What does GSM only no CDMA mean?

Related questions

1. Can a phone be both CDMA and GSM?
2. Do unlocked phones have bloatware?
3. What is the difference between CDMA and LTE?
4. Is Vodafone GSM or CDMA in Australia?
5. What is a reverse channel?
6. What is a reverse channel letter?
7. Is 95 CDMA and cdma2000?
8. How many channels are there in CDMA forward channel?
9. Is 95 forward and reverse channel?
10. Why is CDMA preferred over GSM?

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19. #popular