Paying to receive a call seems to a mostly American phenomenon. In most (all?) of Europe, receiving calls is always free, no matter where or how they originate.
I think now this is correct due to European laws, but not that long ago, if you were not in your home country and someone called you, you could be billed for the international part of the call. Nowadays the agreements telcos were forced to put in place means this is largely solved in the EU, and quite cheap outside of it.