Disconnect tone

This article does not cite any sources. Please help by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources:  –  ·  ·  · scholar · JSTOR (August 2008) (Learn how and when to remove this template message)

Menu

0:00

Reproduction of an IOS phone disconnect tone (not the original audio)

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". On iPhones, the tone is 3 bursts of 425 Hz tones each lasting 0.2 seconds.^{[citation needed]}

See also[]

• Forward disconnect