Incoming calls on a NEC DSX telephone system usually follow Key Ringing (3112). The DSX 22B and 34B Display Phones can be programmed to ring or not ring on an individual basis by using the feature code # 7 2 5. Press # 7 2 5 and you’ll notice that all of your line appearance buttons are now either red, green, or amber.
- A red light means your phone will not ring (lamp only).
- Green means your phone will ring (standard).
- Flashing Green means a delay ring.
- Slow flashing green means night ring.
Press the line button repeatedly to cycle through the ring types. Press the speaker button when you are finished. If you press # 7 2 5 and do not see any lights on your phone you may be using loop keys instead of line keys and will need to enter system programming to make your phone ring.
Tutorial:
