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 |
| Greece | Busy tone | 425 | 0.3 on 0.3 off |  |
| Greece | Call waiting tone | 425 | 0.3 on 10.0 off | |
| Greece | Congestion tone | 425 | 0.15 on 0.15 off | |
| Greece | Dial tone | |||
| Greece | Holding tone | |||
| Greece | Intrusion tone | |||
| Greece | Ringing tone | |||
| Greece | Special dial tone | |||
| Greece | Special dial tone | |||
| Greece | Special information tone | |||
Corporate user? Please consider sponsoring this service by getting a paid subscription for your institution.