Three possible problems - Bad handset, bad handset cord, or bad telephone. Try another handset and cord from a known good phone. If the problem phone still doesn't work the hookswitch spring may be weak. You can remove the screws from the bottom of the phone and take the bottom off. The hookswitch will have a small spring that you can stretch or rebend to put more upward force on the hookswitch to make it positively go off hook. Also the dtu phones have a jack for the handset and a jack for the headset on the bottom - make sure you are using the handset jack.
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It requires a headset key to be programmed in Memory Block 4-12 as a type of Feature Access Key in order for the jack underneath the phone to work. Then you just press the button to speak via the headset.
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,
Program Thomson Consumer Electronics (GE?) 2-9316A Speaker Phone (what we found works) To program: 1. press speaker or lift handset. 2. press STORE 3. dial the number to be stored 4. press MEMORY DIAL 5. press location (0-9 on keypad or 1 of the 3 emergency quick dial) 6. press speaker or hangup. To dial emergency numbers: 1. press speaker or lift handset. 2. press any of 3 emergency quick dial To dial stored numbers: 1. press speaker or lift handset. 2. press MEMORY DIAL 3. press location (0-9 on keypad)
Does anyone know how to add PAUSE in a stored dial string?
I am assuming this is on a DTU 16D nec phone. On the right side of the phone is a volume up and down button. If someone calls you, you adjust this while the phone is ringing. If you adjust it after you answer it controls the voice volume (what you hear through the ear piece) if you adjust it while the handset is down but there is no one calling you it adjusts the display contrast on the phone.
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.