Title
Electronic switching systems no. 1 : arranged with 2-wire featuresCatalog Number
102774938Type
DocumentDescription
Items in this folder were originally bound. This folder contains multiple program listings. All listings are labeled "AT&TCo SPCS."Includes:
Coin programs
Auto. message accounting data accumulation
Permanent signal and partial dial programs
Operator programs - toll sw., rec. compl., disc.
Operator no test program
Operator programs - misc., outgoing to swbd and desks
Date
1970-1971Publisher
Bell Telephone Laboratories, Inc.Identifying Numbers
Document number | PR-1A140-14 | Coin programs |
Document number | PR-1A141-14 | Auto. message accounting data accumulation |
Document number | PR-1A143-12 | Permanent signal and partial dial programs |
Document number | PR-1A146-12 | Operator programs - toll sw., rec. compl., disc. |
Document number | PR-1A147-10 | Operator programs - misc., outgoing to swbd and desks |
Document number | PR-1A148-10 | Operator no test program |