Misunderstanding Between G. Bush and C. Rice

I watched and listened the video, the happen is a misunderstanding conversation in the phone between Josh Bush and Condollenze Rice.
 Leader of China (Hu Jintao)  = who
The Former President of PLA Yasser Arafat = Yes Sir
The Secretary of United Nation Kofi Annan = Coffe
The Secretary of amerika Condolezza Rice  = Rice

That thing happened because of there are similiar voice that you speak,but there are different meaning if you catch it or spell it carefully.So,I can conclude that We want to speak,we have to speak clearly with great Spell and good intonation so the listener can catch the meaning more accurate.