Welcome to the World Tone Database, dedicated to the A-Z of international call progress tones. From here you can research tone parameters in national tone plans and hear the tones on-line.
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|Denmark||Busy tone - I||425||0.25 on 0.25 off|
|Denmark||Busy tone - II, plmn/gsm||425||0.5 on 0.5 off|
|Denmark||Call waiting tone - I||425||0.2 on 0.2 off 0.2 on 3.6 off 0.2 on 0.2 off 0.2 on|
|Denmark||Call waiting tone - II, plmn/gsm|
|Denmark||Congestion tone - I|
|Denmark||Congestion tone - II, plmn/gsm|
|Denmark||Special information tone|