This is just a warning for all people who would like to buy a home security service from ADT - be careful on the points below before signing anything: We rent a house and ADT was already installed here. So we called ADT (1) and wanted to activate the system at our residence. (1- make sure you always call the ADT's national number you get from internet, not a local office or a 1-800 number you see somewhere. I actually do not remember where we found their number but it turned out that it is the number of the local office, even... read full review »