[sdoering]

I have no real good recommendation (so I am thankful for all ideas in this thread), but I would not recommend Hangouts and Slack.

We use both in the company I work for and it is a pain in the ass to use. and the image quality isn't really that great.

But both are at least usable.

More important is imho that people know how to use the tools. Give people room to interrupt/ask questions. Make breaks in between your thought units a little bit longer. Because you won't have non-visual signals that someone wants to ask a question. And on the other hand: Give people the chance to bring their thoughts to an end. Don't interrupt premature.

Be more considerate and kind. Go out of your way to compensate for the non-visual signals of communications, that regularly help a lot in f2f situations.