when wer two digit phone numbers used?

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  • 1 month ago

    When phones were invented.

  • 1 month ago

    ................

  • 1 month ago

    When there were fewer than 100 unique telephone lines in the town.

  • 1 month ago

    With the introduction of speed dialing, limit, 99 numbers.

    Early telephone was a party line, a ringer to the operator that could connect to other exchanges and operators.

    That got replaced with 7 digit dialing and automated switching at the local exchange.

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  • John
    Lv 7
    1 month ago

    Maybe in the lab before phones went into production.

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