Self-Hosted alternative to Slack for Team Chat

SLACK , the term “Slack” has reached a leading position in team collaboration industries, as it simplifies the way of internal communication within teams through Direct messages, Private and Public Channels.

Helps to connect remote teams

Reduces the time of conversation

Archived records of Chat Logs

But all the above can be done on-line through their Slack hosted server only.

If your company has a policy that all internal communications should be with-in your server/network, then Slack may not be your solution.