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2 fundamental innovations in smart phones, CDMA and GSM, represent a gap you can't cross. They're the factor you can't use old AT&T phones on Verizon's network and vice versa. But what does CDMA vs. GSM actually mean for you? CDMA (Code Department Multiple Gain Access To) and GSM (Global System for Mobiles) are shorthand for 2 older radio systems (likewise understood as 2G and 3G) used in cellular phone.

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However in 2021, it's absolutely time to leave of CDMA and GSM. Those networks are going away! If you have a phone that only utilizes 2G or 3G, you need to get a 4G or 5G phone, pronto. AT&T has actually currently shut down its 2G GSM network and most just recently said it will close down 3G GSM/UMTS in February 2022.

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T-Mobile will shut down the 3G CDMA network utilized by some Sprint and Increase consumers on January 1, 2022. In the golden years of these networks, they're being rejected to levels mostly developed to support gadgets like electrical meters and vending devices. That suggests 2G and 3G reception and call quality will likely be bad, even prior to the official shutdowns.

No matter just how much you love your old phone, it's time to change over. Yes, there are some 2G-only and 2G/3G-only phones still for sale, specifically opened GSM phones. Don't purchase them. They'll work inadequately, and quite quickly they will not work at all. Do not weep for CDMA and GSM. They have actually had long lives.

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The first GSM network launched in the United States in 1995. There are more effective methods to utilize our minimal airwaves now. 1G, 2G, 3G, 4G, 5GWhen cellular phone companies speak about a "G," they imply a generation of cordless technology. Each generation is able to support more users and has much better data transfer capabilities.

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When carriers switched to 2G digital systems in the 1990s, they selected among numerous competing options; a few of them passed away out, but CDMA and GSM are the two 2G camps that endured. They remained split during the '00s through the 3rd generation of cellular, which included better data speeds however stayed incompatible.