I know IBMS term is big word. Just wonder have anyone attempt to integrate any IBMS with SIP especially using SER of any sort, it could be a simple as using appliance controller such as X.10 to switch on/off a lamp or open/clooor door, from an SIP UA, such as IP Phone, up to programming a plug-ins to interface with IBMS system controller it self. Am exploring how this kind of integration has matured, what kind of functions/feature that SIP can offer to the IBMS. What is development effort of SER is required to make this kind integration works? Thanks SSng