Different options for video calling

摘要

It should be such a simple thing: you're just going to make a video call. If it were a phone call, you'd dial a number and you'd either get through or be directed to voicemail. But with video, there are too many variables. Which service will you use? Which software? Is the other person on your buddy list? Are they online? What if you want more than one person on the call? Do all participants have sufficient bandwidth? What if you want to share a screen? And on and on. You can't 'just' make a video call with a random person without thinking through these things.