A universal data gate converts between interface format types of interconnected systems. The data gate learns new interface types and greatly simplifies the requirement for a human user to reprogram the new interface types. A library of known interface types is built up over time and allows re-use of known interface types as required. Voice based room control is enabled by automatically activating the voice control on a guest device when the guest is checked in to a hotel room. Text corresponding to voice commands captured from the user's voice is passed to a hotel app. The system automatically pairs the guest device with the user's assigned room and determines which in-room controllable devices are to be operated by the user's voice commands. When the user switches to a new guest room during travel, the system automatically updates the room pairing and new voice commands operate the new in-room devices.