
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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Country | Tone | Frequency/Hz | Cadence/s | Audio |
Pakistan | Busy tone | 400 | 0.5 on 0.5 off | ![]() |
Pakistan | Congestion tone | 400 | 0.25 on 0.25 off | |
Pakistan | Disconnect tone | 425 | 0.25 on 0.25 off | |
Pakistan | Disconnect tone | |||
Pakistan | Disconnect tone - PTCL | |||
Pakistan | Ringing tone |