World PSTN Tone Database
Your online resource for international call progress tones

Last update: 8-May-2009 | Additions: 127 | Corrections: 177 | Deletions: 22 records.

Welcome to our most popular resource, the World PSTN Tone Database, dedicated to the A-Z of international call progress tones. From here you can research tone parameters in national tone plans and, if signed in, audition the tones on-line and switch formats.

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Help us improve! If you have new information on Disconnect tones or official versions of national tone plans, we'd like to hear from you. A big thank you goes to all our subscribers and contributors, with special mention to Tom Keating's VoIP & Gadgets Blog. Keep'em coming!