AT&T 1987 AT&T Telephone User Manual


 
Preselection:
Allows multiline voice terminal users to override the above line preference features.
Users may simply press a desired line access button before going off-hook. The user will be
connected to the facility selected unless the facility is busy and the party using it has
invoked Exclusion or is part of a conference call that is at maximum capacity.
When off-hook, a user can select a facility by pressing the associated button. (This will
terminate the call the user was on. )
A user may activate the busy-to-idle reminder on a busy AUTO ICOM, DSS, FLEX DSS, or
FACILITY button by pressing the button while on-hook. A burst of ringing is provided
when the facility becomes idle.
Refer to the subsection on the Busy-to-Idle feature for
additional information.
Considerations
Prime Line Preference (on the topmost SYSTEM ACCESS or Loop button) and Ringing Line
Preference are assigned by default to all multiline voice terminals. While these assignments
may be changed, it is strongly recommended that Ringing Line Preference be retained.
It is recommended that Prime Line Preference not be assigned to a Direct Trunk Attendant
Console (DTAC).
Preselection allows users to override line preference features already administered for the
terminal and to activate the busy-to-idle reminder feature.
Interactions
Attendant Console, Direct Trunk: If a line rings at a DTAC while the attendant
is on another call, Ringing Line Preference will be invoked when the attendant hangs
up.
Ringing Line Preference: Ringing line preference overrides Prime Line
Preference and Preselection when a call is ringing at an on-hook voice terminal.
Power Failure/Cold Start: On power-up, most multiline voice terminals will have
no I-use LED lit and will not draw dial tone until a button is pressed. After this, line
selection should work as described above.
Administration Requirements
Voice Terminal (Station Port):
Prime Line Preference:
Assign Prime Line Preference -
Default = Top SYSTEM ACCESS button or top
LOOP button (Switched Loop Attendant Console only).
Ringing Line Preference:
Assign Ringing Line Preference (Yes, No) - Default = Yes.
Hardware Requirements
None
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