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 |
| Czech Republic | Caller waiting tone | 425 | 1.00 on 0.17 off 0.33 on 3.50 off |  |
| Israel | Caller waiting tone | 400 | 2x(0.1 on 0.1 off) 0.6 on 3.0 off | |
| Kyrgyz Republic | Caller waiting tone | 425 | 0.2 on 5.0 off | |
| New Zealand | Caller waiting tone | |||
| Paraguay | Caller waiting tone | |||
| Slovak Republic | Caller waiting tone | |||
| Venezuela | Caller waiting tone | |||
Corporate user? Please consider sponsoring this service by getting a paid subscription for your institution.