diff --git a/linphone-desktop/CMakeLists.txt b/linphone-desktop/CMakeLists.txt
index 8a7ee997c..2395a8cf1 100644
--- a/linphone-desktop/CMakeLists.txt
+++ b/linphone-desktop/CMakeLists.txt
@@ -60,7 +60,7 @@ if(NOT WIN32)
     set(CUSTOM_FLAGS "${CUSTOM_FLAGS} -Wsuggest-override -Werror=suggest-override")
   endif()
 endif()
-set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} ${CUSTOM_FLAGS}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CUSTOM_FLAGS}")
 set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DQT_QML_DEBUG -DQT_DECLARATIVE_DEBUG")
 
 # ------------------------------------------------------------------------------
diff --git a/linphone-desktop/assets/languages/en.ts b/linphone-desktop/assets/languages/en.ts
index f678511d6..e2251aa47 100644
--- a/linphone-desktop/assets/languages/en.ts
+++ b/linphone-desktop/assets/languages/en.ts
@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
 <TS version="2.1">
+<context>
+    <name>About</name>
+    <message>
+        <source>ok</source>
+        <translation>OK</translation>
+    </message>
+</context>
 <context>
     <name>ActivateLinphoneSipAccountWithEmail</name>
     <message>
@@ -760,14 +767,6 @@ to chat or see the conversation history.</translation>
         <source>quit</source>
         <translation>Quit</translation>
     </message>
-    <message>
-        <source>importContacts</source>
-        <translation>Import contacts from vCards</translation>
-    </message>
-    <message>
-        <source>exportContacts</source>
-        <translation>Export contacts as vCards</translation>
-    </message>
 </context>
 <context>
     <name>ManageAccounts</name>
diff --git a/linphone-desktop/assets/languages/fr.ts b/linphone-desktop/assets/languages/fr.ts
index 76d33c0e4..cb42e703b 100644
--- a/linphone-desktop/assets/languages/fr.ts
+++ b/linphone-desktop/assets/languages/fr.ts
@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!DOCTYPE TS>
 <TS version="2.1">
+<context>
+    <name>About</name>
+    <message>
+        <source>ok</source>
+        <translation>OK</translation>
+    </message>
+</context>
 <context>
     <name>ActivateLinphoneSipAccountWithEmail</name>
     <message>
@@ -759,14 +766,6 @@ chatter ou voir l&apos;historique de conversation.</translation>
         <source>quit</source>
         <translation>Quitter</translation>
     </message>
-    <message>
-        <source>importContacts</source>
-        <translation>Importer des contacts depuis des vCards</translation>
-    </message>
-    <message>
-        <source>exportContacts</source>
-        <translation>Exporter des contacts sous forme de vCards</translation>
-    </message>
 </context>
 <context>
     <name>ManageAccounts</name>
diff --git a/linphone-desktop/resources.qrc b/linphone-desktop/resources.qrc
index 9719c97ea..235ed9ee0 100644
--- a/linphone-desktop/resources.qrc
+++ b/linphone-desktop/resources.qrc
@@ -343,6 +343,7 @@
     <file>ui/views/App/Calls/Incall.qml</file>
     <file>ui/views/App/Calls/IncomingCall.qml</file>
     <file>ui/views/App/Calls/OutgoingCall.qml</file>
+    <file>ui/views/App/Main/About.qml</file>
     <file>ui/views/App/Main/Assistant/ActivateLinphoneSipAccountWithEmail.qml</file>
     <file>ui/views/App/Main/Assistant/AssistantAbstractView.qml</file>
     <file>ui/views/App/Main/Assistant/AssistantHome.qml</file>
@@ -383,6 +384,7 @@
     <file>ui/views/App/SplashScreen/SplashScreen.qml</file>
     <file>ui/views/App/Styles/Calls/CallStyle.qml</file>
     <file>ui/views/App/Styles/Calls/CallsWindowStyle.qml</file>
+    <file>ui/views/App/Styles/Main/AboutStyle.qml</file>
     <file>ui/views/App/Styles/Main/Assistant/ActivateLinphoneSipAccountWithEmailStyle.qml</file>
     <file>ui/views/App/Styles/Main/Assistant/AssistantAbstractViewStyle.qml</file>
     <file>ui/views/App/Styles/Main/Assistant/AssistantHomeStyle.qml</file>
diff --git a/linphone-desktop/src/app/App.cpp b/linphone-desktop/src/app/App.cpp
index a1cacc723..afbab76a4 100644
--- a/linphone-desktop/src/app/App.cpp
+++ b/linphone-desktop/src/app/App.cpp
@@ -50,6 +50,10 @@
 
 #define QML_VIEW_SPLASH_SCREEN "qrc:/ui/views/App/SplashScreen/SplashScreen.qml"
 
+#ifndef LINPHONE_VERSION
+  #define LINPHONE_VERSION "unknown"
+#endif // ifndef LINPHONE_VERSION
+
 using namespace std;
 
 // =============================================================================
@@ -253,6 +257,12 @@ bool App::hasFocus () const {
 
 // -----------------------------------------------------------------------------
 
+QString App::getVersion () const {
+  return ::Utils::linphoneStringToQString(LINPHONE_VERSION);
+}
+
+// -----------------------------------------------------------------------------
+
 #define registerSharedSingletonType(TYPE, NAME, METHOD) qmlRegisterSingletonType<TYPE>( \
   "Linphone", 1, 0, NAME, \
   [](QQmlEngine *, QJSEngine *) -> QObject *{ \
diff --git a/linphone-desktop/src/app/App.hpp b/linphone-desktop/src/app/App.hpp
index 2c4fca871..d96903b32 100644
--- a/linphone-desktop/src/app/App.hpp
+++ b/linphone-desktop/src/app/App.hpp
@@ -37,6 +37,8 @@ class DefaultTranslator;
 class App : public SingleApplication {
   Q_OBJECT;
 
+  Q_PROPERTY(QString version READ getVersion CONSTANT);
+
   Q_PROPERTY(QString configLocale READ getConfigLocale WRITE setConfigLocale NOTIFY configLocaleChanged);
   Q_PROPERTY(QString locale READ getLocale CONSTANT);
   Q_PROPERTY(QVariantList availableLocales READ getAvailableLocales CONSTANT);
@@ -76,6 +78,8 @@ signals:
   void configLocaleChanged (const QString &locale);
 
 private:
+  QString getVersion () const;
+
   void registerTypes ();
   void setTrayIcon ();
 
diff --git a/linphone-desktop/src/components/core/CoreManager.cpp b/linphone-desktop/src/components/core/CoreManager.cpp
index 269e2ef31..e82140c01 100644
--- a/linphone-desktop/src/components/core/CoreManager.cpp
+++ b/linphone-desktop/src/components/core/CoreManager.cpp
@@ -79,7 +79,7 @@ VcardModel *CoreManager::createDetachedVcardModel () {
 
 void CoreManager::forceRefreshRegisters () {
   qInfo() << QStringLiteral("Refresh registers.");
-  mInstance->mCore->refreshRegisters();
+  mCore->refreshRegisters();
 }
 
 // -----------------------------------------------------------------------------
@@ -128,8 +128,14 @@ void CoreManager::createLinphoneCore (const QString &configPath) {
 
 // -----------------------------------------------------------------------------
 
+QString CoreManager::getVersion () const {
+  return ::Utils::linphoneStringToQString(mCore->getVersion());
+}
+
+// -----------------------------------------------------------------------------
+
 void CoreManager::iterate () {
   mInstance->lockVideoRender();
-  mInstance->mCore->iterate();
+  mCore->iterate();
   mInstance->unlockVideoRender();
 }
diff --git a/linphone-desktop/src/components/core/CoreManager.hpp b/linphone-desktop/src/components/core/CoreManager.hpp
index b13a8a7a9..18e374db9 100644
--- a/linphone-desktop/src/components/core/CoreManager.hpp
+++ b/linphone-desktop/src/components/core/CoreManager.hpp
@@ -42,6 +42,8 @@ class QTimer;
 class CoreManager : public QObject {
   Q_OBJECT;
 
+  Q_PROPERTY(QString version READ getVersion CONSTANT);
+
 public:
   ~CoreManager () = default;
 
@@ -121,6 +123,8 @@ private:
 
   void createLinphoneCore (const QString &configPath);
 
+  QString getVersion () const;
+
   void iterate ();
 
   std::shared_ptr<linphone::Core> mCore;
diff --git a/linphone-desktop/ui/modules/Linphone/Calls/CallStatistics.qml b/linphone-desktop/ui/modules/Linphone/Calls/CallStatistics.qml
index 755e5dfaf..e628de3b4 100644
--- a/linphone-desktop/ui/modules/Linphone/Calls/CallStatistics.qml
+++ b/linphone-desktop/ui/modules/Linphone/Calls/CallStatistics.qml
@@ -104,7 +104,7 @@ AbstractDropDownMenu {
       }
 
       Loader {
-        property string $label: qsTr("audioStatsLabel")
+        property string $label: qsTr('audioStatsLabel')
         property var $data: callStatistics.call.audioStats
 
         sourceComponent: media
@@ -112,7 +112,7 @@ AbstractDropDownMenu {
       }
 
       Loader {
-        property string $label: qsTr("videoStatsLabel")
+        property string $label: qsTr('videoStatsLabel')
         property var $data: callStatistics.call.videoStats
 
         sourceComponent: media
diff --git a/linphone-desktop/ui/views/App/Main/About.qml b/linphone-desktop/ui/views/App/Main/About.qml
new file mode 100644
index 000000000..58defb8ca
--- /dev/null
+++ b/linphone-desktop/ui/views/App/Main/About.qml
@@ -0,0 +1,115 @@
+import QtQuick 2.7
+import QtQuick.Layouts 1.3
+
+import Common 1.0
+import Linphone 1.0
+
+import App.Styles 1.0
+
+// =============================================================================
+
+DialogPlus {
+  buttons: [
+    TextButtonB {
+      text: qsTr('ok')
+
+      onClicked: exit(0)
+    }
+  ]
+
+  centeredButtons: true
+
+  height: AboutStyle.height
+  width: AboutStyle.width
+
+  Column {
+    anchors {
+      fill: parent
+      leftMargin: AboutStyle.leftMargin
+      rightMargin: AboutStyle.rightMargin
+    }
+
+    spacing: AboutStyle.spacing
+
+    RowLayout {
+      spacing: AboutStyle.versionsBlock.spacing
+
+      height: AboutStyle.versionsBlock.iconSize
+      width: parent.width
+
+      Icon {
+        icon: 'linphone_logo'
+        iconSize: parent.height
+      }
+
+      Column {
+        Layout.fillWidth: true
+        Layout.preferredHeight: parent.height
+
+        spacing: 0
+
+        Text {
+          color: AboutStyle.versionsBlock.appVersion.color
+          elide: Text.ElideRight
+          font.pointSize: AboutStyle.versionsBlock.appVersion.fontSize
+          text: 'Linphone Desktop ' + App.version
+
+          height: parent.height / 2
+          width: parent.width
+
+          verticalAlignment: Text.AlignVCenter
+        }
+
+        Text {
+          color: AboutStyle.versionsBlock.coreVersion.color
+          elide: Text.ElideRight
+          font.pointSize: AboutStyle.versionsBlock.coreVersion.fontSize
+          text: 'Linphone Core ' + CoreManager.version
+
+          height: parent.heigth / 2
+          width: parent.width
+
+          verticalAlignment: Text.AlignVCenter
+        }
+      }
+    }
+
+    Column {
+      spacing: AboutStyle.copyrightBlock.spacing
+      width: parent.width
+
+      Text {
+        elide: Text.ElideRight
+        font.pointSize: AboutStyle.copyrightBlock.url.fontSize
+        linkColor: AboutStyle.copyrightBlock.url.color
+        text: '<a href="https://www.linphone.org">https://www.linphone.org</a>'
+
+        width: parent.width
+
+        horizontalAlignment: Text.AlignHCenter
+
+        onLinkActivated: Qt.openUrlExternally(link)
+
+        MouseArea {
+          anchors.fill: parent
+          acceptedButtons: Qt.NoButton
+          cursorShape: parent.hoveredLink
+            ? Qt.PointingHandCursor
+            : Qt.IBeamCursor
+        }
+      }
+
+      Text {
+        color: AboutStyle.copyrightBlock.license.color
+        elide: Text.ElideRight
+        font.pointSize: AboutStyle.copyrightBlock.license.fontSize
+
+        text: 'GNU General Public License V2\n\u00A9 2010-2017 Belledonne Communications'
+
+        width: parent.width
+
+        horizontalAlignment: Text.AlignHCenter
+      }
+    }
+  }
+}
diff --git a/linphone-desktop/ui/views/App/Main/MainWindowMenuBar.qml b/linphone-desktop/ui/views/App/Main/MainWindowMenuBar.qml
index 152efdbc5..de517093c 100644
--- a/linphone-desktop/ui/views/App/Main/MainWindowMenuBar.qml
+++ b/linphone-desktop/ui/views/App/Main/MainWindowMenuBar.qml
@@ -7,16 +7,16 @@ import Linphone 1.0
 
 import App.Styles 1.0
 
-// ============================================================================
+// =============================================================================
 
 MenuBar {
   id: container
 
-  // --------------------------------------------------------------------------
+  // ---------------------------------------------------------------------------
 
   property bool hide: false
 
-  // --------------------------------------------------------------------------
+  // ---------------------------------------------------------------------------
 
   // Workaround to hide toolbar.
   // Use private properties of MenuBar.
@@ -29,7 +29,7 @@ MenuBar {
     yScale: Number(!hide)
   }
 
-  // --------------------------------------------------------------------------
+  // ---------------------------------------------------------------------------
 
   style: MenuBarStyle {
     background: Rectangle {
@@ -109,9 +109,12 @@ MenuBar {
     }
   }
 
-  // --------------------------------------------------------------------------
+  // ---------------------------------------------------------------------------
+  // Options.
+  // ---------------------------------------------------------------------------
 
   Menu {
+
     title: qsTr('options')
 
     MenuItem {
@@ -138,36 +141,43 @@ MenuBar {
     }
   }
 
+  // ---------------------------------------------------------------------------
+  // Tools.
+  // ---------------------------------------------------------------------------
+
   Menu {
     title: qsTr('tools')
 
     MenuItem {
       text: qsTr('audioAssistant')
-    }
 
-    MenuSeparator {}
-
-    MenuItem {
-      text: qsTr('importContacts')
-    }
-
-    MenuItem {
-      text: qsTr('exportContacts')
+      onTriggered: console.log('TODO')
     }
   }
 
+  // ---------------------------------------------------------------------------
+  // Help.
+  // ---------------------------------------------------------------------------
+
   Menu {
     title: qsTr('help')
 
     MenuItem {
       shortcut: StandardKey.HelpContents
       text: qsTr('about')
+
+      onTriggered: {
+        window.detachVirtualWindow()
+        window.attachVirtualWindow(Qt.resolvedUrl('About.qml'))
+      }
     }
 
     MenuSeparator {}
 
     MenuItem {
       text: qsTr('checkForUpdates')
+
+      onTriggered: console.log('TODO')
     }
   }
 }
diff --git a/linphone-desktop/ui/views/App/SplashScreen/SplashScreen.qml b/linphone-desktop/ui/views/App/SplashScreen/SplashScreen.qml
index 4446e91b1..f45538865 100644
--- a/linphone-desktop/ui/views/App/SplashScreen/SplashScreen.qml
+++ b/linphone-desktop/ui/views/App/SplashScreen/SplashScreen.qml
@@ -30,7 +30,7 @@ Window {
     fillMode: Image.PreserveAspectFit
     mipmap: true
 
-    source: SplashScreenStyle.image
+    source: Constants.imagesPath + 'splash_screen' + Constants.imagesFormat
 
     BusyIndicator {
       height: SplashScreenStyle.busyIndicator.height
diff --git a/linphone-desktop/ui/views/App/Styles/Main/AboutStyle.qml b/linphone-desktop/ui/views/App/Styles/Main/AboutStyle.qml
new file mode 100644
index 000000000..07c483d51
--- /dev/null
+++ b/linphone-desktop/ui/views/App/Styles/Main/AboutStyle.qml
@@ -0,0 +1,43 @@
+pragma Singleton
+import QtQuick 2.7
+
+import Common 1.0
+
+// =============================================================================
+
+QtObject {
+  property int height: 225
+  property int leftMargin: 25
+  property int rightMargin: 25
+  property int spacing: 20
+  property int width: 400
+
+  property QtObject copyrightBlock: QtObject {
+    property int spacing: 10
+
+    property QtObject license: QtObject {
+      property color color: Colors.d
+      property int fontSize: 10
+    }
+
+    property QtObject url: QtObject {
+      property color color: Colors.i
+      property int fontSize: 10
+    }
+  }
+
+  property QtObject versionsBlock: QtObject {
+    property int iconSize: 48
+    property int spacing: 10
+
+    property QtObject appVersion: QtObject {
+      property color color: Colors.d
+      property int fontSize: 10
+    }
+
+    property QtObject coreVersion: QtObject {
+      property color color: Colors.d
+      property int fontSize: 10
+    }
+  }
+}
diff --git a/linphone-desktop/ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml b/linphone-desktop/ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml
index c25094635..ddbc957f6 100644
--- a/linphone-desktop/ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml
+++ b/linphone-desktop/ui/views/App/Styles/SplashScreen/SplashScreenStyle.qml
@@ -7,7 +7,6 @@ QtObject {
   property color color: '#444444' // Not a `Common.Color`. Specific case.
   property int height: 350
   property int width: 620
-  property url image: 'qrc:/assets/images/splash_screen.svg'
 
   property QtObject busyIndicator: QtObject {
     property int bottomMargin: 25
diff --git a/linphone-desktop/ui/views/App/Styles/qmldir b/linphone-desktop/ui/views/App/Styles/qmldir
index c031135ea..b18d02ec9 100644
--- a/linphone-desktop/ui/views/App/Styles/qmldir
+++ b/linphone-desktop/ui/views/App/Styles/qmldir
@@ -13,6 +13,7 @@ singleton AssistantHomeStyle                       1.0 Main/Assistant/AssistantH
 singleton CreateLinphoneSipAccountStyle            1.0 Main/Assistant/CreateLinphoneSipAccountStyle.qml
 singleton UseLinphoneSipAccountStyle               1.0 Main/Assistant/UseLinphoneSipAccountStyle.qml
 
+singleton AboutStyle                               1.0 Main/AboutStyle.qml
 singleton AssistantStyle                           1.0 Main/AssistantStyle.qml
 singleton AuthenticationRequestStyle               1.0 Main/AuthenticationRequestStyle.qml
 singleton ContactEditStyle                         1.0 Main/ContactEditStyle.qml