Yes. Ooma's VoIP phone service offers the 911 functionality you'd expect from a landline phone. However, it's important to note that you must provide a valid address within your country of purchase when you set up your device, and update your address with the device if you move to a new home or office. With Ooma's 911 service, emergency calls are routed to your local dispatcher instead of a national call center, and Ooma automatically relays your street address information to emergency services.