How a rotary dial works

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Uploaded by on Mar 6, 2009

In the old days, the line was directly broken to dial a call. Up until the breakup of the Bell System, touch-tone service was optional.

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Science & Technology

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Uploader Comments (junker15)

  • hold it still!

    

  • @solocraftvs Yeah, I probably should have used my tripod on this one...

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  • This is really cool. Thanks.

  • This is a great video, thank you for posting it.

  • it's a very cleaver design. thanks for posting

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