Not sure about where you live, but if your phone line is cut in TX, the cops show up. And it usually isn't fun. Also, if an alarm goes off in the middle of the night in my house, step 1 grab gun. Step 2, get my daughter out of bed. Step 3 get my son out of bed. Step 4 get behind the bed with the gun pointed at the door and put 911 on speaker phone. A lot of people rely on the alarm company. What they don't realize is the response time will be better if you call yourself, especially if you say your alarm was just tripped and it's 2 AM.
"When a strong man, fully armed, guards his own palace, his goods are safe."