ATC Watcher: Many thanks for some of your comments regarding pilot actions and emergency descents. There was a discussion topic some weeks ago. Many different opinions about when to inform ATC of your E.D. before executing it or before; TA only on TCAS; turning L or R etc. Sadly little ATC input came into that topic, but now you have expressed your thoughts. We wonder if ATC has an SOP for E.D's as do the pilots? Trouble is there did not seem to be a standard SOP amongst the airlines. I hear ICAO is looking into it. About time.