well, also for the record, the only other public conference call the company has ever done was on March 4th, 2011 (one two three).
its content was announced during a halt, along with a NR a day and a half beforehand, during market hours.
although this time around, the CC on the 30th is after market close, so that might avoid the need to halt, or to issue news prior.
GLAL,
R.