traveling to Greece with original iphone

My sister is leaving for Greece tomorrow for a couple of weeks and I'm trying to help her figure out a way for her to keep in touch with her business, me, etc. while she's over there. I was thinking about giving her my old iphone 2G to use but I'm not sure how she would use it. I know that she can use google voice but that would require wifi OR she would have to purchase a local prepaid sim when she got to Greece so that she doesn't have to rely on wifi. She doesn't really want/need a local # while she's there though so having a US # makes more sense.

Is there a cheap option for her where she can just get a temporary US# so that she can make calls to (and receive calls from) the US while she's over there?

Does Straight Talk or any such company offer a viable option for this situation? The iphone isn't unlocked but I'm pretty sure I can unlock it for her.

 

I'm trying to avoid the reliance on wifi. If she's on wifi, she can easily mkes calls via gv, etc. I'm trying to see if there's a cheap way for her to at least get data access over there and maybe even get an international roaming plan on the cheap. Not sure if it's possible though.

 

She has an iphone 4 or 4s (can't remember which) with Sprint. I was wondering if maybe she could use a gophone sim in the old iphone over there but I'm not sure. I guess I can just call AT&T and ask them.

 

So her best bet would be to just grab a local sim with a data allowance and use gv over 3g (or whatever they have), right? Although now that I think about it, I don't think she would be able to receive calls on her GV# because the original iphone won't allow talkatone to run in the background.

 

The speeds definitely won't matter to her - it would be strictly for phone calls. There's no way to have her iphone ring if I call her GV # though unless I forward her GV# to whatever temporary # she gets and that kind of defeats the purpose. It only makes sense if she could get a cheap pre-paid sim over there and have talkatone running in the background. No can do, right?

 

She has sprint but she would only need data on the original iPhone if there's a way to use Talkatone to receive google voice calls on that phone.

 

Sorry I haven't posted back in here, but I've been a little crazed at work. Anyway, I was able to put in a request with Sprint to have my sister's iphone 4s unlocked (they are complete morons at Sprint by the way - I spoke with three different people there and they each told me something completely different). I guess now she needs to sync with itunes to complete the unlock process and that could be an issue. I don't believe she has her computer with her and that's the computer that she syncs her iphone with (I'm pretty sure the only computer they have over there is her husband's laptop). Is there a way for her to complete the unlock process via itunes on her husband's computer without actually syncing her phone with his computer? If not, is there any other way for her to complete the unlock so she can buy a local pre-paid sim card for data use only and then use GV over whatever cellular service they have?

 

They definitely don't know what they're doing. Maybe I should just leave well enough alone. It would be extremely helpful if she didn't have to rely on wifi but I don't know if I could get them up and running quick enough to make it worth the trouble. I really should have taken care of this before they left but it didn't seem that important at the time.

 

Knowing my sister, she probably hasn't backed up that phone in weeks. I was hoping there might be another way for her to complete the unlock (something like a samprefs) but I guess not and I'm scared to even have her try to do it via itunes. Oh well. At least she has a phone that works over wifi and that's better than nothing.