diff --git a/src/blackcore/context/contextaudio.cpp b/src/blackcore/context/contextaudio.cpp
index dbb4b9cbd..b18810a65 100644
--- a/src/blackcore/context/contextaudio.cpp
+++ b/src/blackcore/context/contextaudio.cpp
@@ -123,7 +123,7 @@ namespace BlackCore
             return m_voiceClient->isEnabledComUnit(comUnit);
         }
 
-        bool IContextAudio::isTransmittingdComUnit(CComSystem::ComUnit comUnit) const
+        bool IContextAudio::isTransmittingComUnit(CComSystem::ComUnit comUnit) const
         {
             return m_voiceClient->isTransmittingdComUnit(comUnit);
         }
diff --git a/src/blackcore/context/contextaudio.h b/src/blackcore/context/contextaudio.h
index f78dffc2d..ab4f2e063 100644
--- a/src/blackcore/context/contextaudio.h
+++ b/src/blackcore/context/contextaudio.h
@@ -142,8 +142,11 @@ namespace BlackCore
             //! Audio runs where
             const BlackMisc::CIdentifier &audioRunsWhere() const;
 
+            //! Is COM unit enabled?
             bool isEnabledComUnit(BlackMisc::Aviation::CComSystem::ComUnit comUnit) const;
-            bool isTransmittingdComUnit(BlackMisc::Aviation::CComSystem::ComUnit comUnit) const;
+
+            //! Is COM unit transmitting?
+            bool isTransmittingComUnit(BlackMisc::Aviation::CComSystem::ComUnit comUnit) const;
 
             // -------- parts which can run in core and GUI, referring to local voice client ------------
 
@@ -171,6 +174,7 @@ namespace BlackCore
             void outputVolumePeakVU(double value);
             //! @}
 
+            //! Callsigns I receive have changed
             void receivingCallsignsChanged(const BlackCore::Afv::Audio::TransceiverReceivingCallsignsChangedArgs &args);
 
             //! Client updated from own aicraft data
@@ -187,6 +191,7 @@ namespace BlackCore
             //! .unmute                        unmute           BlackCore::Context::CContextAudio
             //! .vol .volume   volume 0..100   set volume       BlackCore::Context::CContextAudio
             //! </pre>
+            //! \copydoc IContext::parseCommandLine
             virtual bool parseCommandLine(const QString &commandLine, const BlackMisc::CIdentifier &originator) override;
 
             //! Register a device on a machine (for core/GUI it will return all known devices on all machines)
diff --git a/src/blackgui/components/audiodevicevolumesetupcomponent.cpp b/src/blackgui/components/audiodevicevolumesetupcomponent.cpp
index 7c4205c5f..4394cec70 100644
--- a/src/blackgui/components/audiodevicevolumesetupcomponent.cpp
+++ b/src/blackgui/components/audiodevicevolumesetupcomponent.cpp
@@ -196,8 +196,8 @@ namespace BlackGui
             const bool com1Enabled = sGui->getIContextAudio()->isEnabledComUnit(CComSystem::Com1);
             const bool com2Enabled = sGui->getIContextAudio()->isEnabledComUnit(CComSystem::Com2);
 
-            const bool com1Tx = com1Enabled && sGui->getIContextAudio()->isTransmittingdComUnit(CComSystem::Com1);
-            const bool com2Tx = com2Enabled && sGui->getIContextAudio()->isTransmittingdComUnit(CComSystem::Com2);
+            const bool com1Tx = com1Enabled && sGui->getIContextAudio()->isTransmittingComUnit(CComSystem::Com1);
+            const bool com2Tx = com2Enabled && sGui->getIContextAudio()->isTransmittingComUnit(CComSystem::Com2);
 
             // we do not have receiving
             const bool com1Rx = com1Enabled;