I never worked for the Bell System, so I can't talk about BSPs.

I did work for GTE and their GTEPs were updated as needed. Every once in a while one of the "Big Books" ( a manual the size of an old Manhattan White Pages and printed on onionskin) would be updated. The Big Books covered things like "Cable Placing" or "CO Installation" or "Key Systems". Otherwise individual docs covering a particular system or task (printed on regular paper, prepunched for a 3 hole binder) were sent out when updated. You could make yourself a book of just the stuff you needed. Copies were always available for the asking.

Sam

Last edited by Silversam; 01/15/21 07:55 AM.

"Where are we going and why are we in this hand basket?"