Central station monitoring is a great option for security systems because it lets the police know if someone broke into the house. Find out how a monitored security system tapes into a phone line with help from a specialist of the alarm business in this free video on home security systems. Expert: David Pearson Contact: www.avahomemediasystems.com Bio: David Pearson is the CEO of AVA Home Media Systems, and has been involved in the alarm business for 25 years. Filmmaker: Suzie Vigoin