Educational Resources
In 1929, and still today, some of these floors house various types of telephone equipment. When the building was new, the second floor held the step switches for 40,000 customers in downtown Denver. (Click here for a demonstration of this type of switch in action.) This floor had to have a specially reinforced floor and a 16-foot ceiling to house the 11-foot frames of the switching equipment, along with space above for cables. Over 2,000 tons of equipment sat on this floor.

The fourth floor was primarily occupied by the "long lines" (long distance) department of AT&T. About two hundred long distance circuits came into this floor; each had to be tested, and if found in trouble, the test man would call an equipment man, lineman or cable maintenance man and work with him to clear the trouble in the shortest amount of time.

Three national radio program supply networks were routed here and were closely observed to prevent interruption and keep quality and volume at their best. There were also about one hundred "special contracts" utilizing "telephone typewriter" and Morse routed and monitored on this floor. These contracts were set up with "the various press associations, the government and commercial firms such as brokers, packers and manufacturers."

Today, highly efficient compact and reliable electronic switches handle million of calls daily.

Various supervisors' offices were located on the sixth floor, along with the official company telegraph office and its three operators. Part of the Engineering Department was located on the eighth floor, as well as the Western Electric Company Installation Department, whose function it was to "install central office equipment in all the territory in which the Mountain States Company operates."

The tenth floor held various offices and departments.

Continue the building tour on the Odd Floors.

Front of Exhibit
Building Site History
Local History of Communications
Architecture and Construction
Working in the Palace and Tour
Arapaho and Schooners
Growth of Denver
Skid Row
Building Site Chosen
Smoke Signals
Pony Express
Trains and Telegraphs
Local Phones
The Drawing Board
In Use
14th St Outer
14th St Inner
Curtis St Outer
Curtis St Inner
And More
Main Floor
Even Floors
Odd Floors
Fourteenth Floor
Fourteenth Floor Museum
Fifteenth Floor

You are currently in the Working in the Palace (& Building Tour) section of the 931 Building exhibit. Please click on the menu items above to move to other parts of the exhibit, or use the menu below to go to other parts of the Telecommunications Virtual Museum.

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