As many of us adopt smartphones, like the hot or, and take a more keen interest in wireless technology, we start to wonder about our networks. Verizon's CDMA network, for example, seems to come up in discussion often. With roughly 92% of Verizon's traffic running over its LTE pipeline, the nation's largest carrier plans on shutting down its 2G CDMA 1x network in December 2019. Verizon Wireless, a joint venture of Verizon Communications and Vodafone Group, launched the USA's first commercial CDMA2000 network averaging speeds of between 40kbps and 60kbps under the brand name Express Network, initially available to about 20% of Verizon Wireless customers, in January 2002. How is it different from AT&T's network, or from Sprint? AT&T uses GSM technology, just like T-Mobile. Verizon and Sprint, on the other hand, use CDMA, which stands for Code Division Multiple Access. All it means is that Verizon can pile on several people to use its network at once. After all, there are millions of us sending messages, checking Facebook and making phone calls on Verizon's network every day. We all need to get on it at the same time somehow! Verizon CDMA history Of the four major carriers in the United States, two of them run CDMA technology - those would be Verizon and Sprint. The other two, AT&T and T-Mobile, use GSM technology. Although it seems antiquated now, CDMA was the new technology on the block in the 1990s. That's why Verizon went with it. It was also more powerful and flexible than GSM at the time, so it made sense for Verizon and Sprint to jump on it. Once 3G came around, Verizon's CDMA network used EV-DO, which carried the disadvantage of being limited to data or voice calls only - never both. Verizon CDMA vs. As a consumer, there are just a few things you need to be concerned with when it comes to the big differences between CDMA and GSM devices. Historically, Verizon CDMA devices didn't have the same battery life as GSM devices on AT&T or T-Mobile. However, with new smartphones and monster batteries inside them, it's not as big an issue anymore. Another concern is that Verizon phones weren't that great for traveling abroad. The majority of the rest of the world was using GSM technology, and the countries and regions that used CDMA weren't always compatible with Verizon's devices. The biggest difference for consumers is the inability to easily swap phones on Verizon's CDMA network.
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January 2019
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