Contact BT Privacy Terms of use Codes of practice Complaints T&C Feedback The BT Corporate Mark is a registered trade mark of British Telecommunications plc. BT Cloud Phone is a trade mark of British Telecommunications plc. ©2015 RingCentral, Inc. All rights reserved. RingCentral and the RingCentral Logo are trade marks of RingCentral Inc British Telecommunications plc Registered office: 81 Newgate Street London EC1A 7AJ. Registered in England No. 1800000.