china->usa can use skype or wechat. not sure about GV since i didn't try it. GV for US->China mostly. if google wasn't banned in china then GV may have some market share there too i think many years ago i also used italkbb, but now we mostly use wechat or ipad facetime
【在 b***n 的大作中提到】 : 我们一直用ITALKBB的,没觉得什么大问题.主要是他提供中国的号,国内打过来很方便. : GOOGLE VOICE可以吗?费用怎样呢?