Disconnect tone
From Wikipedia, the free encyclopedia
A disconnect tone in telephony is a tone provided to the remaining party to a call after the remote party hangs up.
Typically, the disconnect tone is a few cycles of the reorder or busy tone (e.g. in US), or between five and fifteen seconds of the Number Unobtainable tone (e.g. in UK). On some telephone exchanges in the UK, the following audio message is looped for fifteen seconds, interspersed with Special Information Tones (SIT), to advise the remote party has hung up: "(SIT) The other person has hung up".
See also
- Forward disconnect
- Reorder tone
- Busy signal
- Special Information Tone
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