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51
Fault
No display
No tone
No sound
Messages displayed in a
foreign language
Possible causes
Check that the set is connected to the line
(line tone in the handset).
Check the connection cord to the line.
Check that the other sets in the system are working.
Check the setting of the display contrast.
Check that the set is connected to the line (display).
Check the connection cord to the handset.
Check that the other sets in the system are working.
Check the setting of the handset, loudspeaker or micro-headset
volume.
Check the handset, loudspeaker or micro-headset volume setting.
Check the choice of display language.
A problem? Check…