definitions
3.4Symbolsandabbreviations
3.5Description
3.6Derivationofthefunctionalmodel
3.7Informationflows
3.8SDLdiagramsforfunctionalentities
3.9Functionalentityactions(FEAs)
3.10Allocationoffunctionalentitiestophysical
locations
AppendixI-Inter-workingrequirement
I.1Inter-workingofReverseChargingwithPSTN