Question about NEC DTU 8-1 Corded Phone
We're having problems with 4 phones. When we talk to callers on the speakerphone they can hear us, but we cannot hear them. It doesn't seem to be a volume issue. Is there another setting we should look at? It seems odd that 4 would be broken in the same way. Thanks!
Try pressing the Feature button and dialing the digit 1. This will turn the microphone on and the MIC lite should turn red. Don't lift the handset or press Speaker, just press Feature 1. This will also turn the MIC off if you want it disabled again.
Posted on Mar 15, 2007
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Posted on Jan 02, 2017
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