Talk:Dominican Republic/@comment-25533852-20160211191744/@comment-24682153-20160212035046

That's not because of GSM but the GSM frequencies your Finnish Samsung supports. 900 MHz for 3G is used in Europe occasionally too, but not 850 MHz of Claro. That's a typical US band. But it's still GSM. Same is true to 4G/LTE bands. So compare frequencies offered and specs of your device before the journey. If you are unsure, put the SIM in your phone in the store and check.