File:Bell telephone magazine (1922) (14756059322).jpg

Identifier: belltelephonemag08amerrich (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

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these 7,700,000,000 station-to-station day rates,now necessary for our business, were to be determinedby the old method, the total cost would amount to sev-eral million dollars and the time required with, say a1,000 clerks on the job, would be several years. An example of modern preparation and issuing ofrates was given in connection with the change in tollrates made effective February 1, 1929. This changeaffected many of the toll rates of all the 88,000 pointsin the Bell System. Work on the new rates was startedabout October 15, 1928, and the rates were completedand in the hands of the operators ready for use Feb-ruary 1, 1929, the total time required being about SJmonths. There were over the country possibly 500people on the assignment, only a portion of whomworked the entire 3J months and the total cost wasprobably not over $200,000. This was made possibleprincipally through the use of a group or block systemin computing and setting up the new rates. (107) Bell Telephone Quarterly
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(108) Seven Billion Toll Rates The block system used by the Bell System and Con-necting Companies has been laid out to include the en-tire continent. The blocks, seven miles square, and thesections (a group of 25 blocks), 35 miles square, havebeen plotted on maps obtained from the United StatesGovernment at Washington, the Canadian Governmentat Ottawa, and the Mexican Government at MexicoCity. A suitable nmubering scheme is used to desig-nate each block and section of the system and for ratepurposes, each city is assigned the block and sectionnumber of the particular block and section in whichit is located. Toll rates under this system are determined by threemethods. Up to 40 miles rates are based on the directair line distance between the points as measured onthe government maps. Between 40 and approximately350 miles rates are based on the computed air line dis-tance between the centers of the seven-mile blocks andall points in a block take the same block rates. Fi-nally, for distanc

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