diff --git a/samples/blackgui/mainwindow.ui b/samples/blackgui/mainwindow.ui
index 8062bb277..a9c823006 100644
--- a/samples/blackgui/mainwindow.ui
+++ b/samples/blackgui/mainwindow.ui
@@ -461,7 +461,7 @@ QStatusBar QLabel {
           <enum>QFrame::NoFrame</enum>
          </property>
          <property name="currentIndex">
-          <number>4</number>
+          <number>7</number>
          </property>
          <widget class="QWidget" name="pg_StatusPage">
           <property name="sizePolicy">
@@ -571,8 +571,8 @@ QStatusBar QLabel {
                <rect>
                 <x>0</x>
                 <y>0</y>
-                <width>90</width>
-                <height>59</height>
+                <width>326</width>
+                <height>267</height>
                </rect>
               </property>
               <attribute name="label">
@@ -859,7 +859,7 @@ QStatusBar QLabel {
            <item>
             <widget class="QTabWidget" name="tw_Settings">
              <property name="currentIndex">
-              <number>0</number>
+              <number>2</number>
              </property>
              <widget class="QWidget" name="tb_SettingsTrafficNetwork">
               <attribute name="title">
@@ -1355,6 +1355,13 @@ QStatusBar QLabel {
                    </property>
                   </widget>
                  </item>
+                 <item row="10" column="1">
+                  <widget class="QCheckBox" name="cb_SettingsAudioNotificationVoiceRoom">
+                   <property name="text">
+                    <string>notification for join/leave voice room</string>
+                   </property>
+                  </widget>
+                 </item>
                 </layout>
                </item>
               </layout>
diff --git a/samples/blackgui/mainwindow_init.cpp b/samples/blackgui/mainwindow_init.cpp
index 471cdbf54..31a0df1c9 100644
--- a/samples/blackgui/mainwindow_init.cpp
+++ b/samples/blackgui/mainwindow_init.cpp
@@ -261,16 +261,22 @@ void MainWindow::initialDataReads()
     this->reloadSettings(); // init read
     this->reloadOwnAircraft(); // init read, independent of traffic network
 
+    // also reads bookings if not connected
     if (this->getIContextNetwork()->isConnected())
     {
         // connection is already established
-        this->ui->comp_Aircrafts->update();
         this->ui->comp_AtcStations->update();
+        this->ui->comp_Aircrafts->update();
 
         this->updateGuiStatusInformation();
         this->ui->comp_Users->update();
         this->ui->comp_Aircrafts->update();
     }
+    else
+    {
+        // Initial booking read
+        QTimer::singleShot(30 * 1000, this->ui->comp_AtcStations, SLOT(update()));
+    }
 
     this->displayStatusMessage(CStatusMessage(CStatusMessage::TypeGui, CStatusMessage::SeverityInfo, "initial data read"));
 }
diff --git a/src/blackgui/atcstationcomponent.cpp b/src/blackgui/atcstationcomponent.cpp
index 20c39fa29..86e5306d9 100644
--- a/src/blackgui/atcstationcomponent.cpp
+++ b/src/blackgui/atcstationcomponent.cpp
@@ -21,9 +21,9 @@ namespace BlackGui
         connected = this->connect(this->ui->pb_AtcStationsLoadMetar, SIGNAL(clicked()), this, SLOT(getMetar()));
         Q_ASSERT(connected);
         this->connect(this, &QTabWidget::currentChanged, this, &CAtcStationComponent::atcStationsTabChanged);
-        this->connect(this->ui->pb_ReloadAtcStationsBooked, &QPushButton::clicked, this, &CAtcStationComponent::reloadAtcStationsBooked);
         this->connect(this->ui->tvp_AtcStationsOnline, &QTableView::clicked, this, &CAtcStationComponent::onlineAtcStationSelected);
         this->connect(this->ui->pb_AtcStationsAtisReload, &QPushButton::clicked, this, &CAtcStationComponent::requestAtis);
+        this->connect(this->ui->pb_ReloadAtcStationsBooked, &QPushButton::clicked, this, &CAtcStationComponent::reloadAtcStationsBooked);
     }
 
     CAtcStationComponent::~CAtcStationComponent()
@@ -46,11 +46,11 @@ namespace BlackGui
         Q_ASSERT(this->ui->tvp_AtcStationsOnline);
         Q_ASSERT(this->getIContextNetwork());
 
+        // initial read for bookings
+        if (this->ui->tvp_AtcStationsBooked->isEmpty()) this->reloadAtcStationsBooked();
+
         if (this->getIContextNetwork()->isConnected())
         {
-            // initial read for bookings
-            if (this->ui->tvp_AtcStationsBooked->isEmpty()) this->reloadAtcStationsBooked();
-
             // update
             if (this->m_timestampOnlineStationsChanged.isNull() || this->m_timestampLastReadOnlineStations.isNull() ||
                     (this->m_timestampOnlineStationsChanged > this->m_timestampLastReadOnlineStations))
@@ -71,11 +71,8 @@ namespace BlackGui
         Q_ASSERT(this->ui->tvp_AtcStationsBooked);
         Q_ASSERT(this->getIContextNetwork());
 
-        if (this->getIContextNetwork()->isConnected())
-        {
-            this->ui->tvp_AtcStationsBooked->update(this->getIContextNetwork()->getAtcStationsBooked());
-            this->m_timestampLastReadBookedStations = QDateTime::currentDateTimeUtc();
-        }
+        this->ui->tvp_AtcStationsBooked->update(this->getIContextNetwork()->getAtcStationsBooked());
+        this->m_timestampLastReadBookedStations = QDateTime::currentDateTimeUtc();
     }
 
     void CAtcStationComponent::changedAtcStationsOnline()