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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|Namibia||Busy tone||400||0.5 on 0.5 off|
|Namibia||Call waiting tone||400x33||continuous|
|Namibia||Congestion tone||400||0.25 on 0.25 off|
|Namibia||Special information tone|