Touch-a-Matic 12 ~ 1975 Pacific Northwest Bell

more at http://quickfound.net/

Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied.

The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original).

https://en.wikipedia.org/wiki/Auto_dialer

Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/

An automatic dialer (also spelled auto dialer, auto-dialer, and autodialer) is an electronic device or software that automatically dials telephone numbers. Once the call has been answered, the autodialer either plays a recorded message or connects the call to a live person.

When an autodialer plays a pre-recorded message, it is often called voice broadcasting, or robocalling. Some voice broadcasting messages ask the person who answers to press a button on their phone keypad, such as in opinion polls in which recipients are asked to press one digit if they support one side of an issue, or another digit if they support the other side. This type of call is often called outbound interactive voice response.

When an autodialer connects an answered call to a live agent, it is often called a predictive dialer or power dialer. A predictive dialer uses real-time analysis to determine the optimal time to dial more numbers, whereas a power dialer simply dials a pre-set number of lines when an agent finishes the previous call...

https://en.wikipedia.org/wiki/Pacific_Northwest_Bell

Pacific Northwest Bell Telephone Company was an AT&T majority-owned Bell System company that provided local telecommunications services in Oregon, Washington, and northern Idaho. Pacific Northwest Bell Telephone Company was formed on July 1, 1961 when it was spun off from the Pacific Telephone and Telegraph Company. On January 1, 1984, Pacific Northwest Bell was split from AT&T as ordered in the settlement of United States v. AT&T and became a subsidiary of the newly formed Regional Bell Operating Company U S WEST, Inc. Pacific Northwest Bell became defunct when U S WEST consolidated its three main subsidiaries, forming U S WEST Communications, Inc. on January 1, 1991. U S WEST merged with Qwest Communications International Inc. in 2000, and the US WEST brand was replaced by the Qwest brand. Qwest Communications merged with Louisiana-based CenturyLink in 2011, and the Qwest brand was replaced by the CenturyLink brand...