3.9. Chat 
You can chat with an individual contact or with a group of contacts.
‣ Parent topic: Section 3. WebClient Features
Child topics:
‣ Section 3.9.1. Displaying your Chat History
‣ Section 3.9.2. Pin a Chat Conversation
‣ Section 3.9.3. How to Add Users to a Chat
‣ Section 3.9.4. Adding an Attachment to a Chat Message
‣ Section 3.9.5. Deleting a Chat Message
‣ Section 3.9.6. Leaving a Chat
‣ Section 3.9.7. Starting and using the chat in a one-on-one call
‣ Section 3.9.8. Starting, using and adding to chat during a conference call