Scroll down to see how to do this in Symphony 1.5
In Symphony 2.0:
Turn off notifications for a specific chat by muting it. Hover over a chat and click the bell icon (figure 1).
Figure 1 Click the bell icon to mute a chat
Click the same icon to unmute your chat. You can also turn off all notifications by switching off Allow notifications at the top of the notification center (figure 2).
Figure 2 Switch off Allow notifications to turn off notifications
Messages will appear in your chat list, but you won’t get alerts or desktop notifications. Switch Allow notifications to turn your notifications back on.
In Symphony 1.5:
Disable notifications and alerts for a given chatroom to reduce the noise while maintaining visibility into different chatrooms.
You can mute a chat by:
1) Hover over a chat on left panel and click ellipsis for options (Figure 1)
Figure 1. Hover on a chat on the left panel and click on the Ellipsis for options
2) Select "Mute" to disable notifications for the chat (Figure 2)
Figure 2. Select Mute option to disable notifications