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ETSI ETS 300 365
- Private Integrated Services Network (PISN); Specification, functional models and information flows; Call completion supplementary services
- standard by European Telecommunications Standards Institute, 05/01/1996
- Publisher: ETSI
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This European Telecommunication Standard (ETS) specifies the supplementary services Call Completion on Busy Subscriber (SS-CCBS) and Call Completion on No Reply (SS-CCNR), which are applicable to various basic services supported by Private Integrated Services Networks (PISN).