Setting custom ringtones 

You can customize ringtone for your incoming MiCollab Client notifications by using the custom audio files.
Note: Ensure you are familiar with the audio file formats and advanced configuration before customizing the ringtones.
  1.  Navigate to your system application data folder:
    %APPDATA%\Mitel Networks Corporation\MiCollab\
  2. Create a folder and rename it to custom.
  3. Choose an audio file in .wav or .mp3 file format and rename it to ringtone.wav or ringtone.mp3
  4. Copy this audio file to the below folder path:
    %APPDATA%\Mitel Networks Corporation\MiCollab\custom
If you experience low ringtone volume for MiCollab notifications, use an audio file with higher volume or remove audio ducking in the Client.
Note: By default, the operating system reduces the intensity of an audio stream when a communication stream, such as a phone call or a message is received on the communication device through the computer. This behavior is known as audio ducking.
To remove audio ducking:
  1. Quit the MiCollab Client.
  2. Open the Command Prompt and navigate to the below folder path:
    C:\Programm Files (x86)\Mitel\Micollab
  3. Enter the below command to start the client and turning off audio ducking.
    MiCollab.exe --audioducking=off
    Note: Audio ducking can be enabled using the command MiCollab.exe --audioducking=on

The audio ducking setting is persistent and must be executed only once per user.