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Joined: May 2001
Posts: 322
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OP
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Joined: May 2001
Posts: 322 |
What is needed to make the executive set(550-4500) a full duplex speakerphone? Or is it not possible?
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Joined: Oct 2003
Posts: 172
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Joined: Oct 2003
Posts: 172 |
it is built into that phone. simply hit SPCL & SPKR while on a call. it will calibrate (white noise) then you are good to go.
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