We have a company in Toronto and all the exterior doors controlled by an older access control system. It's getting pretty old and I would like to upgrade, and I'm doing some research and realized someone here might have some tips. I would prefer a system that I could remotely access different areas of my company using my mobile device. Yesterday, I approached a professional service that offers access control systems. I would like to know your suggestions too about choosing an access control system. Please share your suggestions?