When I was at AT&T back in the late eighties....the rule was always use plenum and they charged a flat rate as well with some exceptions for high celings, very long runs, cinder block walls, etc. Then they charged a frim rate of 64 hour plus parts. We AEs had a guide called "wire made simple" which of course it was anything but.
www.myrandomviews "Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about"
Retired, taking photographs and hoping to fly one of my many kites.
