Cisco 1800 Series Integrated Services Routers - Retirement Notification The Cisco 1800 Series Integrated Services Routers has been retired and is no longer supported. End-of-Sale Date: 2014-05-07 End-of-Support Date: 2023-10-31 Cisco's End-of-Life Policy You can view a listing of available Branch Routers offerings that best meet your specific needs If you want support information for the Cisco 180