All incoming calls should be answered in a timely manner. People often choose not to answer the phone while they are busy doing something else. Do not let the phone ring unit it stops because you will never know if it is an urgent call or not. Well, if it is an urgent call, you made the right decision about answering the phone. And although it is not an urgent call, at least you can ask the caller to call again or least you can ask the caller to call again or leave a message, which does not take long at all.