Hey! I am trying to find out which of these is a better solution to communicate with clients. 1. Skype for business 2. Google hangouts 3. Slack I am not looking for VoIP Hardphones now. I want to finalize one of the above softwares. I have read good and bad about all three of these online, which confuses me even more. But, I feel benefits of Skype for business outweigh other two slightly. I don't know for sure, which is why I need advice from someone who knows better. Can someone tell more about it? Thanks in advance.