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 |
| Mali | Busy tone | 425 | 0.5 on 0.5 off |  |
| Mali | Call waiting tone | 425 | 0.3 on 10.0 off | |
| Mali | Congestion tone | announcement | ||
| Mali | Dial tone | |||
| Mali | Pay tone | |||
| Mali | Ringing tone | |||
| Mali | Route tone | |||
| Mali | Special information tone | |||
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