GSM is an acronym for Global System for Mobile Communications. This technology uses radio frequency spectrum to transmit data. GSM cell phones use a variant of TDMA, which divides the radio frequency band into multiple channels. In this way, more people can send and receive information at the same time. The GSM cell phone’s signal is more robust, which means more people can talk to each other at the same time.
Code Division Multiple Access (CDMA) is an older radio standard. These types of cell phones are not compatible with one another because they operate on different bands. Additionally, phones that use GSM channels will not work on CDMA channels. In the United States, Verizon Wireless uses the CDMA standard. But in other countries, such as Russia, Nokia, and South Korea, CDMA isn’t widely used.
GSM is widely used in many parts of the world. The major carriers using GSM include AT&T and T-Mobile. Both carriers have large networks. Because of their market share, GSM users are usually offered the latest models of cell phones. This means that users won’t have to settle for a smartphone that has been manufactured in their country. It is also possible to transfer your GSM phone to another carrier.
Earlier versions of GSM phones use CDMA. These networks have outdated technology. Some carriers like AT&T and Verizon have already discontinued the 2G GSM network. Then, in December 2022, CDMA will disappear entirely. Verizon is also set to discontinue its 3G GSM/CDMA network. The 4G network will replace the GSM networks. So, it’s important to upgrade to a new phone if you’re still using a 2G or 3G device.
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