Troubleshooting
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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 phone socket
(see "Installation").
Display reads "Not configured", indicator LED is lit, handset off-hook, no dial
tone
Your phone has not been assigned a call number. Contact your system administrator.
Display reads "Incorrect phone type" – Indicator LED is lit in standby mode
The phone registered originally was of a different type. The settings available (i.e. the phone's phone
book, the freely configurable keys) are not your own, but those of the phone registered originally.
To register your phone, go to the "Phone book" menu. Press "Edit". The display reads "Log on new set".
Press "Yes". The LED goes out: Your phone is now registered. Press the END key to return to standby
mode.
The personal settings taken from the original phone are not altered by the logon procedure.
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.
The display reads: "Power supply weak"
Due to the line length and the phones and expansions connected, the power supply can reach a critical
range. Contact your system administrator if you experience any operating problems. The approximate line
length is indicated on the display.
Insufficient display contrast
The setting for the display contrast is inadequate. Alter the setting in the configuration mode, see "Setting
the display contrast".
