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  2. 3CX Phone System - Wikipedia

    en.wikipedia.org/wiki/3CX_Phone_System

    The 3CX Phone System is the software-based private branch exchange (PBX) phone system developed and marketed by the company, 3CX.The 3CX Phone System is based on the SIP (Session Initiation Protocol) standard and enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services on premises, in the cloud, or via a cloud service ...

  3. LTE frequency bands - Wikipedia

    en.wikipedia.org/wiki/LTE_frequency_bands

    The main LTE bands are in bold print. Not yet deployed are not available (N/A). Partial deployments varies from country to country and the details are available at List of LTE networks. Networks on LTE bands 7, 28 (LTE-FDD) are suitable for global roaming in ITU Regions 1, 2 and 3. Networks on LTE bands 1, 3 (LTE-FDD) are suitable for roaming ...

  4. Ford Sync - Wikipedia

    en.wikipedia.org/wiki/Ford_Sync

    Ford Sync (stylized Ford SYNC) is a factory-installed, integrated in-vehicle communications and entertainment system that allows users to make hands-free telephone calls, control music and perform other functions with the use of voice commands.

  5. Android KitKat - Wikipedia

    en.wikipedia.org/wiki/Android_KitKat

    Android KitKat. Android KitKat is the codename for the eleventh Android mobile operating system, representing release version 4.4. Unveiled on September 3, 2013, KitKat focused primarily on optimizing the operating system for improved performance on entry-level devices with limited resources. The first phone with Android KitKat was the Nexus 5.

  6. HiOS - Wikipedia

    en.wikipedia.org/wiki/HiOS

    HiOS (/ ˈ h aɪ ɒ s /) is a customized Android operating system developed by Hong Kong mobile phone manufacturer Tecno Mobile, a subsidiary of Transsion Holdings. The OS is used in the company’s smartphones. [1] [2] HiOS claims to allow for a wide range of user customization without requiring rooting of the mobile device. [3]

  7. Android (operating system) - Wikipedia

    en.wikipedia.org/wiki/Android_(operating_system)

    Contents. Android (operating system) Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but ...

  8. 5G - Wikipedia

    en.wikipedia.org/wiki/5G

    An Android phone, showing that it is connected to a 5G network. In telecommunications, 5G is the fifth-generation technology standard for cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the successor to 4G technology that provides connectivity to most current mobile phones.

  9. Feature phone - Wikipedia

    en.wikipedia.org/wiki/Feature_phone

    A feature phone (also spelled featurephone), or brick phone[1], is a type or class of mobile phone that retains the form factor of earlier generations of mobile telephones, typically with press-button based inputs and a small non-touch display. They tend to use an embedded operating system with a small and simple graphical user interface ...