World PSTN Tone Database
Your online resource for international call progress tones

Last update: 8-May-2009 | Additions: 127 | Corrections: 177 | Deletions: 22 records.

Welcome to our most popular resource, the World PSTN Tone Database, dedicated to the A-Z of international call progress tones. From here you can research tone parameters in national tone plans and, if signed in, audition the tones on-line.

Corporate customers can subscribe to our Premium search and benefit from unrestricted searching, full cross-referencing of over 1,700 records, update notification and support. Premium subscribers include Adtran, AlarmPoint, JSI Telecom, Motorola, OPNET, Paraxip, Pika, Wipro and Zhone. Not yet convinced? Ask for a free trial.

Help us improve! If you have new information on Disconnect tones or official versions of national tone plans, we'd like to hear from you. A big thank you goes to all our subscribers and contributors, with special mention to Tom Keating's VoIP & Gadgets Blog. Keep'em coming!