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2. Portal:Telephones - Wikipedia

   en.wikipedia.org/wiki/Portal:Telephones

   The Telephones Portal. A rotary dial telephone, c. 1940s. A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables ...

3. List of open-source mobile phones - Wikipedia

   en.wikipedia.org/wiki/List_of_open-source_mobile...

   The main components to make an open mobile phone are: Back cover; Touch screen; Battery; Logic board; Another notable mention would be Paxo Phone at paxo.fr See also. Free and open-source software portal; Linux portal; Comparison of open-source mobile phones (features) List of open-source hardware projects

4. Zong (mobile network) - Wikipedia

   en.wikipedia.org/wiki/Zong_(mobile_network)

   Zong. CMPak Limited [1] [2] ( Urdu: زونگ ), doing business under brand name Zong, is a Pakistan based mobile data network operator, owned by China Mobile. [3] It is the first overseas setup of China Mobile through acquisition of a license from Millicom to operate a GSM network in Pakistan in 2008. [4]

5. SIM lock - Wikipedia

   en.wikipedia.org/wiki/SIM_lock

   A SIM lock, simlock, network lock, carrier lock or ( master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks. This is in contrast to a phone (retrospectively called SIM-free or ...

6. Q Link Wireless - Wikipedia

   en.wikipedia.org/wiki/Q_Link_Wireless

   Parent. Quadrant Holdings LLC. Website. qlinkwireless .com. Q Link Wireless is an American telecommunications company based in Dania, Florida that provides free wireless services to Lifeline eligible consumers. The company also offers prepaid mobile phone services including wireless voice, messaging, and data services under the Hello Mobile brand.

7. Mobile number portability - Wikipedia

   en.wikipedia.org/wiki/Mobile_number_portability

   Overview. Mobile number portability is implemented in varying ways across the globe. The international and European standard implements "recipient-led" porting, in which a customer wishing to port a telephone number contacts the new network (recipient), which sends the number portability request (NPR) to the current network operator (donor).