diff --git a/harmonyqml/backend/client.py b/harmonyqml/backend/client.py
index a5363f57..c9f5ed5f 100644
--- a/harmonyqml/backend/client.py
+++ b/harmonyqml/backend/client.py
@@ -4,13 +4,13 @@
 import time
 from concurrent.futures import ThreadPoolExecutor
 from threading import Event
-from typing import DefaultDict, Tuple
+from typing import Any, DefaultDict, Dict, Optional, Tuple
 
 from PyQt5.QtCore import QObject, pyqtProperty, pyqtSignal, pyqtSlot
 
 import nio
-import nio.responses as nr
 import nio.events as ne
+import nio.responses as nr
 
 from .network_manager import NetworkManager
 from .pyqt_future import futurize
@@ -78,6 +78,16 @@ class Client(QObject):
         return self.nio.user_id
 
 
+    @pyqtSlot(str, result="QVariant")
+    @pyqtSlot(str, list, result="QVariant")
+    @pyqtSlot(str, list, "QVariantMap", result="QVariant")
+    def call(self,
+             method: str,
+             args:   Optional[list]           = None,
+             kwargs: Optional[Dict[str, Any]] = None) -> Any:
+        return getattr(self, method)(*args or [], **kwargs or {})
+
+
     @pyqtSlot(str)
     @pyqtSlot(str, str)
     @futurize()
@@ -232,3 +242,21 @@ class Client(QObject):
             )
 
         return send(self)
+
+
+    @pyqtSlot(str)
+    @futurize()
+    def joinRoom(self, room_id: str) -> None:
+        return self.net.talk(self.nio.join, room_id=room_id)
+
+
+    @pyqtSlot(str)
+    @futurize()
+    def leaveRoom(self, room_id: str) -> None:
+        return self.net.talk(self.nio.room_leave, room_id=room_id)
+
+
+    @pyqtSlot(str)
+    @futurize()
+    def forgetRoom(self, room_id: str) -> None:
+        raise NotImplementedError()
diff --git a/harmonyqml/components/chat/Banner.qml b/harmonyqml/components/chat/Banner.qml
index 597a1d4a..0fdb2d63 100644
--- a/harmonyqml/components/chat/Banner.qml
+++ b/harmonyqml/components/chat/Banner.qml
@@ -80,6 +80,10 @@ Rectangle {
                     icon.width: 32
                     display: bannerButtons.displayMode
 
+                    onClicked:
+                        Backend.clientManager.clients[chatPage.userId].
+                        call(modelData.clientFunction, modelData.clientArgs)
+
                     Layout.maximumWidth: bannerButtons.compact ? height : -1
                     Layout.fillHeight: true
                 }
diff --git a/harmonyqml/components/chat/InviteBanner.qml b/harmonyqml/components/chat/InviteBanner.qml
index ff17d659..47143414 100644
--- a/harmonyqml/components/chat/InviteBanner.qml
+++ b/harmonyqml/components/chat/InviteBanner.qml
@@ -19,11 +19,15 @@ Banner {
             text: "Accept",
             iconName: "accept",
             iconColor: Qt.hsla(0.45, 0.9, 0.3, 1),
+            clientFunction: "joinRoom",
+            clientArgs: [chatPage.roomId],
         },
         {
             text: "Decline",
             iconName: "decline",
             iconColor: Qt.hsla(0.95, 0.9, 0.35, 1),
+            clientFunction: "leaveRoom",
+            clientArgs: [chatPage.roomId],
         }
     ]
 }
diff --git a/harmonyqml/components/chat/LeftBanner.qml b/harmonyqml/components/chat/LeftBanner.qml
index be785f33..ec06be40 100644
--- a/harmonyqml/components/chat/LeftBanner.qml
+++ b/harmonyqml/components/chat/LeftBanner.qml
@@ -15,6 +15,8 @@ Banner {
             text: "Forget",
             iconName: "trash_can",
             iconColor: Qt.hsla(0.95, 0.9, 0.35, 1),
+            clientFunction: "forgetRoom",
+            clientArgs: [chatPage.roomId],
         }
     ]
 }