Sophie gives you greater control of your home security system.  With a Sophie-compatible security panel, you can arm and disarm your system by voice.  If your system is violated, you can tell Sophie to call you on your cell phone or at the office or at any number you designate.  You may want Sophie to call your neighbour if you are away on vacation.  If your system detects smoke or fire in your house during evening hours, you can tell Sophie to turn on all the lights in the house and play loud music in order to wake up sleeping residents.  This is all possible because Sophie integrates all the systems in the house on the PC - when the security system is triggered, other systems can be told to respond.  With Sophie, you are limited only by your imagination.