Slack Calls: Now with 100% more video
https://slackhq.com/slack-calls-now-...d98#.2dqpr9su6
Talking face-to-face with your team is just one click away
Since we added voice calling to Slack earlier this year, teams have used the phone icon to make calls across the office and around the world. Now this handy button does even more: one-to-one and group video calling. Just click the phone icon to start a call — like you’ve been doing already — and then use the new camera button within your window to enable video.
Like with voice calling, it’s simple to get your team on a video call. No need to open a separate app, dial in to a meeting, or share invite links. Anyone on your Slack team can call another person directly, and if you’re on one of Slack’s paid plans, your team can make group video calls with up to 15 people.
Video calling also includes the calls emoji response feature, so without having to unmute, you can use a ✋ to ask a question, add a 👍 to show your approval, or 🙇 to thank people for a job well done. These reactions, along with a few others, will display briefly over your video and play a subtle sound.
Prefer to use another app to call your team? You can use Slack to make voice and video calls with third party services like Google Hangouts and Zoom. In fact, you can even customize your call settings to automatically default to the call service of your choice.
Making calls within Slack, whether voice or video, can be helpful at times when a face-to-face conversation is needed, like when you want to give someone feedback or have a one-on-one discussion with a teammate in another office.
Video Calls are rolling out over the next few days and will be available on the latest versions of our Slack for Mac and Slack for Windows desktop apps, as well as Google Chrome. On the move? Users on the mobile apps can still join any ongoing video call, but will be limited to sharing and receiving audio.
This is great, I try to move as many conversations as possible into Slack, and now with video calling also available, it makes it that much more powerful. I really hope they will find a neat way to make Slack accounts on different teams interact, so that you can then ask someone for their Slack instead of their Skype. 
I still have the impressions that the large majority of the industry is on skype rather than on slack. Just came back from AWA and most people have a skype account on their business card whereas nearly no one has their slack account on it.
The last straw is screensharing ... once that is in place, I think I will have no reason at all to use Skype any more for anything.
Skype really was not built for the mobile first era, and as a result, they have really struggled with their legacy code base and users. This is the classic innovator's dilemma. Just as Skype disrupted traditional telephony, Slack is doing the same to Skype.
I am friends with one of the co-founders of Skype ... and even he stopped using Skype awhile ago.
Nobody has their Slack account because nobody can "add you on Slack". It's built to be used internally for companies/teams. That's what I meant in my post.. Once they add the ability to add accounts in general, it will be really good.
Regarding screen sharing, I always found Team Viewer to be one of the, if not THE, best solutions out there because it's so specialized for that, it has many useful features that actually work.
Skype has been a pain for me on mobile til 1.5 years ago, but even now it's nowhere near as good as Slack. Slack has been outperforming Google Hangouts for me for many years.. We tried using that more for team text chat as well, since it should be better than many solutions when it comes to mobile, and it integrates well in the email tab... It was still much worse on mobile than Slack.