When initiating or receiving a Facebook Messenger video call on an I-Series you should get prompted to choose which camera to use. The prompt asks, "Would you like to share your camera and microphone with www.facebook.com?"
- Under Camera to Share: drop down the list box and choose Webcam 2M.
- Leave the Microphone to share as Microphone (Realtek High Definition Audio) if you choose to use the built in I-Series microphone.
- Drop down the Share Selected Devices list and choose Always Share. Then the video call will attempt to call your friend.