File:Bell telephone magazine (1922) (14752713294).jpg

Identifier: belltelephonemag00vol2930amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
tedPromptly. New types of equipment are con-stantly being designed, to keep pacevith the development and growth otrommunication requirements and toneet the different service needs ofnany customers. A new console type of manualswitchboard is now being providedfor small installations of one or twopositions. Streamlined in appearance and equipped with removable outercasings which may be finished in dif-ferent colors to harmonize with theinterior of the customers office, itembodies main new operating, equip-ment, and maintenance features.These include additional bulletin andwriting space, improved ringing andtalking keys, and automatic groupingot positions for light-hour operation.There are also self-contained cordand trunk units which may easily beadded to, removed, or relocated, thusmaking possible a close adjustment ofthe equipment to the load require-ments—number and kinds of calls—without interference to the service.Two new PBX switchboards have 4o Bell Telepho)ie Magazine SPRINC
Text Appearing After Image:
This still is from The Invisible Receptionist a motion picture about the work of PBX attendants which was made particularly for showing at group meetings and other suitable occasions been made available for use at largemanual and dial installations. Oneembodies special operating and serv-ice features such as automaticallystarted machine ringing on calls totelephones it serves directly; audibleflashing recall, wherebv a singlemovement of the switch hook to re-call the attendant causes the super-visory lamp to flash intermittentlyand an audible signal to sound untilthe attendant answers or the callerhangs up; and idle trunk indicating.The other is designed for use at in-stallations where the customer doesnot require all these features. How-ever, it is arranged for idle trunk in-dicating, and has an optional arrange-ment for audible flashing recall. One package-type dial privatebranch exchange is new to the service.It is designed to facilitate the engi-neering and installation of small d

Note About Images