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 |
| Uganda | Busy tone - I | 425 | 0.5 on 0.5 off |  |
| Uganda | Busy tone - II | 400 | 0.4 on 0.2 off | |
| Uganda | Call waiting tone - I | 425 | 0.15 on 0.15 off 0.15 on 8.0 off | |
| Uganda | Call waiting tone - II | |||
| Uganda | Call waiting tone - II | |||
| Uganda | Congestion tone | |||
| Uganda | Dial tone | |||
| Uganda | Howler tone | |||
| Uganda | Number unobtainable tone | |||
| Uganda | Ringing tone - I | |||
| Uganda | Ringing tone - II | |||
| Uganda | Ringing tone - II | |||
| Uganda | Ringing tone - III | |||
| Uganda | Route tone | |||
| Uganda | Route tone | |||
| Uganda | Special dial tone | |||
| Uganda | Trunk offering tone | |||
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