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 |
| Thailand | Busy tone | 400 | 0.5 on 0.5 off |  |
| Thailand | Call waiting tone | 400 | 1.0 on 10.0 off 1.0 on | |
| Thailand | Congestion tone | 400 | 0.3 on 0.3 off | |
| Thailand | Dial tone | |||
| Thailand | Disconnect tone | |||
| Thailand | Number unobtainable tone | |||
| Thailand | Ringing tone | |||
| Thailand | Special dial tone | |||
| Thailand | Special information tone | |||
| Thailand | Trunk offering tone | |||
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