Questions and answers
Forgotten system PIN.
¤Reset the system PIN to 000
The other party cannot hear you.
•The handset is "muted". Activate the microphone again
Some of the network services do not work as specified.
•Features are not enabled. Contact the network provider for details.
The caller's number is not displayed.
•Calling Line Identification (CLI) is not enabled for the caller. The caller should ask the
network provider to enable Calling Line Identification (CLI).
•Calling Line Identification Presentation (CLIP) is not supported or enabled by the network
provider. Ask the network provider to enable Caller Line Identification Presentation (CLIP).
•The telephone is connected via a PABX or a router with an integrated PABX (gateway) that
does not transmit all information.
¤Reset the system: Briefly pull out the power plug. Reinsert the plug and wait until the
¤Check the settings on the PABX and activate phone number display, if necessary. To do
this, search for terms such as CLIP, calling line identification, telephone number
identification, caller ID, ... in the system user guide or ask the system manufacturer.
You hear an error tone when keying in (descending tone sequence).
•Action has failed/invalid input. Repeat the process. Read the display and refer to the user
guide if necessary.
You cannot listen to messages on the network mailbox.
•Your PABX is set to pulse dialling. Set your PABX to tone dialling.
No time is specified for a message in the call list.
•Date/time are not set. Set the date/time.
Registration or connection problems with a Bluetooth headset.
¤Reset the Bluetooth headset (see headset user guide).
¤Delete the registration data on the handset by de-registering the device.
¤Repeat the registration procedure.
Internet telephony not possible.
•No IP account has been set up: Register the phone with your provider for Internet telephony
•Display shows Provider error registration failed: Registration of the phone with your provider for Internet
telephony has failed. Repeat the process. Check registration status in web configurator if necessary.
•Display shows No IP connection: No IP account configured or the IP connections have been deactivated