[BC] Origin of acronym QKT

[DHultsman5@aol.com]

In a message dated 2/25/06 1:56:15 P.M. Central Standard Time,  
mark3xy at gmail.com writes:

Wasn't  QKT the Western Electric designation for their basic voice coupler,
the  thing you were supposed to order back in the day when mere mortals
weren't  allowed to connect "foreign equipment" to telephone lines?

I figured  this was some random Bell System part number, similar to
KS-whatever, but  if there's a meaning behind it, I would be interested in
learning  more.

Mark



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I believe that the "QKT"  is the USOC designation for the Bell Labs  Spec'd  
30-A Coupler.
 
Two and three letter USOC codes were used for specifying billing on  
equipment to phone customers.  
 
I have forgotten what USOC is?  Some phone person can probably tell  us.
 
United States Operating Companies?
 
Dave