HLTOF - Hellenic Telecommunications Organization S.A. 2021 Q2 - Results - Earnings Call Presentation August, 05 2021 03:32 PM Hellenic Telecommunications Organization S.A. The following slide deck was published by Hellenic Telecommunications Organization S.A. in conjunction with their 2021 Q2 earnings call. For further details see: Hellenic Telecommunications Organization S.A. 2021 Q2 - Results - Earnings Call Presentation