Rings

One long

One long and one short One long and two short One long and three short

Inside call Outside call

Transfer or returning call Returning Callback call

Line Button Lights

Red

Green

Red and green Red and green Red and flash green Red and flash green Fast flash green Slow flash green

Automatic connection Line or feature in use Line Request in use You’re on line Incoming call Returning transfer Held call (yours)

Held call (co-worker’s)

Conference Calls

1.Dial first extension or number

2.Press Conf

3.Press line button

4.Dial next extension or number

5.Announce call and press

Conf

6.Repeat steps 2-5 for each participant

7.Hang up to end conference

Press Drop and line button to drop single participant

Press Hold to temporarily leave conference

Press any participant’s line button to rejoin conference

Transfer Calls

Unannounced Transfer

1.Press Transfer

2.Press line or SA button

3.Dial extension or number

4.Press Transfer or hang up

Announced Transfer

1.Press Transfer

2.Press line or SA button

3.Dial extension or number

4.Announce call

5.Press Transfer, hang up, or return to call on hold

One-Touch ManuaI Transfer

1.Press Auto Dial

2.Announce call

3.Press Transfer, hang up, or return to call on hold

One-Touch Auto Transfer

1.Press Auto DiaI

Camp-On

1.Press Camp-Onor press Feature and

Select

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AT&T MLX20L, MLX-28D, MLX-10D manual Rings, Line Button Lights, Conference Calls, Transfer Calls