Your normal passcode
s can always disarm the system however regardless of what passcode was used to activate the security system. For example, you have a babysitter watch your kids while you’re out on the town with your wife. The babysitter can arm and disarm the system while you’re gone, but once you arm the system with “your” passcode, the babysitter code can no longer be used to disarm the system. Cellular provides increased security since the line cannot be “cut” by an intruder before entering. The most popular communication method today is broadband Internet
with cellular backup. IP communication with the central station over the Internet is lower cost.