AT&T ISDN 7506, ISDN 7507, ISDN 7505 manual Self-Test

	Self-Test			✔
To test the lights and		1	Press ì Select ü (while on-hook)
ringer of your voice			● Green light comes on
terminal			Press ì Drop ü
		2

●	Self-test begins
●	If the test passes, the following will occur;
	proceed to Step 3
	— You will hear periodic tones if the test is
	proceeding correctly
	— The green Message light comes on

3Once you have heard a tone, you can press each button that has a light(s). The green light comes on indicating the button works correctly

4Lift the handset; the green light will flutter. Press

each button on the dial pad [tones in handset]

5After the last button press, press the ì Select ü button, then press the ì Drop ü button to exit and

return to the calling mode