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  2. Extension (telephone) - Wikipedia

    en.wikipedia.org/wiki/Extension_(telephone)

    In business telephony, a telephone extension may refer to a phone on an internal telephone line attached to a private branch exchange (PBX) or Centrex system. The PBX operates much as a community switchboard does for a geographic telephone numbering plan and allows multiple lines inside the office to connect without each phone requiring a ...

  3. Form factor (mobile phones) - Wikipedia

    en.wikipedia.org/wiki/Form_factor_(mobile_phones)

    Bar-type smartphones commonly have the screen and keypad on a single face. Sony had a well-known 'Mars Bar' phone model CM-H333 in 1993 that was longer and thinner than the typical bar phone. [2] Bar phones without a full keyboard tend to have a 3×4 numerical keypad; text is often generated on such systems using the Text on 9 keys algorithm.

  4. Candlestick telephone - Wikipedia

    en.wikipedia.org/wiki/Candlestick_telephone

    The first tube shaft candlestick telephone was the Western Electric #20B Desk Phone patented in 1904. [1] In the 1920s and 1930s, telephone technology shifted to the design of more efficient desktop telephones that featured a handset with receiver and transmitter elements in one unit, making the use of a telephone more convenient.

  5. Direct inward dial - Wikipedia

    en.wikipedia.org/wiki/Direct_inward_dial

    A telephone line is terminated at a telephone interface (fax modem) of a computer that runs fax server software. A set of digits of the assigned phone number is used to identify the recipient of the fax. This allows many recipients to have individual fax numbers while sharing only a few receiving interfaces (fax modems).

  6. List of large sensor camera phones - Wikipedia

    en.wikipedia.org/wiki/List_of_large_sensor...

    The latest Leica Leitz and Sharp Aquos R series phones do qualify because, despite using only 94% [b] of their 1.0-type sensors [2] [3] (with 4:3 aspect ratio), they maintain the same crop factor (2.7) and diagonal (1″) as a 1.0-type sensor with 3:2 aspect ratio, since that is the image circle for which their lenses were originally designed.

  7. Comparison of smartphones - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_smartphones

    CMF Phone 1 MediaTek Dimensity 7300 Octa-Core, (4x2.5 GHz Cortex-A78 + 4x2.0 GHz Cortex-A55) Mali-G615 MC2 128/256 GB microSDXC up to 2 TB 6/8 GB Android 14 Nothing OS 2.6 164 mm × 77 mm × 8 mm / 9 mm 197 g 202 g 5000 mAh USB-C, 33 W 6.67" 1080 x 2400, 120 Hz AMOLED 50 MP (wide) + 2 MP (depth) 4K@30 fps, 1080p@30/60 fps

  8. Device-independent pixel - Wikipedia

    en.wikipedia.org/wiki/Device-independent_pixel

    As dp is a physical unit it has an absolute value which can be measured in traditional units, e.g. for Android devices 1 dp equals 1/160 of inch or 0.15875 mm. While traditional pixels only refer to the display of information, device-independent pixels may also be used to measure user input such as input on a touch screen device.

  9. British telephone socket - Wikipedia

    en.wikipedia.org/wiki/British_telephone_socket

    However, although rarely connected in practice, Irish phone jacks also contain a ringing capacitor circuit very similar to their UK counterparts. This is carried on pin 5. Or, if wired for two-line service (rare), a second ring wire is carried on pin 2 for line 2, with the outer pair, pins 1 and 6 carrying the second line.