This standard defines the stage two of the Advice of Charge (AOC) supplementary service for the panEuropean Integrated Services Digital Network (ISDN) as provided by the European public telecommunications operators. Stage two identifies the functional capabilities and the information flows needed to support the service description. The stage two description also identifies user operations not directly associated with a call (see CCITT Recommendation I.130 [1]). This standard is defined according to the methodology specified in CCITT Recommendation Q.65 [2].
PUBLISHED
SSH ETS 300 181:1993 ed.1
60.60
Standard published
4 korr 2024