Audio Settings for the VoIP client in IGEL OS

You can change the audio settings of the VoIP client.

Menu path: Setup > Sessions > VoIP Client > Audio

Recommendation: Configure the settings Device for ringtone, Device for audio playback and Device for audio recording in the VoIP client. All available audio devices of the thin client are shown in the VoIP client.

To configure the audio devices in the VoIP client, proceed as follows:

1. In the IGEL setup, ensure that the option Save configuration changes made in the application is enabled under Sessions > VoIP Client > Preferences.

2. Start the VoIP client.

3. Configure your desired settings in the VoIP client under Edit > Preferences > Audio > Devices.

4. To save your settings, close the VoIP client window, right-click on

   

   in the system tray and select Close.

The changes will be saved in the IGEL setup once the VoIP client is terminated.
Settings in the setup:

• Sound event output device: Specifies which audio device is used for the ringtone.

  

  It is recommended that you select the audio device that is connected to the thin client's built-in loudspeaker.

  
  

• Audio output device: Specifies which audio device is used for playback. Example: the audio device that is connected to the loudspeakers of the headset.

• Audio input device: Specifies which audio device is used for recording. Example: the audio device that is connected to the microphone of the headset.

• Enable silence detection: If this option is enabled, audio transmission will be suppressed in the absence of voice activity. This helps to save bandwidth.

  

  Voice activity detection can reduce the voice quality.

  
  

• Enable echo cancelation: If this option is enabled, the VoIP client will suppress echoes of your own voice.

• Maximum jitter buffer (in milliseconds): The jitter buffer improves voice quality by compensating for delay variations when transmitting voice packets. The VoIP client continuously measures delay variations and automatically adjusts the buffer size. The bigger the delay variations are, the bigger the jitter buffer will be set. (Default: 500)

  

  A bigger jitter buffer results in greater latency.