How do I program a button to use a headset

Yes, the NEC DTU-16D-1A can be used with a standard PSTN line. You will need to program the phone system to recognize the PSTN line instead of the ISDN2 line. Here are some steps you can take:

1. Access the programming mode on the NEC Xen Alpha system by pressing "Speaker" and then "7" on the main phone.
2. Enter the system password, which should be provided in the user manual or by your system administrator.
3. Press "Speaker" and then "3" to enter the line programming mode.
4. Scroll through the line options using the arrow keys until you find the option for PSTN. Select this option.
5. Save your changes by pressing "Speaker" and then "Store".

Once you have completed these steps, your NEC DTU-16D-1A handsets should be able to connect to the PSTN line and function properly.

When your're on a call, you press Conference, get internal dial tone, dial the extension you want or 9 plus the whole outside number you want, then press Conference again to tie the calls together. Some exts only have access to one call at a time, so if you can't make 2 calls at a time, this feature won't work.

Your PABX line settings need to be programmed for "ringing" as incoming call notification for each specific assigned number (wired port assignment).

hit feature key,hit a line key,dial 9 plus the number,hit feature

you need to remove ringing programming in 4-01 for that extension. ldtsnj.com

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Yes while the phone is ringing use the down arrow key and it will lower the volume.

Press Feature 1 That will turn the mic off, or on.

For the DTU phone on an NEC Elite system:
Memory Block 4-12
put in the port number and the Lkey of the extension you want to make a headset key.
Programmin on a 16button phone, Lkey 11 needs to be lit and will display H SET to verify.

For the DTP phone, it is generally on an NEC 2000, which is entirely different.

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]