My folks will be heading to oahu for 2 weeks and want a sim card they can put into their mobile phones to call each other while they are there. Don't want data or voip since they're not tech savy to use this. Is there something basic like this that i can buy online before they go? Or something they can buy when they get there?
I've had a look at mrsimcard.com and it'll cost around $75us (inc shipping) on the cheapest plan for both of them in total, but this seems really expensive and it includes data they won't use.
Any help greatly appreciated!