Device is not calibrated message, with Jabra Pro headset

When using a Jabra Pro headset sometimes a message is shown even when the calibration wizard seems to be working successfully.

The logging shows tje following:

INFO RSDK.Core - SetAudioSource entering...; [mixer=[LocalMixerData=[DeviceName=Microfoon (2- Jabra PRO 930)]; [Mute=True]; [Volume=90%]]; [RemoteMixerData=Unavailable]]
ERROR RSDK.Core - RSDKAudioSourceException thrown: recording device is muted; [Name=2- Jabra PRO 930]; [Description=Microfoon]
ERROR RSDK.Core - recording device is muted; [Name=2- Jabra PRO 930]; [Description=Microfoon]

The user will see the following message on screen:

If this is the case check to see if the microphone is muted at:

  control panel-> sound->recording devices. In the properties of the recording device check the level tab.