When I sign on to Gmail, there's no longer a way to acces the telephone feature. The word "chat" has disappeared! What can I do to access Gmail Chat again?
First, make sure chat is on. For this, go to Settings → Chat → Select Chat on → Click Save Changes at the bottom of the page. Second, if you are using the "new" Gmail, make sure the chat widget is visible. There is a small "square bubble" in the bottom-left corner of the Gmail window, that hides/unhides the widget (see photo below—in "hide" state)—make sure it's unhidden.