AT&T MERLIN LEGEND Release 4.0 Feature Reference page 51

Feature Reference
Mode Differences
Hybrid/PBX Mode
In Hybrid/PBX mode, the system automatically turns on the speakerphone and
selects an SA button when you press an inside or outside Auto Dial button
before lifting the handset.
Key Mode
In Key mode, the system automatically turns on the speakerphone and selects
an outside line button when you press an outside Auto Dial button without lifting
the handset. When you press an inside Auto Dial button without lifting the
handset, the system automatically turns on the speakerphone and selects an
ICOM button.
Behind Switch Mode
In Behind Switch mode, the system automatically selects the prime line button
and turns on the speakerphone whenever the user presses an outside Auto Dial
button. If the Automatic Line Selection sequence has been changed to select
the ICOM button, press the prime line or outside line button before pressing an
outside Auto Dial button. Pressing an inside Auto Dial button without lifting the
handset causes the system to automatically turn on the speakerphone and
select an ICOM button. The system does not automatically select an outside
line.
Telephone Differences
Direct-Line Consoles
Inside Auto Dial can be programmed onto available buttons on a DLC. Use the
buttons to transfer a call, make an inside call, or determine availability of the
extension.
Queued Call Consoles
Use the Personal or System Directory instead of outside Auto Dial buttons,
which cannot be programmed on the Queued Call Console (QCC). The
Extension Directory or DSS buttons can be used instead of inside Auto Dial
buttons.
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Auto Dial