communications
Thanks Yaw String, Justme69 & Slotpolice for your inputs.
Wouldn't be "normal" the IB pilot try to call AF447 on open freq to advise that control is trying to reach him? Specially that control began its calls at almost the same moment AF "disapeared" from his TCAS display.
Would be important to know more about this a/c that was ahead of AF447, if he heard control calling AF 447, if he heard Iberia's deviation report...