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GSM Nation was an on-line phone retailer and wholesaler based in the United States. It was founded in 2010 by Ahmed Khattak and Junaid Shams with support from the Yale Entrepreneurial Institute. It specializes in selling GSM unlocked phones. [2]
Carphone Warehouse, one of the largest UK phone retailers, offers unlocked phones with most PAYG deals. [citation needed] As of January 1, 2014, all phones sold by 3 UK are unlocked. Phones bought before this date will be unlocked for free. [70] On 17 December 2019, Ofcom announced that it would explore a mandate banning SIM locking. [71]
The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation digital cellular networks used by mobile devices such as mobile phones and tablets. GSM is also a trade mark owned by the GSM Association. [2] "
With the i920 or the i930, one phone, one phone number can be used at any part of the world which has a GSM network. The phone won't be made available to either Boost Mobile or Southern Linc networks, given that Boost Mobile is a prepaid service and Southern Linc is a regional carrier serving mainly Alabama and Georgia.
The Canadian model was sold unlocked and supports GSM/UMTS/HSPA/AWS bands. A GSM/UMTS, SIM-unlocked version was officially released in the United States by Google in the Google Play Store. Sprint Corporation officially announced the Galaxy Nexus for their network at CES 2012, and was released on 22 April 2012, as one of Sprint Corporation 's ...
As of 2019, all available mobile phones have a proprietary baseband chip (GSM module, cellular modem), [2] [3] [4] except for the Necuno, which has no such chip and communicates by peer-to-peer VOIP. [ 5 ] [ 6 ] The modem is usually integrated with the system-on-a-chip and the memory. [ 4 ]
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