I am currently in Kuala Lumpur and this morning we had a conference call with a customer in China regarding a project they were asking our advise on. The discussion was held partly in English, partly in Cantonese. Frankly, my knowledge of Cantonese is zero, or even worse, which means I did not get anything of what was said in that language. Fortunately, I had with me in the room one of my friends who can understand the language reasonably well.
This sounded invaluable, as it allowed me to assess more or less the thinking and feeling of the customer. Not being able to see him, it is important for me to understand how what I am saying is actually coming over. In some cultures, and when you know the language, you can assess that from the tone used. Unfortunately, when things just sound as a series of sounds without any meaning to you, it is very difficult to assess things.
That's the reason why it is of the uttermost important, when holding such discussions, to have somebody with appropriate language (and culture) understanding to keep you on the right track. And it needs to be a person you can trust. Particularly with Asians, that are very good at not showing their emotions, having such an ally is critical for any serious negotiations. Here again, I can 
only stress the importance of gaining a good understanding of what is in the mind of the person at the other side of the line. Keep that in mind when having discussions over long distances. Otherwise, you will be flying blind and may end-up in completely the wrong place. Remember this old Chinese proverb (actually this is how it was explained to me) "If you do not know where you are, no map will help"
