What to do with my Iphone 5 while traveling?

I'm flying from the US to England tomorrow and I'm not sure what settings to put my phone on while I'm there for ten days. I got an international plan so that it is less money to call and text internationally. I have an iphone 5 and my carrier is Verizon.

I would like to be able to call, facetime, and text, even if I have to pay per minute or per message. I have heard that I should turn SMS off, but will that mean that if someone wants to text me that doesn't have an iphone, I won't get their message? Also, if I turn cellular data or data roaming off can I still make and receive calls?

I don't have iphone why would know about this

  • Will Sprint Unlock My iPhone if I'm Traveling Internationally? I'm going to Philippines with my friend in two months and I was wondering if Sprint would unlock our iPhones. If they will, would it be free? Cause I plan on using it in Philippines. We're just going to buy a sim card. When I was with T-Mobile, they unlocked my phone for China.
  • Will I be charged if I receive an oncoming call while traveling abroad? I'm traveling abroad and taking my iPhone. I don't have an international package so I'm not planning on making any calls or sending messages. However, what if someone calls me instead? What will happen if I ignore the call and let it go straight to voicemail? Will I get charged for it?
  • Why won't my iPhone 4S make or receive calls when traveling internationally? Celluar data is turned off because i don't want to get charged. My phone worked the first week I was in France. Now it doesn't work, still in France. My phone doesn't detect calls and when i dial numbers it doesn't ring
  • Using straight talk service while traveling to puerto rico? Meaning make and receive phone calls?! I have a iphone with [straight talk sim] from walmart inside, will my service would work? The answer is yes, plus 3 megas download speeds, and yes puerto rico is part of the continental usa. What is straight talk for people don't know uses at&t towers I can't believe I need to answer my on question from 5 days ago if you don't know the answer don't say anything.