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.
Business customers subscribing to our paid premium service can benefit from unrestricted searching of over 1,700 records, update notifications and support, for up to ten users, ad-free.
Help us improve! If you have updated information on Disconnect tones or official versions of national tone plans, please let us know.
| Country | Tone | Frequency/Hz | Cadence/s | Audio |
| Turkey | Busy tone | 450 | 0.5 on 0.5 off |  |
| Turkey | Call waiting tone | 450 | 0.2 on 0.6 off 0.2 on 8.0 off | |
| Turkey | Confirmation tone | 450 | 0.04 on 0.04 off | |
| Turkey | Congestion tone | |||
| Turkey | Dial tone | |||
| Turkey | Disconnect tone | |||
| Turkey | Number unobtainable tone | |||
| Turkey | Off-hook warning tone | |||
| Turkey | Ringing tone | |||
| Turkey | Special dial tone | |||
| Turkey | Special information tone | |||
| Turkey | Waiting tone - I | |||
| Turkey | Waiting tone - II | |||
| Turkey | Warning tone - operator intervening | |||
Corporate user? Please consider sponsoring this service by getting a paid subscription for your institution.