My daughter has a very important court date on the 28th and we will be in Rocky Point that day. I want to call her to hear the outcome, but Verizon wants 99 cents a minute. Even if I buy a phone card Verizon will still charge me if I use my cell phone. What is the best way (and cheapest) to call the U.S. from Mexico if I just want to pay enough for one 20-30 minute call?