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Overview SIST EN 300 363 V1.2.1:2005 specifies the requirements, functional models, and information flows for the "Do Not Disturb" (DND) and "Do Not Disturb Override" supplementary services in Privat…
Overview SIST EN 300 363 V1.3.1:2005 is a European standard specifying the functionality, modeling, and information flows for the "Do Not Disturb" (DND) and "Do Not Disturb Override" supplementary se…
Overview ISO/IEC 14842:1996 specifies the Do Not Disturb (SS‑DND) and Do Not Disturb Override (SS‑DNDO) supplementary services for Private Integrated Services Networks (PISN). This International Stan…