How Can Gsm Mobile Phones Be Used Internationally When Cdma Is Domestic?
They both use cell towers but how do each operate and how are the data transferred over the air
They both use cell towers but how do each operate and how are the data transferred over the air
I’m going to paste a few links at the bottom for you take a look at. The first tells you how GSM operates.
The second how CDMA operates.
The third is a comparison of the two.
“International Roaming: If you need to make calls to other countries, a GSM carrier can offer international roaming, as GSM networks dominate the world market. If you travel to other countries you can even use your GSM cell phone abroad, providing it is a quad-band phone (850/900/1800/1900 MHz). By purchasing a SIM card with minutes and a local number in the country you are visiting, you can make calls against the card to save yourself international roaming charges from your carrier back home. CDMA phones that are not card-enabled do not have this capability, however there are several countries that use CDMA networks. Check with your CDMA provider for your specific requirements.”
Hope that helped