What to do if my Aastra DT390 Cordless Telephone says 'Battery low, charge now'?
If your Aastra Cordless Telephone displays 'Battery low, charge now', it means the battery level is low. You should charge or replace the battery.
Why does my Aastra Cordless Telephone have no display?
If your Aastra Cordless Telephone has no display, it could be due to a low battery level or a defective phone. Try charging the battery. If charging doesn't resolve the issue, contact your system administrator.
What to do if my Aastra Cordless Telephone shows 'Enter PIN code'?
If your Aastra Cordless Telephone displays 'Enter PIN code', it means the telephone lock is activated. You should enter the required PIN code. If you've lost the PIN code, enter a new one via PDM or perform a factory reset via PDM.
General| Type | Cordless Telephone |
|---|---|
| GAP Standard | Yes |
| Speakerphone | Yes |
| Frequency | 1.9 GHz |
| Range | Up to 300m (outdoor), Up to 50m (indoor) |
| Headset Connection | 2.5mm |
| Compatibility | Aastra communication platforms |
| Audio Quality | HD Audio |
Essential safety precautions to reduce risks like fire, shock, and injury.
Step-by-step guide to power on the DT390 cordless phone.
Instructions on how to power off the DT390 cordless phone.
How to answer incoming calls, mute ringing, and change answering modes.
How to transfer an ongoing call to another extension or busy line.
Protecting the phone from unauthorized use by requiring a PIN on power-on.
Instructions on how to charge the phone's battery using desktop or rack chargers.
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