feat(ui/views/App/Calls/IncallFullscreenWindow): supports telephone keypad

linphone-desktop/ui/views/App/Calls/IncallFullscreenWindow.qml

@@ -181,6 +181,12 @@ Window {
           iconSize: CallStyle.header.iconSize
           visible: !hideButtons
 
+          ActionButton {
+            icon: 'tel_keypad'
+
+            onClicked: telKeypad.visible = !telKeypad.visible
+          }
+
           ActionButton {
             icon: 'screenshot'
 
@@ -357,4 +363,15 @@ Window {
       }
     }
   }
+
+  // ---------------------------------------------------------------------------
+  // TelKeypad.
+  // ---------------------------------------------------------------------------
+
+  TelKeypad {
+    id: telKeypad
+
+    call: incall.call
+    visible: false
+  }
 }