We have an answering service that handles overflow calls. I've got two ladies that answer calls in the office but if the lines are busy, or it's after hours the calls auto forward over to my service.
I think we pay about 600 a month which is a whole lot less than hiring a third person or having my calls go to an answering machine or cell phone. That may sound really high to some but on some days we run anywhere from 75-150 calls a day.
I don't like for customers to have to leave a message, in most cases when they hang up they call the next company on the list. Whoever they reach first gets the job.
They way I have things setup, 98% of the calls that come in we close the sale on.
Here's their site www.easyphoneansweringservice.com