Avanti Communications Group plc announced the appointment of John Slámecka as Non-Executive Director of the company with effect from 1 December 2018. John currently leads the Global Account Solutions-EMEA team for AT&T as region president. In addition to the above directorate change, the Company announced that Andy Green, Non-Executive Director of the company, will step down from the Board on 31 January 2019. The company also announces that Alan Harper, Non-Executive Director, has been appointed as Deputy Chairman and will replace Andy Green as Senior Independent Director with effect from 1 February 2019.