Over deze norm
Specifies the signalling protocol for the support of the Do Not Disturb and Do Not Disturb Override supplementary services (SS-DND) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a Private Integrated Services Network (PISN). SS-DND is a supplementary service which enables a served user to cause the PISN to reject any calls, or just those associated with a specified basic service, addressed to the served user's PISN number. The calling user is given an indication. Incoming calls are rejected as long as the service is active. The served user's outgoing service is unaffected. SS-DNDO is a supplementary service which enables a served user to override SS-DND at a called number;that is, to allow the call to proceed as if the called user had not activated SS-DND.
|Nederlandse titel||Informatietechnologie - Telecommunicatie en gegevensuitwisseling tussen systemen - Niet-openbare geïntegreerde dienstennetwerken - PISN - Protocol voor het signaleren van uitwisseling - Aanvullende diensten voor "niet storen" en het negeren van "niet storen"|
|Engelse titel||Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - PISN - Inter-exchange signalling protocol - Do not disturb and do not disturb override supplementary services|