[GreenKeys] Where was the "Telegraph" in AT&T?

[Duncan Brown]

You have to be careful with the word "telegraph".  It has been used 
generically for both hand sent Morse code and for teletypewriters.  
Teletype Corp used the term "Printing Telegraph" for their machines up 
into the 1950s.  The military used the "/TG" suffix for both Morse 
telegraph and teletypewriter equipment.

In 1930, AT&T wanted to set up "Teletypewriter Exchanges" (TWX), just 
like they had for telephones, so that businesses could communicate over 
TTYs.  AT&T bought the Teletype Corp. at that time so that they could 
control the source of machines and lease out the service.  In Europe, a 
similar system, known as TELEX, was also set up in the early 1930s.  
These systems were the original email service.

Have fun,

Duncan
K2OEQ





On 2/2/2025 6:32 PM, Bruce Gentry via GreenKeys wrote:
>
> For a few weeks I have been viewing YouTube videos of the Connections 
> Museum in Seattle, Wa. They are a living museum of telephone gear, 
> especially the central office switching systems. They also have a 
> display of operational Teletypes. However, how did one send a telegram 
> via AT&T? Were the machines for communications within the telephone 
> network offices only? For decades I have enjoyed the machines, but 
> aside from Western Union and private networks on railroads, know very 
> little else about how AT&T carried messages and who they carried them 
> for.
>
>    Bruce Gentry, KA2IVY
>
>
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