The fancies of Old Possum aside, it’s my experience that cats generally don’t care what you call them as long as you feed them and give them water. Since they don’t understand what you’re saying, or what their “name” means anyway, they more than likely associate the sounds of their name with a vague concept that you are addressing them, if indeed they think about it at all. Certainly, one’s tone of voice and facial expressions influences their interpretations of the sounds one makes as well. Consider too, that if everyone stops calling a cat by whatever name it was previously given, it will eventually begin to recognize the new sounds of its new name, and do with it what it will. Just keep the food and water coming.