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 | Sipura/Linksys string | Audio |
| Brazil | Disconnect tone | 425@-30,425@-30; 2(0.25/0.25/1+2) |  |
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