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 |
| Russian Federation | Busy tone | 425 | 0.4 on 0.4 off |  |
| Russian Federation | Ringing tone | 425 | 0.8 on 3.2 off | |
| Russian Federation | Waiting tone | 950/1400/1800 | 3x0.33 on 1.0 off |
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