ATHENS, Greece – October 13, 2011 – Hellenic Telecommunications Organization SA (ASE: HTO, OTC MARKET:HLTOY), the Greek full-service telecommunications provider, announces that it will release its 2011 third quarter results under IFRS on Thursday, November 10, 2011.

OTE's management will host a conference call at 17:00 (GREECE) / 16:00 (CONTINENT) / 15:00 (UK) /10:00 (EASTERN US) following the release, to review the results.

Details regarding conference call dial-in and replay numbers as well as the live audio webcast of the conference call, following the results release, will follow.