I use Cici international calling cards- you can purchase them at most convenience stores. To call a Dominican cell phone it is almost 17 cents/minute, but if you are calling a landline I believe it's a little bit cheaper... however, 9 cents/minute sounds like a much better deal! Vintage, do you have to sign up for their phone landline? or do they have a calling card type thing for calling internationally??!
Thanks,
Laura