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ETSI EN 301 254
- Private Integrated Services Network (PISN); Specification, functional models and information flows; Advice of Charge (AoC) supplementary services [ISO/IEC 15049 (1997), modified]
- standard by European Telecommunications Standards Institute, 10/01/1998
- Publisher: ETSI
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Contains stage 1 and stage 2 description of the advice of charge supplementary service. See ECMA DTR/ECMA-0002 (ECMA-TR/SVC) for a description of the advice of charge supplementary service. See ENV 41 005 for definition of stage 1 and 2. Scope is currently limited to transport of public ISDN information within PISNs