diff --git a/src/blackcore/context_all_empties.h b/src/blackcore/context_all_empties.h
index 14884ba6e..8df5bfb2a 100644
--- a/src/blackcore/context_all_empties.h
+++ b/src/blackcore/context_all_empties.h
@@ -2,11 +2,10 @@
 #define BLACKCORE_CONTEXT_ALL_EMPTIES_H
 
 // #include "context_application_empty.h"
-// #include "context_audio_empty.h"
+#include "context_audio_empty.h"
 #include "context_network_empty.h"
 // #include "context_ownaircraft_empty.h"
 // #include "context_settings_empty.h"
 // #include "context_simulator_empty.h"
 
-
 #endif // guard
diff --git a/src/blackcore/context_audio.cpp b/src/blackcore/context_audio.cpp
index 09127ccea..22356ced5 100644
--- a/src/blackcore/context_audio.cpp
+++ b/src/blackcore/context_audio.cpp
@@ -10,21 +10,22 @@
 #include "context_audio.h"
 #include "context_audio_impl.h"
 #include "context_audio_proxy.h"
+#include "context_audio_empty.h"
 
 namespace BlackCore
 {
 
-    IContextAudio *IContextAudio::create(CRuntime *parent, CRuntimeConfig::ContextMode mode, CDBusServer *server, QDBusConnection &conn)
+    IContextAudio *IContextAudio::create(CRuntime *runtime, CRuntimeConfig::ContextMode mode, CDBusServer *server, QDBusConnection &conn)
     {
         switch (mode)
         {
         case CRuntimeConfig::Local:
         case CRuntimeConfig::LocalInDbusServer:
-            return (new CContextAudio(mode, parent))->registerWithDBus(server);
+            return (new CContextAudio(mode, runtime))->registerWithDBus(server);
         case CRuntimeConfig::Remote:
-            return new BlackCore::CContextAudioProxy(BlackCore::CDBusServer::ServiceName, conn, mode, parent);
+            return new CContextAudioProxy(BlackCore::CDBusServer::ServiceName, conn, mode, runtime);
         default:
-            return nullptr; // audio not mandatory
+            return new CContextAudioEmpty(runtime); // audio not mandatory
         }
     }
 } // namespace
diff --git a/src/blackcore/context_audio_empty.h b/src/blackcore/context_audio_empty.h
new file mode 100644
index 000000000..f2099f6fc
--- /dev/null
+++ b/src/blackcore/context_audio_empty.h
@@ -0,0 +1,173 @@
+/* Copyright (C) 2015
+ * swift Project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+//! \file
+
+#ifndef BLACKCORE_CONTEXTAUDIO_EMPTY_H
+#define BLACKCORE_CONTEXTAUDIO_EMPTY_H
+
+#include "context_audio.h"
+#include "dbus_server.h"
+#include "voice.h"
+
+namespace BlackCore
+{
+    class IVoiceChannel;
+
+    //! Audio context implementation
+    class CContextAudioEmpty : public IContextAudio
+    {
+    public:
+
+        //! Constructor
+        CContextAudioEmpty(CRuntime *runtime) : IContextAudio(CRuntimeConfig::NotUsed, runtime) {}
+
+    public slots:
+        //! \copydoc IContextAudio::getComVoiceRooms()
+        virtual BlackMisc::Audio::CVoiceRoomList getComVoiceRooms() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Audio::CVoiceRoomList();
+        }
+
+        //! \copydoc IContextAudio::getComVoiceRoomsWithAudioStatus()
+        virtual BlackMisc::Audio::CVoiceRoomList getComVoiceRoomsWithAudioStatus() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Audio::CVoiceRoomList();
+        }
+
+        //! \copydoc IContextAudio::getVoiceRoom
+        virtual BlackMisc::Audio::CVoiceRoom getVoiceRoom(int comUnitValue, bool withAudioStatus) const override
+        {
+            Q_UNUSED(comUnitValue);
+            Q_UNUSED(withAudioStatus);
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Audio::CVoiceRoom();
+        }
+
+        //! \copydoc IContextAudio::setComVoiceRooms
+        virtual void setComVoiceRooms(const BlackMisc::Audio::CVoiceRoomList &newRooms) override
+        {
+            Q_UNUSED(newRooms);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContextAudio::getRoomCallsigns()
+        virtual BlackMisc::Aviation::CCallsignList getRoomCallsigns(int comUnitValue) const override
+        {
+            Q_UNUSED(comUnitValue);
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Aviation::CCallsignList();
+        }
+
+        //! \copydoc IContextAudio::getRoomUsers()
+        virtual BlackMisc::Network::CUserList getRoomUsers(int comUnitValue) const override
+        {
+            Q_UNUSED(comUnitValue);
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Network::CUserList();
+        }
+
+        //! \copydoc IContextAudio::leaveAllVoiceRooms
+        virtual void leaveAllVoiceRooms() override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContextAudio::getAudioDevices()
+        virtual BlackMisc::Audio::CAudioDeviceInfoList getAudioDevices() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Audio::CAudioDeviceInfoList();
+        }
+
+        //! \copydoc IContextAudio::getCurrentAudioDevices()
+        virtual BlackMisc::Audio::CAudioDeviceInfoList getCurrentAudioDevices() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return BlackMisc::Audio::CAudioDeviceInfoList();
+        }
+
+        //! \copydoc IContextAudio::setCurrentAudioDevice()
+        virtual void setCurrentAudioDevice(const BlackMisc::Audio::CAudioDeviceInfo &audioDevice) override
+        {
+            Q_UNUSED(audioDevice);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContext::setVoiceOutputVolume
+        virtual void setVoiceOutputVolume(int volume) override
+        {
+            Q_UNUSED(volume);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContext::getVoiceOutputVolume
+        virtual int getVoiceOutputVolume() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return 0;
+        }
+
+        //! \copydoc ICOntext::setMute
+        virtual void setMute(bool muted) override
+        {
+            Q_UNUSED(muted);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContextAudio::isMuted()
+        virtual bool isMuted() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return false;
+        }
+
+        //! \copydoc IContextAudio::playSelcalTone()
+        virtual void playSelcalTone(const BlackMisc::Aviation::CSelcal &selcal) const override
+        {
+            Q_UNUSED(selcal);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContextAudio::playNotification()
+        virtual void playNotification(uint notification, bool considerSettings) const override
+        {
+            Q_UNUSED(notification);
+            Q_UNUSED(considerSettings);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc IContextAudio::enableAudioLoopback()
+        virtual void enableAudioLoopback(bool enable = true) override
+        {
+            Q_UNUSED(enable);
+            logEmptyContextWarning(Q_FUNC_INFO);
+        }
+
+        //! \copydoc ICOntextAudio::isAudioLoopbackEnabled
+        virtual bool isAudioLoopbackEnabled() const override
+        {
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return false;
+        }
+
+        //! \copydoc IContextAudio::parseCommandLine
+        virtual bool parseCommandLine(const QString &commandLine) override
+        {
+            Q_UNUSED(commandLine);
+            logEmptyContextWarning(Q_FUNC_INFO);
+            return false;
+        }
+
+    };
+} // namespace
+
+#endif // guard