Artifact Details

Title

Electronic switching systems no. 1 : arranged with 2-wire features

Catalog Number

102774938

Type

Document

Description

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

1970-1971

Publisher

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

Category

Program Listing

Collection Title

Al Kossow collection

Credit

Gift of Al Kossow

Lot Number

X6512.2012