AT&T MERLIN LEGEND Release 4.0 Feature Reference page 199

Feature Reference
Considerations and Constraints
While a Personal Directory on an MLX-20L telephone is being programmed, the
user cannot receive calls (the caller hears a busy signal).
Personal Speed Dial is not related to the Personal Directory. See "Speed Dial"
for additional information on Personal Speed Dial.
In Release 2.1 and later, when an MLX telephone other than an MLX-20L is
plugged into a port that has a Personal Directory resource allocated, and the
Personal Directory does not contain any entries, the Personal Directory resource
is released and can be programmed to be used by another user. (Up to 48
Personal Directories can exist on a system.)
Telephone Differences
Direct-Line Consoles
An operator with a digital Direct-Line Console (DLC) can use all Directory
features.
Queued Call Consoles
To dial extensions or telephone numbers with the touch of a button, Directory
features must be used. QCC operators cannot use Auto Dial.
A QCC operator can access the Personal Directory by selecting
the Home screen. A QCC operator can only place 12 entries in the Personal
Directory (six on the first page and six more on the second page of entries).
Directory features can be used for transferring calls. If an operator releases the
call immediately after pressing the button for the listing, the caller hears the dial
tone plus the touch tones for the dialed digits. If the operator waits until after
dialing begins, the caller does not hear the dial tone and dialed digits.
Other Multiline Telephones
Analog Multiline or MLX-10 Telephones
A user with an analog multiline telephone or an MLX-10 telephone cannot use
the Extension Directory feature or the Personal Directory feature but can dial the
listings in the System Directory by dialing the System Speed Dial codes
assigned to them.
on
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Directories