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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|Norway||Busy tone||425||0.5 on 0.5 off|
|Norway||Call waiting tone||425||0.2 on 0.6 off 0.2 on 10.0 off|
|Norway||Confirmation tone||470/425||0.4 on 0.4 on +|
|Norway||Special dial tone|
|Norway||Special information tone|
|Norway||Warning tone - I|
|Norway||Warning tone - II|