Step by Step
Ch ecking the tel ep hone
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Checking the telephone

Checking its functionality

You can test the functionality of your telephone. This in-
cludes the following checks:
Are all the key lamps operating properly?
Is the display operating properly?
Do all the keys function?
Are there any problems with the speaker, handset,
ringing tone volume, ringing tone pitch, alerting tone
or speakerphone function? (The speakerphone func-
tion is not available with the optiPoint 500 economy/
basic).
Otherwise, if necessary, for servicing:
the terminal ID (identity) of the telephone
the software version of the optiPoint 500 telephone
the power feeding range of the line.
Precondition: The telephone is in the idle state.
Press the key. The lamp lights up .
BEnter the service code.
or
Select and confirm.
and
Select and confirm the required test function. Follow
the user prompts on the display.
Press the key. The lamp goes out. The test is ended.
Service Menu
Phone test?
Service Menu