Thank you all for your advice so far. It has helped me tremendously.
Since I too have had problems with E-Plus (in 2007) I am inclined to try Fonic. What's holding me back is Fonic's much higher roaming rate for calls from some country
to some other country
. Of course, if you can't make or receive the call, then it is cheaper still, isn't it?
The roaming does represent only about 20% of my intended use.
I'll be out-of-touch for a few days and will respond to the most recent, and any future posts, when I return. Thanks again.