Advice of Charge: Charging Information at the End of the Call (AOC-E) - Integrated Services Digital Network (ISDN) - Service Capabilities - Supplementary Services in ISDN (Study Group I) 10 pp
The AOC-E supplementary service shall apply to the basic access and the primary rate access.The AOC-E supplementary service provides the served user with charging information for a call when the call is terminated.The information can be sent for all calls,or on a per call basis. The charge information given shall relate to the charges incurred on the network to which the served user is attached.