What to do if my Siemens IP Phone displays 'Not authorized'?
If your Siemens IP Phone displays 'Not authorized', it means a blocked function was called. Contact the relevant service personnel to request the COS (Class of Service) for the blocked function.
What to do if my Siemens IP Phone displays 'Base 1 Outgoing and incoming calls and activation/deactivation are not possible'?
If you see the following on your Siemens IP Phone: 'Base 1 Outgoing and incoming calls and activation/deactivation are not possible', it means that the handset is locked. Remove the batteries from the handset and then re-insert them, proceeding as you would when loading batteries for the first time.
What to do if my Siemens IP Phone shows 'Base 1 Outgoing and incoming calls and activation/deactivation are not possible'?
If your Siemens IP Phone shows 'Base 1 Outgoing and incoming calls and activation/deactivation are not possible,' it means that the handset is blocked. To fix this, remove the battery pack from the handset and then re-insert it. Then, proceed as if you were loading batteries for the first time.
What does de-crescendo tone during input mean on Siemens IP Phone?
A de-crescendo tone sequence during input on your Siemens IP Phone indicates that an incorrect entry was made. Repeat the key sequence while watching the display, and consult the operating instructions if needed.
Why Siemens Handsets produces de-crescendo tone sequence during input?
If your Siemens handset produces a de-crescendo tone sequence during input, it means an incorrect entry was made. Repeat the key sequence while watching the display; where applicable, consult the operating manual.
Why can't I hear anything during a call on my Siemens IP Phone?
If you can't hear anything during a call on your Siemens IP Phone, it might be because the 'R key' was pressed, muting the microphone and the receiver. To fix this, press the 'Delete' Display key to reactivate the microphone and receiver.
What to do if my Siemens IP Phone displays 'Maximum input time was exceeded'?
If your Siemens IP Phone displays 'Maximum input time was exceeded', avoid making long pauses between keystrokes when entering information.
What to do if Siemens Handsets shows 'Not authorized'?
If your Siemens handset displays 'Not authorized,' it means a blocked function was called. Apply to the relevant service personnel for the COS for the blocked function.
What to do if Siemens Handsets shows 'Do not disturb'?
If your Siemens handset displays 'Do not disturb,' it means data transfer is active. Please wait and try again later.
Why does my Siemens Optipoint 420 say 'no access'?
If your Siemens Telephone displays 'no access', it means a blocked function was called. You must apply to the relevant service personnel for the COS for the blocked function.
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