To urgently get the attention of a person or a group, send a chime. Select the chime icon on the right side of the text box in any chat (Figure 1):
Figure 1 Chime
Note: Selecting to send a chime will show a confirmation screen before it is sent, except in direct chats.
After a chime is received, the recipient hears an audible chime sound, sees a message in the chat and if enabled, receives a notification in the notification center as well as a desktop notification (Figure 2):
Figure 2 Notification
Note: A chime can only be sent to a chat with 500 or fewer members.