I'm new to this site, so if this is not the right place for my question, please let me know, or repost it elsewhere. I've read through this and several other posts, and I am unclear about a few things, which perhaps I overlooked in my reading.
1) Callbackworld seems the cheapest way to go for international calls. If I understand correctly, for someone to call me from the US, they use the toll-free number and pin. If I call the US, I can use the callback feature. But, I will be in Portugal and France, both of which have toll free numbers. So, is it best to call those toll-free numbers to call the US? How about to call within Portugal or France, or between them?
2) SMS does not appear to be covered by any of the callbackworld options. Is that correct?
3) Is there any particular reason to use United Mobile with Callbackworld, as opposed to one of the other international cards? GeoSim appeared to have better rates for direct calls and SMS, with no setup charge, though perhaps a bigger initial outlay. Does CBW work w/ any of them?
4) Sometimes I think I'm obsessing endlessly over what will turn out to be maybe $100 out of a several thousand dollar vacation. But, it's entertainment!
Thank you for any help.