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Ioannis is responsible for advancing the synergy in the areas of IMS Strategy, Development & Testing aiming at harmonization and optimization of relevant technologies and services (e.g. VoLTE/VoWiFi) across the Huawei IMS based NatCos, under the DT wide TSSC Framework. He originally joined OTE in 1996 as a member of mobile strategy, business planning and subsequently Cosmote core planning team. Ascending through management positions in Cosmote, first leading the Core Engineering Section till 2003 and then deploying and implementing the International Technical Management Framework for the Cosmote Group of companies (South Balkans) as head of the relevant Sub-Department, he has led and participated in a variety of technology and business development projects collaborating with cross-NatCo management teams. In 2013 he was the Technical responsible for the DT EU RCSe Programme and in 2014 he assumed his current position as Head of the Huawei Hub for the DT IMS TSSC. During 2015 he has led an international technology team for specifying, evaluating and concept-proving virtualized VoLTE/VoWiFi solutions for DT EU NatCos.