AT&T Definity 7406D+ Betriebsanweisung PDF herunterladen (Seite 47)

Self-Test

✓

To test lights and

1

ringer of your voice

terminal

2

3

Press [

Shift ]

● Green light goes on

Press and hold [

Drop ]

●

Ringer sounds

● All columns of lights next to buttons above and to

right of dial pad go on

●

Display is activated

Release [

Drop ] to end test

●

Ringer and lights return to pretest state

Note: If ringer or lights do not respond during test,

notify your System Manager.

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