Ah it's Good to Know there's a Hatch in the Ceiling! Not Surprised, -but Never Really Thot about that either. Thanks for Mentioning that they're Not Entirely Airtight either.
As to Emergency Phones or Intercom, -Good and Great!  I've Long Known about them. But as I say in another Post in this Thread, -It's been my Experience in some Older Elevators and Buildings around here, in the Berg, -That such Phones have Actually Been Cut Out!  Be it by Building Personnel or by Outside Vandals!  I Can Pretty Surely Venture that there's a Law Against This!  But my Town and Area Typically Does such Stuff!  I Know Not What Percentage of Vators in Other Areas are Like This!  Keep this Caution in Mind!, -and Check Your's Out!  But my Area Sure Gots it's Few Plus!  [color:"black"]  [/color]  [email]cliff[/email]   
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"No Substitute for Victory!"and"You Can't be a Beacon if your Light Don't Shine!"-Gen. Douglass MacArthur and Donna Fargo.