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Troubleshooting
Troubleshooting
Your call partner cannot hear you or you cannot hear your call partner
Make sure the handset cord is correctly plugged into both the handset and the phone (see "Installation").
Handset off-hook, no dialling tone, no display
Make sure the phone cord is correctly plugged in to both the phone and the LAN socket (see "Installation").
Display reads "Not configured", handset off-hook, no dial tone
Your phone has not been assigned a call number. Contact your system administrator.
Display is working, but connection is not possible
Your phone may be locked. Unlock your phone (see "Locking/unlocking your phone").
Freely configurable keys cannot be configured.
The configuration may be locked. Unlock your phone (see "Locking/unlocking your phone").
The display reads: "trying to register"
The telephone cannot be registered. Contact your system administrator.
Insufficient display contrast
The setting for the display contrast is inadequate. Alter the setting in the configuration mode, see "Setting
the display contrast".
Impaired sound quality during hands-free operation
The sound quality can be affected if the volume is too loud – turn down the volume. If the sound quality
fluctuates, contact your system administrator.
Impaired sound quality when making phone calls
The sound quality can be affected by electromagnetic interference's of the screen and by the network
transmission quality (LAN). Contact your system administrator.
Note
For all other messages, faults and questions you may have, contact your system administrator.
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