Final answer:
To maintain a clear and audible tone, you should project your voice around 5 feet beyond the person or telephone.
Step-by-step explanation:
To maintain a clear and audible tone, you should project your voice around 5 feet beyond the person or telephone. This ensures that the sound waves have enough space to travel and reach the listener without getting too weak or distorted. For example, if you are talking to someone in person, you should stand about 5 feet away from them to maintain a clear and audible tone.