ISO/IEC 15051
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Specification, functional model and information flows; Recall supplementary service
Informationstechnik - Telekommunikation und Informationsaustausch zwischen Systemen - Private diensteintegrierende Netze - Spezifikation, Funktionsmodell und Informationsflüsse - Zusatzdienste für Rückruf
Responsible national committee
NA 043 BR-05 SO - Rapporteur group JTC 1/SC 6
Responsible international committee
ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems