International call progress tones for IP-PBX and VoIP telephony

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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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15 records found, showing data for first record (free service).
The Confirmation tone is equivalent to the Acceptance tone, Function acknowledge tone,
Positive indication tone and the Service activated tone. More...
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