A simple Sound Notifications ("Ding") would be really useful.
Sometimes you are focused on work and don´t notice a chat comment that CAN be urgent to pay attention...
I will send this over to our Support Team, as we do have sound notifications. This could potentially be a bug.
Nice post & informative :) Also found a couple of best practices & Tips on using Slack here: http://fastandclean.org/how-to-use-slack/
Customer support service by UserEcho