Are you aware that you can create magnificent 360 degree images using your iphone pana mode in Facebook? The feature appeared a month or two ago and as you move your iphone in space you can explore the image on your Facebook page as if you are there. Cool, uh?
For more details check out this link – great to use with your VR set as well!
Also Messenger includes audio and video now which appears to be really good as well. I connected in the states with my son in Australia using it.