I just love to watch trains and explore the history of Telephone Exchanges.
Wednesday, October 5, 2016
Robbie Cain: The way that telephone step bystep tones should be...
Robbie Cain: The way that telephone step bystep tones should be...
: This is the way that telephone step by step tones should be like for all phone companies in the future. First dial tones. Then the reorde...
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