A security system architecture and method of operation that combines a local security network with control panel and sensors, a central monitoring station (CMS), and a separate operator computer server that provides a web portal for both the homeowner and CMS, that maintains a persistent connection between the control panel and CMS allowing failsafe dual-path signaling. This dual-path signaling technique is extended to provide an effective “smash and grab alarm”, and various approaches to dual-path signal management are disclosed including handshaking, persistent domain monitoring, relayed Operator 3-to-CMS signaling, etc. Improved processes for remotely accessing video are also disclosed along with an improved process for remote control panel configuration, and control panel interfacing with home automation appliances.