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2. 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.

3. Code-division multiple access - Wikipedia

   en.wikipedia.org/wiki/Code-division_multiple_access

   This predates and is distinct from its use in mobile phones. The Qualcomm standard IS-95, marketed as cdmaOne. The Qualcomm standard IS-2000, known as CDMA2000, is used by several mobile phone companies, including the Globalstar network. [nb 1] The UMTS 3G mobile phone standard, which uses W-CDMA. [nb 2]

4. Assurance Wireless - Wikipedia

   en.wikipedia.org/wiki/Assurance_Wireless

   Since April 2020, the Assurance Wireless brand has been under the T-Mobile family. [5] This was the result of the merger of Sprint Corporation and T-Mobile US was officially completed, [9] and after Virgin Mobile USA was officially shut down and folded into Boost Mobile. An official statement was sent to all customers July 14, 2020 stating that ...

5. The 4 Best Cheap Cell Phone Plans Under $30 with Data - AOL

   www.aol.com/finance/4-best-cheap-cell-phone...

   Plan Name. Mint Mobile Unlimited. Data. Unlimited. Talk & Text. Unlimited. Contract. No. Price. $30/month. If you want a cheap cell phone plan without any second thoughts, Mint Mobile is the solid ...

6. Subsidy Password - Wikipedia

   en.wikipedia.org/wiki/Subsidy_Password

   The term "subsidy" refers to the subsidization of cell phones sold to customers that purchase mobile phones as part of a contract with the mobile service operator. Many network operators provide these subsidies as an incentive for users to sign extended contracts, and use the subsidy lock as a means of protecting their investment. The ...

7. Dual-mode mobile - Wikipedia

   en.wikipedia.org/wiki/Dual-mode_mobile

   Mobile phones containing two types of cellular radios for voice and data. These phones include combination of GSM and CDMA technology. They can be used as a GSM or CDMA phone according to the user's preference. These handsets are also called global phones. An example of this is the Samsung SCH-A790. These dual-mode handsets are compatible with ...