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History

When moving the telephone exchange is easier than moving the lines within it…

Relocating vast numbers of subscriber lines is something to be avoided. In 1929 Indiana Bell realized they needed a larger telephone exchange (“CO” to use the US term) to meet growing demand, and while there was vacant land around the current building, it wasn’t large enough to build on with the current building slap-dab in […]

Categories
History

The Anti-Digit Dialing League

The strange history and triumphs of a group formed to protest the removal of letters from the dialing plan.

Categories
History

How AT&T tried (and failed) at mmWave Deployments the 1960s before 5G

Lessons in mmWave from the 1960s.