You already Got your call Numbers?. .. sort out the Amateur Licence ..

Satellite Phones are very expensive services so having it has to matter a Lot.. https://satellitephonestore.com/

None are small so you would not mount them... you stow in your bags, then until you stop and use them.

I have no clue about cell phone coverage in Columbia , with no cell towers in US its spotty in the rural areas .





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