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  2. Reorder tone - Wikipedia

    en.wikipedia.org/wiki/Reorder_tone

    In EU countries and those following ETSI (European Telecommunication Standards Institute) recommendations, the cadence is the same as North America, i.e. 0.25 seconds on / 0.25 seconds off, but with a 425 Hz tone. The UK reorder tone uses a 400 Hz tone with a cadence of 0.4 seconds on, 0.35 seconds off, 0.225 seconds on, 0.525 seconds off.

  3. Precise tone plan - Wikipedia

    en.wikipedia.org/wiki/Precise_tone_plan

    Low tone, also busy tone, is defined as having frequency components of 480 and 620 Hz at a level of −24 dBm and a cadence of one half second ON and one half second OFF. Reorder tone, also often called fast busy tone, is the same tone, but with a cadence of 0.25 of a second ON and 0.25 of a second OFF. The original plan had two slightly ...

  4. Call-progress tone - Wikipedia

    en.wikipedia.org/wiki/Call-progress_tone

    Telecommunication equipment such as fax machines and modems are designed to recognize certain tones, such as dial tone and busy tone. The ITU-T E.180 and E.182 recommendations define the technical characteristics and intended usage of some of these tones. ToneScript is a tone description

  5. Portal:Telephones/Selected audio - Wikipedia

    en.wikipedia.org/wiki/Portal:Telephones/Selected...

    The reorder tone, also known as the fast busy tone, or the congestion tone, or all trunks busy (ATB) tone is an audible call progress tone in the public switched telephone network (PSTN) that is returned to a calling party to indicate that the call cannot be processed through the network.

  6. Busy signal - Wikipedia

    en.wikipedia.org/wiki/Busy_signal

    In the United Kingdom, the busy tone is a single 400 Hz tone with equal 0.375 s on/off periods. This was the case even when the UK was still part of the EU. The current 400 Hz/375ms tone was adopted in the mid-to-late 1960s and replaced the older busy tone, which was the same 400 Hz signal but at half the pulse duration, 0.75 s on, 0.75 s off.

  7. 10 Genius Phrases To Use Instead of 'I'm Busy ... - AOL

    www.aol.com/lifestyle/10-genius-phrases-instead...

    "Depending on the tone and context, simply saying, 'I'm busy' can be like ... "This communicates that we are busy at the moment but that we will attend to what is being discussed," says Dr ...

  8. Telephone call - Wikipedia

    en.wikipedia.org/wiki/Telephone_call

    The fast busy signal is generally twice as fast as the normal busy signal. status tones such as STD notification tones (to inform the caller that the telephone call is being trunk dialled at a greater cost to the calling party), minute minder beeps (to inform the caller of the relative duration of the telephone call on calls that are charged on ...

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