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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|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|