
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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Country | Tone | Frequency/Hz | Cadence/s | Audio |
Andorra | Busy tone | 425 | 0.2 on 0.2 off | ![]() |
Andorra | Call waiting tone | 425 | 0.175 on 0.175 off 0.175 on 3.5 off | |
Andorra | Congestion tone | 425 | 0.2 on 0.2 off | |
Andorra | Dial tone | |||
Andorra | Pay tone | |||
Andorra | Ringing tone | |||
Andorra | Second dial tone | |||
Andorra | Special information tone |