My wife answer's the phone during the normal business hours, which is good because most people like talking to a live person. But, we do get phone calls as late as 10pm sometimes and as early as 5am. I just had a customer call today at 5:00am. I wasn't even awake yet, but she was just getting off of work. She is a nurse at the local hospital. I hate that they call at strange hours, but I guess that is the only time they might have to call us.