A:Answer https://simplisafe.com. There is a phone icon on the site for you to call with your questions. Also on the site, they state they have 6 call centers. I bought this for my son's University apartment. Partly, I wanted him to try it out to see if we wanted to replace our home system with SimpliSafe. In the first week, there was an unscheduled maintenance visit that generated calls to my son and then to me. Everything worked as you would expect. SimpliSafe was recommended to me from a co-worker who also had immediate contact from SimpliSafe when her house was broken into. Note: there are still older systems being sold as well as the new system. You can find plenty of information on both systems on the internet retail store sites.