Heading to scotland for a week of curling and a few days of photo touring around the country. I was looking for the best way to get data for my i phone and during my search I came upon a company that will allow me to keep my current phone number and allow me to receive and make reasoneably priced phone calls. This company is Holiday Phone, It looks like the whole process will be straight forward.
You will need an unlocked phone.
My i phone is off contract so it was easy for me to get it unlocked from AT&T by submitting a form on the AT&T website. It only took me 20 minutes to get a response back with permission to unlock my phone.
Holiday Phone send my new SIM card in 2 days (my fault for waiting until the last minute so I paid for 2 day shipping). the card comes attached to a letter explaining how you use their system, its a matter of forwarding your number to a US number provided by Holiday Phone and when you get in the plane switch SIM cards. Any calls to your phone will then be forwarded to your phone directly.
So if you find yourself traveling and you are looking for an easy way to get cell phone service give Holiday Phone a try.