AT&T 3070 - Manual (Page 5)

Placing Calls
With your MERLIN™ system, you can place two types of calls:
outside calls and intercom calls.
OUTSIDE CALLS
To call someone who is not connected to your MERLIN system:
Lift your handset.
The MERLIN system automatically selects an available outside
line.
Dial the number.
+
outside
number
NOTE: When the red light is on next to a line button, it means
you are using that line or will get that line if you lift your hand-
set. When you lift your handset to place a call, the green light
goes on next to the red light to show that the line is busy.
To select a specific outside line:
Touch the button for that line.
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●
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555-1234
+
Lift your handset.
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