hi,1.to adjust the ring tone volume. from your phone set,press speaker dial 601.press the arrow key up or down to adjust.
2. if your station is programmed as system admin phone,then you can press feature 80 feature.to toggle between day or night.do not press speaker button while doing this.
3.the headset port need to be program,or you can do without it,by purchasing the headset came with the adapter and connect thru the handset cord.
the new model is DTH-16D.
CAN email me if you need a new phone,
[email protected]
Thanks for your response! How do I turn my mic off?
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