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  2. 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 format that may be used to specify the tone.

  3. Intercept message - Wikipedia

    en.wikipedia.org/wiki/Intercept_message

    In the past, the call would be forwarded to an intercept operator after usually two readings of the message; today, however, this procedure is not observed, and on some systems a fast busy signal follows the second reading of the message instead. (A busy or an Off-Hook may be used depending on the provider.)

  4. Reorder tone - Wikipedia

    en.wikipedia.org/wiki/Reorder_tone

    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.

  5. List of downloadable songs for the Rock Band series - Wikipedia

    en.wikipedia.org/wiki/List_of_downloadable_songs...

    Players can download songs on a track-by-track basis, with many of the tracks also offered as part of a "song pack" or complete album, usually at a discounted rate. Tracks released for Rock Band 2 on the Wii platform are only available as singles while Rock Band 3 offers multi-song packs as well as singles.

  6. Why do teens say, ‘Fax, No Printer’? - AOL

    www.aol.com/news/why-teens-fax-no-printer...

    Wright says inspiration for the slang is older than a fax machine itself. “The use of ‘fax’ as a fun phonetic play on ‘facts’ dates back to at least 1837, as documented by the Oxford ...

  7. Busy signal - Wikipedia

    en.wikipedia.org/wiki/Busy_signal

    A busy signal (or busy tone or engaged tone) in telephony is an audible call-progress tone or audible signal to the calling party that indicates failure to complete the requested connection of that particular telephone call. The busy signal has become less common in the past few decades due to the prevalence of call waiting and voicemail.

  8. Disconnect tone - Wikipedia

    en.wikipedia.org/wiki/Disconnect_tone

    [1] [2] Typically, the disconnect tone is a few cycles of the reorder, busy, or the off-hook 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 ...

  9. Voicemail - Wikipedia

    en.wikipedia.org/wiki/Voicemail

    A message center or "message desk" was a centralized, manual answering service inside a company staffed by a few operators who answered all incoming phone calls. Extensions that were busy or rang "no answer" would forward to the message center using a device called a "call director".