diff --git a/src/blackcore/context/contextaudioimpl.cpp b/src/blackcore/context/contextaudioimpl.cpp
index 3ccde9e07..259173a4a 100644
--- a/src/blackcore/context/contextaudioimpl.cpp
+++ b/src/blackcore/context/contextaudioimpl.cpp
@@ -713,6 +713,22 @@ namespace BlackCore
             this->setVoiceOutputVolume(v);
         }
 
+        CComSystem CContextAudio::getOwnComSystem(CComSystem::ComUnit unit) const
+        {
+            if (!this->getIContextOwnAircraft())
+            {
+                // context not available
+                switch (unit)
+                {
+                case CComSystem::Com1: return CComSystem::getCom1System(122.800, 122.800);
+                case CComSystem::Com2: return CComSystem::getCom2System(122.800, 122.800);
+                default: break;
+                }
+                return CComSystem::getCom1System(122.800, 122.800);
+            }
+            return this->getIContextOwnAircraft()->getOwnComSystem(unit);
+        }
+
         QSharedPointer<IVoiceChannel> CContextAudio::getVoiceChannelBy(const CVoiceRoom &voiceRoom)
         {
             QSharedPointer<IVoiceChannel> voiceChannel;
diff --git a/src/blackcore/context/contextaudioimpl.h b/src/blackcore/context/contextaudioimpl.h
index 8da052d14..be605d74f 100644
--- a/src/blackcore/context/contextaudioimpl.h
+++ b/src/blackcore/context/contextaudioimpl.h
@@ -167,6 +167,12 @@ namespace BlackCore
             void audioDecreaseVolume(bool enabled);
             //! @}
 
+            //! Get current COM unit from cockpit
+            //! \remark cross context
+            //! @{
+            BlackMisc::Aviation::CComSystem getOwnComSystem(BlackMisc::Aviation::CComSystem::ComUnit unit) const;
+            //! @}
+
             //! Voice channel by room
             QSharedPointer<IVoiceChannel> getVoiceChannelBy(const BlackMisc::Audio::CVoiceRoom &voiceRoom);