IM+ does not allow video/voice option in skype mode. Dont bother with all the "fixes" people suggest either. I just spent two hours following all the suggestions and nothing works. just wiped my chromebook, Taking it back to the store tomorrow. Chromebook is definitely a superior product for web browsing and surfing, but when I deploy to Iraq/Afghanistan/Syria/North Africa/Asia or wherever else the U.S. gov't decides to send me, I can't take the chance Microsoft (owner of Skype) is going to change something and I no longer have contact with my family. Skype will be the sole source of communication in those environments.
Skype/Microsoft Devs: you are seriously pissing off a lot of people. If I could convince the rest of my family to get chromebooks and could teach my 80 yearold grandfather and my mother-in-laws friends a completely new system, I would drop MS in a heart beat!!