AT&T 3070 - Manual (Page 24)

Announced Intercom Calls
To place an announced intercom call:
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If the red light next to it is not already on, touch
Intercom-Voice.
Touch the Auto Intercom button for the intercom number
you want to dial.
Intercom
Voice
+ + John
Your speaker goes on, and you hear a beep.
Lift your handset and begin speaking.
One-Touch Transfer
If you have an Auto Intercom button for the intercom number
to which you want to transfer an outside call, you can transfer
the call with one touch:
Touch the Auto Intercom button. John +
Hang up.
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