Dear Experts:
We are in process of implementing on-premise exchange enterprise email server as we cannot use could email services.
We have SQL standard as database server on separate windows server and we have windows Active Directory system, we have additional windows server license of 2019 , we would like to setup Microsoft teams for internal chatting please suggest is there any license subscription to be procured and is it possible to setup on-premise teams for internal chatting, please help to understand prerequisite in terms of software to be procured, please help to understand this, thanks in advance.