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  2. iPhone - Wikipedia

    en.wikipedia.org/wiki/IPhone

    The iPhone was the first mobile phone to use multi-touch technology. Since the iPhone's launch, it has gained larger screen sizes, video-recording, waterproofing, and many accessibility features. Up to the iPhone 8 and 8 Plus, iPhones had a single button on the front panel, with the iPhone 5s and later integrating a Touch ID fingerprint sensor.

  3. Ringing tone - Wikipedia

    en.wikipedia.org/wiki/Ringing_tone

    Bell System tones. In North America (excluding Mexico, Central America and parts of the Caribbean ), the standard audible ringing tone is a repeated cadence of a two-second tone and four seconds of silence. In Korea, repeated cadence of a one-second tone and two seconds of silence. The signal is composed of the frequencies 440 Hz and 480 Hz.

  4. Nokia tune - Wikipedia

    en.wikipedia.org/wiki/Nokia_tune

    The Nokia tune is a phrase from a composition for solo guitar, Gran Vals, composed in 1902 by the Spanish classical guitarist and composer Francisco Tárrega. It has been associated with Finnish corporation Nokia since the 1990s, becoming the first identifiable musical ringtone on a mobile phone; Nokia selected an excerpt to be used as its default ringtone.

  5. Facebook - Wikipedia

    en.wikipedia.org/wiki/Facebook

    History Further information: History of Facebook 2003–2006: Thefacebook, Thiel investment, and name change Original layout and name of Thefacebook in 2004, showing Al Pacino's face superimposed with binary numbers as Facebook's original logo, designed by co-founder Andrew McCollum Zuckerberg built a website called "Facemash" in 2003 while attending Harvard University. The site was comparable ...

  6. Sidetone - Wikipedia

    en.wikipedia.org/wiki/Sidetone

    Sidetone is audible feedback to someone speaking or otherwise producing sound as an indication of active transmission. Sidetone is introduced by some communications circuits and anti-sidetone circuitry is used to control its level. Sidetone is expected behavior for telephone systems. Absence of sidetone can cause users to believe the call has ...

  7. iPhone hardware - Wikipedia

    en.wikipedia.org/wiki/IPhone_hardware

    The iPhone has a minimal hardware user interface, with most models featuring five buttons. The only physical menu button is situated directly below the display and is called the "Home button" because its primary function is to close the active app and navigates to the home screen of the interface. Earlier models included a rounded square ...

  8. Reorder tone - Wikipedia

    en.wikipedia.org/wiki/Reorder_tone

    See media help. 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. [1]

  9. iPhone SE (3rd generation) - Wikipedia

    en.wikipedia.org/wiki/IPhone_SE_(3rd_generation)

    The third-generation iPhone SE (also known as the iPhone SE 3 or the iPhone SE 2022) is a smartphone designed and developed by Apple Inc. It is part of the 15th generation of the iPhone, alongside the iPhone 13 and 13 Mini and iPhone 13 Pro and 13 Pro Max models. Apple announced the third-generation iPhone SE on March 8, 2022, as the successor ...