Testing the Telephone

You can test your telephone functions. 

Precondition: Your telephone is idle. 

Press the key. The LED lights up. 

Select and confirm. 

Enter the code. 

If everything is OK, 

all LEDs on the telephone start flashing, including the ones on the key module (only the Program/Service menu LED lights up); 

your station number appears on the screen;

all pixels in the display are activated;

the ringer signal sounds.