[
        {"roomId": 0, "roomName": "Global"},
        {"roomId": 1, "roomName": "Raum 1"},
        {"roomId": 2, "roomName": "Raum 2"},
        {"roomId": 3, "roomName": "Raum 3"},
        {"roomId": 4, "roomName": "Raum 4"}
]