I had ADT for 20 years, alarm tripped at least 100 times....they never even called! ADT sucks. Go local with someone who runs a business in or near ur town.
Wireless is great if you live somewhere where the power never goes out.. or cable for that matter. Weather is always a factor.
Course I have a generator and a dog!
About a year ago I read an article about how criminals love to break into houses with ADT signs in the yard.
The reason was that they could break into the house and it would take about 15 minutes before anyone came to investigate why the alarm went off.
It takes only 5 minutes to go to the master bedroom, get all of the goodies and leave.
I have a vicious mini-dachshund that is the best alarm one could have....and signs on my doors and windows stating that a break-in will result in death.