enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  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. 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.

  4. Command mode and Data mode - Wikipedia

    en.wikipedia.org/wiki/Command_mode_and_Data_mode

    In fax and voice data modes, sometimes events occur that the modem wishes to signal to the computer regardless of whether it's in command or data mode. An example of such an event is a caller pressing a touch-tone key in voice mode. Other common out-of-band messages are notifications from the modem that data was lost because the computer is ...

  5. Hayes AT command set - Wikipedia

    en.wikipedia.org/wiki/Hayes_AT_command_set

    A list of Hayes AT commands Archived 2008-07-10 at the Wayback Machine; 3gpp.org, 3GPP AT command set for User Equipment; Modem initialisation string Archived 2009-03-10 at the Wayback Machine; Extended Hayes AT command parameters for SMS (dead) Determining your Class of Fax / Modem; Openmoko: AT Commands

  6. 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.

  7. T.38 - Wikipedia

    en.wikipedia.org/wiki/T.38

    As shown in the diagram below, a T.38 gateway is composed of two primary elements: the fax modems and the T.38 subsystem. The fax modems modulate and demodulate the PCM samples of the analog data, turning the sampled-data representation of the fax terminal's analog signal to its binary translation, and vice versa.

  8. 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 ...

  9. Precise tone plan - Wikipedia

    en.wikipedia.org/wiki/Precise_tone_plan

    The original plan had two slightly different versions of this signal, with a cadence of 0.2 of a second ON and 0.3 of a second OFF to signal toll-circuit congestion and a cadence of 0.3 of second ON and 0.2 of a second OFF for local reorder. High tone is a tone of 480 Hz at –17 dB.