BT expects the vast majority of customer premises equipment (CPE) used to access services today will work normally on 21CN. A comprehensive and rigorous testing programme continues. To view the results to date visit: http://www.switchedonuk.org/home/how/compatibility/
Please note: BT's testing of CPE does not constitute a guarantee that apparatus will work on BT's 21CN network, or an endorsement of any apparatus by BT.