Hey, I'm going to put my cell phone service on pause for 6-7mo ish due to leaving the country. While I'm away, I'd like to be able to keep in touch with my loved ones/friends, assuming I have access to wifi at certain points. I was wondering if I can keep my phone operational without service? I'm JB on 5.0.1. Ideally, I'd like to be able to use facetime, skype, or gmail voice chat and ios message or bitesms credits for texting with wifi. I also have an non-JB iPad2 if tht makes a difference in my possibilities. Appreciate any help or insight, thanks.