Your online resource for international call progress tones

Search Tones

Welcome to our most popular resource, 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 audition the tones on-line.

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Help us improve! If you have updated 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. Keep'em coming!

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hh-icon-telephony
Related product: CPT-Master tone generator app