The biggest issue with this is the Communication key, and its not like the end user is able to fix this. If I am calling someone and they do not speak English, even when I try to keep things simple ...
Yes, communication is one of the most important tool in dealing your clients or office mates. That's why you have to know and learn some few words of their language or perhaps write it down search it on google with the new innovative ways of dealing technology today you can simply do that.