scope:

This second part of ETS 300 182 is applicable to the stage three of the Advice of Charge (AOC) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators at the T reference point or coincident S and T reference point (as defined in CCITT Recommendation I.411 [12]) by means of the Digital Subscriber Signalling System No. one (DSS1). Stage three identifies the protocol procedures and switching functions needed to support a telecommunications service (see CCITT Recommendation I.130 [11]).

This ETS provides the Protocol Implementation Conformance Statement (PICS) proforma for the ISDN DSS1 AOC supplementary service protocol as specified in ETSs 300 178-180 [1,2,3] (stage one), ETS 300 181 [4] (stage two) and ETS 300 182-1 [5 (stage three)] in compliance with the relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [10].