ATT System 25 Reference Manual

Last Number Dialed
Last Number Dialed
Description
Last Number Dialed automatically saves the last number dialed from a multiline voice
terminal or ATL cordless telephone and allows the user to place the call again without
manually redialing the number. The feature is administered to a button on the terminal. Both
inside and outside calls can be made in this way.The original call can be placed by manual
dialing, by operation of a programmed button, or by Speed Dialing.
To use the feature, the caller first...

FEATURES AND SERVICES
currently stored on the button.
Automatic Intercom: Numbers called using an Automatic Intercom button are not saved by
the Last Number Dialed feature. The number currently stored by Last Number Dialed is not
changed by operations of the Automatic Intercom button.
Bridging of System Access Buttons:The Last Number Dialed feature saves numbers called
from either Bridged Access buttons or System Access buttons.
Call Accountability: When a station user dials ##PDC to provide...

Last Number Dialed
Administration Requirements
Last Number Dialed is a default feature on all multiline voice terminals. One button is
assigned to the feature at each set.The feature can be moved or removed by
administration.
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FEATURES AND SERVICES
Leave Word Calling
Description
Leave Word Calling (LWC) is available only when a Voice Message System (VMS) is
connected to the System 25; the VMS provides the message processing and voice
synthesizing facilities used by LWC.The interface between System 25 and VMS requires
administration of special ports on analog tip/ring circuit packs.
LWC enhances the messaging capabilities of System 25 by enabling users to generate “call
me” voice messages for PDCs and FPDCs.The messages have a...

Leave Word Calling (LWC)
Considerations
System 25’s Leave Word Calling feature provides an easy method to send “call me”
messages by way of an attached VMS. When the feature is activated, caller and called party
information is delivered to the VMS, which lights the Message LED of the called party and
then prepares a brief message containing the caller’s name and extension. The called party
can retrieve the message at his/her convenience.
Multiline voice terminals cannot use dial code #92 to activate...

FEATURES AND SERVICES
Hardware Requirements
A Voice Message System must be connected to the System 25 by way of a port on a ZTN78
Tip Ring Line circuit pack.Use of a TN742 Analog Line circuit pack for VMS interface is not
recommended.
2-214 

Line Selection
Line Selection
Description
Multiline voice terminals may have many line (facility) appearances. There are three methods
by which a user may select a desired line: (1) Prime Line Preference, (2) Ringing Line
Preference, and (3) Preselection.
Prime Line Preference:
Automatically connects a multiline voice terminal to a specified line or facility designated as
preferred when the terminal goes off-hook. This feature may be assigned to System Access,
Loop, Bridged Access, Automatic Intercom,...

FEATURES AND SERVICES
If a line rings at a multiline terminal when the terminal is busy on another call, Ringing Line
Preference will not activate, even if the user goes on-hook during the ringing cycle.
However, Ringing Line Preference is not canceled at the Attendant Console while the
attendant is off-hook. If a line is ringing while the attendant is off-hook, the ringing line will
be selected as soon as the attendant goes on-hook.
Preselection:
Allows multiline voice terminal users to override the...

Line Selection
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 Port:
l Prime Line Preference:
Assign Prime Line Preference; default = top SYSTEM ACCESS button or top LOOP
button (Switched Loop Attendant Console only).
l Ringing Line Preference:
Assign Ringing Line Preference (yes or no; default = yes)....

FEATURES AND SERVICES
Line Status and I-use Indications
Description
Provides users with a usual indication of the status of feature buttons and lines appearing at
a their multiline terminals.A green status LED and a red I-Use LED are provided for each
programmable button on most multiline voice terminals.
Table 2-K summarizes LED states and associated descriptions for line appearances.
Table 2-K.
LED Indications
I-UseLine StatusMeaning
(Red LED)(Green LED)
OffOffFacility is idle.
On
OnIf off-hook,...