Select the available audio device in the combobox.

Input Device

Select here your Microphone
(generally an Headset or Handset)

Output Device

Select here your speakers
(generally Headset or Handset)

Ringing device

Is an optional device used to play the incoming ring tone
(generally external speakers)

Ring on both Devices

Enable play ring tone on Both Output and Ringing device.

Mute ring Device

This option mute the ringing device.