Shoutbox

DrPizza, you should advise your friends to upgrade to the same version and then they won't have the option to "Send Webcam" and will instead just send Video Calls, which you will get a notification of.

You aren't "forced" to use video calls, if you don't wish to send your webcam and just wish to be able to see theirs, then either disable your webcam in the Audio Video Wizard, or unplug it from your computer.  Then you can have a one-sided webcam chat (with the added benefit of audio), so technically it's even better than it was before