Summary: RingCentral homepage replaced by 404 error page

Why It Matters: The main landing page for the product is currently broken. This creates a poor experience for potential customers and suggests a technical issue or a failed site update.

What Changed:

• The main marketing content was replaced with a "404 Error - Page not found" message.
• The headline "The all-in-one AI communications platform" is gone.
• Customer success stories and the Gartner Magic Quadrant report are no longer visible.
• The page now shows a list of navigation links and product categories instead of the standard homepage layout.