$OI S.A.(OIBR.C)$ 美东时间 2013-05-07 11:00 Q1 2013 Oi SA Earnings Conference Call (English)
$OI S.A.(OIBR.C)$ 美东时间 2013-05-07 09:30 Q1 2013 Oi SA Earnings Conference Call (Portuguese)
$OI S.A.(OIBR.C)$ 美东时间 2013-03-21 10:00 Oi SA Extraordinary Shareholder Meeting
$OI S.A.(OIBR.C)$ 美东时间 2013-02-19 10:00 Q4 2012 Oi SA Earnings Conference Call (English)
$OI S.A.(OIBR.C)$ 美东时间 2013-02-19 08:30 Q4 2012 Oi SA Earnings Conference Call (Portuguese)