No upgrade needed chat room
If you later enable the chat room, users can search for messages that were posted before the chat room was disabled.For information about configuring chat room history, see Manage categories in Persistent Chat Server in Skype for Business Server 2015.Before you attempt to manage chat rooms, be sure to read Persistent chat categories, chat rooms, and user roles in Skype for Business Server 2015 and Manage categories in Persistent Chat Server in Skype for Business Server 2015.Note Persistent chat is available in Skype for Business Server 2015 but is no longer supported in Skype for Business Server 2019. For more information, see Getting started with your Microsoft Teams upgrade.To receive only new messages, set Subscribing implicitly joins a room if you aren’t already a member.Subscribing to the same room twice will cause the existing subscription to be cancelled and replaced by the new one.
Summary: Learn how to manage Persistent Chat Server chat rooms in Skype for Business Server 2015.
When a chat room is disabled, all members are immediately disconnected from the room.
After a chat room is disabled, users cannot rejoin it or find it in chat room searches.
You can configure the following parameters for chat rooms: You can create a new room by using the New-Cs Persistent Chat Room cmdlet.
For example, the following command creates a new chat room named ITChat Room on the pool atl-cs-001.