How Can I Tell if My Phone Is Gsm or Cdma
Some newer devices are considered dual-band phones and tin run on both technologies. If you're looking to hop from 1 carrier to some other and want to bring your current phone with y'all, yous don't need to wade through production specs to see if information technology'due south uniform. To see if you can transfer a specific device from another carrier to the Verizon Wireless network, click here.
Both CDMA and GSM are multiple-access technologies, meaning they allow multiple calls or information connections on one radio channel. GSM transforms calls into digital information, gives them a shared channel and a time slot and puts the pieces of each call dorsum together for the listener on the other end. CDMA encodes each telephone call's data with a unique key. So all calls are transmitted at once, with receivers "dividing" the combined signal back into individual calls.
Of the two, GSM is more widely used effectually the globe, with availability in more than 200 countries. While CDMA is used widely in the U.S., it is less mutual elsewhere — about estimates pin the portion of global wireless networks using CDMA at less than 20 percentage. The Verizon network is a CDMA wireless network.
What does the CDMA/GSM departure mean?
One major distinction between GSM networks and CDMA networks is that the former allows you to make voice calls and transmit data at the same time, while the latter does not. Only there'due south a catch.
GSM and CDMA standards apply to 2G and 3G connectivity. Carriers all began switching to LTE in 2010, and LTE does support simultaneous voice and information use. Moreover, because LTE is a global standard for 4G networks, Verizon and all other carriers take fabricated the switch, regardless of whether their 2G and 3G connectivity was supported past GSM or CDMA networks.
The stardom is becoming less important and will be entirely irrelevant sooner rather than later (more on that below). At the moment, however, 2G and 3G networks continue to serve equally a backup for areas where 4G LTE coverage is weak. And, until recently, many phones used LTE for information only and relied on GSM or CDMA for voice and texts.
For day-to-day use, the stardom between GSM and CDMA is not likely to be a big outcome. Today's CDMA phones piece of work on GSM networks, which is why yous're able to use your Verizon phone when traveling to places that rely on GSM, such as Europe and Asia.
The future of CDMA vs. GSM.
As carriers build out 5G networks, they're decommissioning their 2G and 3G infrastructure. Different carriers have dissimilar timelines for this, but Verizon is taking concrete steps to begin transitioning CDMA devices off of the network at the end of 2022 — somewhen moving all devices to the HD Vocalism LTE network.
This has implications for people with older phones who want to switch carriers. Starting on December 31, 2019, customers volition no longer be able to move a 3G/4G not-HD Vox CDMA device from one business relationship to some other. They will also no longer be able to provide such a device to actuate on an existing line or bandy one such device for another. Notwithstanding, customers with these devices will nevertheless be able to append and resume service, change their phone number, upgrade to compatible 4G or 5G devices and activate new lines for 4G or 5G devices.
On December 31, 2020, Verizon will begin moving all devices to the HD Voice LTE network. While the CDMA network will remain available as-is until that date, any service requests related to CDMA devices may receive limited support after the stop of 2019. Customers are encouraged to upgrade to newer engineering.
Both CDMA and GSM networks have provided millions of callers with crucial connectivity over a number of years. Watch for these technologies to be gradually phased out and for connectivity to amend.
This content is provided for information purposes but. All data included herein is field of study to change without observe. Verizon is not responsible for any direct or indirect amercement, arising from or related to apply or reliance of the above content.
Source: https://www.verizon.com/articles/what-are-phone-bands-and-why-do-they-matter/
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