Many people may be wondering why Verizon uses CDMA technology instead of GSM. Both technologies have some advantages and disadvantages. The major difference is that CDMA supports better data speeds. Verizon is the only major US carrier to offer this technology. GSM devices are locked to a specific network carrier, while CDMA devices can be used on multiple carriers. Here are some of the reasons why Verizon uses CDMA.
In order to use the CDMA network, you must have a compatible phone. CDMA phones don’t support HD Voice, and if you’re still using a 3G device, you may have to pay full retail price or a discounted price for it. CDMA also does not support cellular devices that do not have VoLTE support. Verizon has delayed the CDMA network shutdown because they want to keep their customers happy. Besides, CDMA equipment will not be compatible with the LTE network, which will be a hassle.
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Another major difference between GSM and CDMA technology is that CDMA phones do not need SIM cards. They are built to use a specific carrier’s network, and it used to be difficult to change carriers – you had to buy a new phone from them. Today, carriers routinely use SIM cards for their 4G LTE networks. If you have a new phone, chances are it has an eSIM instead of a traditional SIM.
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