Title
Electronic switching systems no. 1 : arranged with 2-wire featuresCatalog Number
102774942Type
DocumentDescription
Items in this folder were originally bound. This folder contains multiple program listings. All listings are labeled "AT&TCo SPCS."Includes:
Disconnect programs
Ringing programs
Outgoing call control program
Multifrequency outpulsing control program
Dial pulse outpulsing control program
Revertive transmitter control program
Panel call indicator outpulsing control program
Date
1971Publisher
Bell Telephone Laboratories, Inc.Identifying Numbers
| Document number | PR-1A133-14 | Ringing programs |
| Document number | PR-1A134-14 | Disconnect programs |
| Document number | PR-1A135-14 | Outgoing call control program |
| Document number | PR-1A136-14 | Multifrequency outpulsing control program |
| Document number | PR-1A137-14 | Dial pulse outpulsing control program |
| Document number | PR-1A138-14 | Revertive transmitter control program |
| Document number | PR-1A139-14 | Panel call indicator outpulsing control program |