Heeeey so, if we're talking about potential alternatives here? I need to just leave this here and encourage anyone looking for something better to take a look: https://www.meetspaceapp.com

Full disclaimer: I'm a friend of the founder, however I'm a paying customer due to the fact that

1. It's worked wonders with my clients and 2. It's so much better than hangouts or skype.

Compared to the big boys it may be considered a bit spartan but for what it does, it does it extraordinarily well.