Step by Step
Checking the telephone
116
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 (only available with
optiPoint 420 standard)?
Otherwise, if necessary, for servicing:
• the terminal ID (identity) of the telephone
• the software version of the optiPoint 420 telephone
• the power level of the line.
Precondition: The telephone is in the idle state.
Press the key. The lamp lights up.
mEnter 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.
Prog./Serv.
Phone test? >
>
Prog./Serv.