A system and methods comprise a touchscreen at a premises. The touchscreen includes a processor coupled to a security system at the premises. User interfaces are presented via the touchscreen and include a security interface that provides control of functions of and access to data collected by the security system, and a network interface that provides access to network devices. A plurality of network devices at the premises is coupled to the touchscreen. A security server at a remote location is coupled to the touchscreen. The security server comprises a client interface through which remote client devices exchange data with the touchscreen and the security system. The client interface is a cross-client interface provided by a client view model of at least one of the touchscreen and the security server that normalizes information of the plurality of network devices and the security system.