I was thinking about signing up to a voip service such as skype or scantalk, or whatever else is out there, but I'm a little concerned I'll end up on one network not being able to contact people on another network. The natural leaning is therefore probably skype as that's what most people have heard about, but they're owned by ebay now...
what are the points to look for in a good service, and are there any services which you'd suggest I avoid or look at for some reason or another?
ta
p.s. I will be looking to use this to call internationally as well as locally...