A voice that the person on the other end will find very relatable. He/she will probably feel as though I have been there, and done that. That means one thing. "Trust". With trust comes the urge to buy into, and then buy.
I have been the morning voice of the Mahoning Valley for almost 40 years. To this day I amazed when I am in public, and someone will start a conversation with me, not because they recognize my face, but because they recognize my voice. My voiceover work includes having done thousands of local and regional radio spots over the course of that time.