I have virtual office agreements with a company called Regus, website is
www.hq.com. They offer different types of agreements from using their offices as mailing locations, to phone and support services, to day offices and hourly conference rooms to full monthly rentals. I have used different office locations around the country and have been satisfied with their services. Some of the offices collect and forward mail for me, one has answered phones for me and I have booked office space for meetings at many of them. I have never used one of their NC locations but I know they have offices in Durham.