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Top 5 Best Cordless Phones with Long Battery Life 2014 - liGo
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What was used to power early telephone systems, before electricity was widely available? I assume batteries, but were they required for each handset, or only at the central switchboard? - Quora
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Uniden D1780-4 With Additional Battery DECT 6.0 Cordless Phone w/ 3 Extra Handsets - Overstock - 33587799