Here is the new push-button office telephone…
the CALL director
for the person who makes a lot of calls, or takes a lot of calls This is the most advanced and flexible telephone ever offered to business! More than a new product, the Call Director is a new concept in telephone design and service.
It provides fast, easy handling of outside and interoffice calls plus special features to fit your communications needs. By pushing a button you can—
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If they had already perfected explosion-proof telephones in 1935, why can’t I use my cell phone at the gas station? Has this miraculous technology been lost?
SAFETY PHONE GUARDS AGAINST EXPLOSIONS
A new type of explosion-proof telephone, exhibited in Chicago, is a recent addition to the roster of curious safety appliances developed especially for use in industries where dust, gunpowder, or inflammable gases present the constant hazard of a blast. Not only does the construction of the instrument guard against the possibility of an electrical spark igniting any combustible material in the surrounding air, but even the mechanical working parts have been designed particularly with a view to reducing friction so that a spark cannot be produced.
SUPER-ROBOT SPEEDS PHONED TELEGRAMS
When a New Yorker calls one of the city’s principal telegraph companies on the phone to send a wire, he now sets in motion a super-robot so swift that a stopwatch often cannot time it.
Within the short space of one second, on the average, he hears the answering voice of one of 110 girls, who sit at desks as shown in photo above. This is made possible by the “automatic call distributor, ” called one of the most important inventions in recent years.
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If you missed it, check out the first post of the series: Fax Machines
PHONE CALLS ARE ANSWERED BY MACHINE (May, 1924)
I’d seen a lot of answering machines in later magazines but I was pretty surprised to see this one in a 1924 Popular Mechanics. It even features a dial indicator that shows how many calls the owner has missed.

Device Answers Phone and Tells Caller When You Will Return to Office (Aug, 1932)
This later product called the “Ansophone” is a an answering machine in the literal sense of the word. It will answer the phone and play a message to the caller, but it doesn’t record any incoming messages.

The Perfect Secretary—a Machine (Apr, 1933)
This gigantic contraption seems to be functionally equivalent to the first machine above. You’d think after almost a decade that the technology would allow a smaller device, not a bigger one. I’m guessing that it probably worked a lot better though.

Making a Telephone Talk Through Loudspeaker
“WILL you speak a little louder please?” That request is unnecessary for users of a new telephone loudspeaker invented by H.O. Rugh, of Chicago, Ill. The installation consists of a horn loudspeaker operating from the telephone receiver through an audio amplifier similar to amplifiers used in radio. The latter is supplied with current from the house lighting circuit and is contained in a small cabinet upon which the telephone instrument rests.
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Directory Dials the Phone
A NEW desk telephone directory not only finds the number you want but actually dials it for you. All you have to do is slide the knob on the face of the device, called an Auto Dial, to the name you want, then press the small lever at the foot of the machine. When the lever returns to its normal position, in five or six seconds, your call is made and you pick up the phone.
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