" If a burglar cuts the telephone line outside my premise, will the 24 hour monitoring center still receive the alarm signal "?

If an alarm company's salesman says no, find another alarm company that will say yes.

Our answer is YES, because our systems send alarm signals to the 24 hour monitoring center via the AT&T wireless cellular network. We provide nationwide 24 hour cellular monitoring service in all locations that have cellular phone service available. Click on the cellular coverage map to see if you have cell service at your location.