Facts About Telephones Revealed

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To learn more details on the cookies we use or how to vary your settings, remember to see our Cookie Coverage. OK Several early manual telephones had an attached hand-cranked magneto that created an alternating recent (AC) at fifty–a hundred V for signaling to ring the bells of other telephones https://peucher.club/10475633293851099924/ecouteurs-bluetooth-sans-fil.html


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