Answer Live Chats in Microsoft Teams

There are 2 ways to answer live chats right in teams.

Option 1: Reply to a chat right within your team conversation.

Once you add your live chat code snippet to your website, you can send a new live chat request to your team. You can also send a test chat from the Preview Chat page in your Chat Settings. Once a chat is started from the website visitor side, you'll see a live chat request notification come to your team channel similar to below:
Microsoft Teams Live Chat
Click on the 'Accept Chat' button to accept the chat right in your conversation. 
Then reply to the conversation making sure to mention '@live chat' in your reply so the messages are sent to our bot. You will have to make sure to mention every reply.
Mention Live Chat in your Teams Reply

Option 2: Open the chat console to chat from a dedicated chat page.

Once you add your live chat code snippet to your website, you can send a new live chat request to your team. You can also send a test chat from the Preview Chat page in your Chat Settings.
MS Teams Answer Live Chat
Click on the 'Open Chat Console' button in the chat request to open the live chat console page. 
Here you'll see all active Live Chats and can open and view each chat separately. Simply enter text in the chat text area to begin your chat.
Microsoft Teams Live Chat Console