Question about NEC DTU 8D-2 Corded Phone
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Posted on Jan 02, 2017
You can try pressing the feature key and then dialing 26. This is used to set background music on the extension when the phone is at rest. It also turns it off. This is on the dtu16 phones. Here is a link that has most of the user manuals for NEC phones. you should be able to find your manual here. http://www.neccare.com/cng/docs.nsf/Lib3?OpenView&Start=1&Count=100&Expand=6.13#6.13
Posted on Nov 04, 2008
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