Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3226
Is Reference of Koputus-fi#Sense
Warnvorrichtung im Fernsprechwesen-de#Sense
Uppringning-sv#Sense
Signal d'appel en attente-fr#Sense
Waarschuwing in telefonie-nl#Sense
Tilringning-da#Sense
Alerting in telephony-en#Sense
Συναγερμική ειδοποίηση τηλεφωνίας-el#Sense
Telefonía de alertas entrantes-es#Sense
Aviso de chamada em espera-pt#Sense