I have been looking for an answer to this question for a while. Verizon is phasing out 3G (and most others have already phased this standard out), and per dozens and dozens of posts I've read, 3g is the last time CDMA and GSM were applicable terms. 4GLTE, again per many many posts and articles, doesn't use CDMA or GSM encoding methods (it's TDMA, but a different implementation than GSM per several articles). In spite of this, you still need a CDMA capable phone for Verizon network compatibility. It looks like most model phones are "GSM Only" (not the most popular models, but a large majority of phones not sold by Verizon, especially ones primarily sold unlocked). This is again confusing. Most networks no longer support 3G, 3G is the last time GSM and CDMA are relevant, but most phones are still GSM only, or both CDMA and GSM compatible (no new CDMA only phones as far as I can tell).
So if CDMA and GSM are not relevant, why are the terms still used, and if a phone is 4G LTE or 5G compliant, and has Verizon band compatibility, why is CDMA phone still needed for Verizon network?
I've done many searches, many terms and parameters, and nothing answers this question. I can imagine some answers, but I can't find any verification of any of several theories.
So if CDMA and GSM are not relevant, why are the terms still used, and if a phone is 4G LTE or 5G compliant, and has Verizon band compatibility, why is CDMA phone still needed for Verizon network?
I've done many searches, many terms and parameters, and nothing answers this question. I can imagine some answers, but I can't find any verification of any of several theories.
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