Whats the difference between normal telephon..

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What's the difference between normal telephones and hands-free speakerphones, how a speakerphone works? | #explosion proof telephone # weatherproof telephone # jail phone and other vandal resistant public phone manufacturer

What's the difference between normal telephones and hands-free speakerphones, how a speakerphone works?

When you’re out and about, doing things like grocery shopping or going to the doctor, you probably use hands-free speakerphones all the time.

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2 yrs - Translate

What's the difference between normal telephones and hands-free speakerphones, how a speakerphone works?

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