After a recent international trip where I legitimately made $200 with calls and got taxed $100 I am looking for a work around.

First, is there a slick SMS based International Phone callback service that anyone can recommend. Some where I text a service and it calls me back and then lets me call other parties at a low rate.

This may be deemed not a BB topic, but I wanted to ask. The goal here is simple cut down on those international phone bills. I already use SkypeOut from my BB and it is marginal and I use the TMobile UMA, but I need a solution for when I am not in a hotspot.

Any suggestions are welcome.