Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Sinal de assinante ocupado-pt#Sense
Optagetsignal-da#Sense
Signal for abonnent optaget-da#Sense
Teilnehmer-Besetztzeichen-de#Sense
Señal de abonado ocupado-es#Sense
Subscriber-busy signal-en#Sense
Segnale di abbonato occupato-it#Sense
Sinal de ocupado-pt#Sense
Signal d'abonné occupé-fr#Sense
Abonnee-bezetsignaal-nl#Sense
Kutsuttu liittymä varattu-fi#Sense
Upptagetton-sv#Sense