What does 'Not authorized' mean on Siemens OpenStage SL4 professional Handsets?
If your Siemens handset displays 'Not authorized', it indicates that you've tried to use a blocked function. Contact the relevant service personnel to get the necessary permissions for the blocked function.
What to do if Siemens OpenStage SL4 professional are not reacting to keystrokes?
If your Siemens handset isn't responding to keystrokes, it's possible that the keypad lock is activated or a key is stuck. Press the hash key until you receive confirmation, and make sure to release the key if it's stuck.
Why do I hear a de-crescendo tone on Siemens OpenStage SL4 professional Handsets during input?
If you hear a de-crescendo tone sequence during input on your Siemens handset, it means you've made an incorrect entry. Repeat the key sequence while carefully watching the display.
General| Resolution | 128 x 64 pixels |
|---|---|
| HD voice | Yes |
| Vibrating Alert | Yes |
| Mini-USB | No |
| Connectivity | Ethernet |
| Supported Protocols | SIP, RTP |
| Power Supply | PoE or external power adapter |
| Headset Connection | 3.5 mm jack |
| Operating Temperature | 0 to 40 °C |
| Storage Temperature | -20 to 60 °C |
| Relative Humidity | 10% to 90% (non-condensing) |
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