I think you are referring to Cisco Spark. It sure looks like a copy of Slack, right down to the logo. Then again, there seems to be a market for "Enterprise" versions of popular web apps. (I too am biased here)
Yes, that was it. When I talked to one of the guys about the service, it was filled with a lot of "well, it doesn't do that, yet"'s. But they all seemed to think that this product would replace all other existing collaboration platforms, including WebEx/Skype for Business. Maybe if Cisco wasn't running it, perhaps.
