This is a pretty interesting app to have conversations with friends.

Business calls, I've had a problem with video. It's often too cumbersome and gives too much info about the visual aspect of myself when it's not necessary and when I don't want it to happen. (e.g., getting on a call with a stranger or clients.) Using the "voice" call, I won't worry over washing my face at 9am in the morning.

Which is the reason I created http://voicechatapi.com (shameless plug)