Originally Posted by Dubai Stu

I have ATT's unlimited International Data for iPhone on my iPhone. My second phone is a tiny Nokia Asha 311. I picked it because it was tiny, relatively basic, and supported pentaband HSPA. It is a touch screen so it isn't completely basic, but my opinion is that too many carriers will be phasing out 2g GSM and you'll have better coverage if your phone supports both.

The phone is going for $99 on Amazon. The version I got was gray marketed in from India. The downsides are that the VOIP is not user programmable (you need to have provider tools), I haven't found a way to use to tether other than via a cable. These are probably not relevant for your needs.