First of all, those monitoring companies (at least where I live), send their own person, not the police. Maybe they call the police if they see that a break in is happening but first they check it out themselves first. So really you'd have to send yourself a notification (on iOS they have the emergency ones that always go through and loudly ring on your phone). Then you'd have to check it out yourself. Calling the police automatically every time sounds like a bad idea. At least with my system it would have been like 50 false alarms and no real alarms to the police over the last 15 years.