ATT System 25 Reference Manual

							Hold
Hold
Description
This feature allows users to temporarily disconnect from one call and either place or answer
another call. A single-line voice terminal user can place only one call on hold and must
remain off-hook to retain the held call. A multiline voice terminal user can place as many
calls on hold as it has lines and can hang up without losing held calls.
Single-line users can place a call on hold by flashing the switchhook (the user receives
Confirmation Tone).The user can then dial another party or return to the held call by
flashing the switchhook twice.The first switchhook flash sets up a conference call, the
second flash drops the third party: if System 25 Dial Tone, Busy Tone, or Reorder Tone (but
not Ringback Tone) was obtained when the third party was dialed, a single switchhook flash
will drop the tone and return the user to the held party.
Multiline voice terminal users can press HOLD and subsequently replace the handset or call
another party without losing the held call. The status LED associated with the held call winks
on all terminals with an appearance of the call, except in the case of a conference call. In
this case, the wink indication is given only to the party who invoked hold. To return to the
held call the multiline user goes off-hook, then presses the call appearance button
associated with the held call.
Considerations
The Hold feature allows voice terminal users to handle several calls simultaneously. For
single-line sets, placing a call on hold is the first step in transferring or conferencing the call.
Interactions
The following features interact with Hold
Attendant Console:The Attendant does not receive hold indications for lines (trunks)
appearing on the Console unless he/she placed the call on hold.
Bridging of System Access Buttons:A principal or bridging station user who is active on a
bridged call can hold the call by pressing the HOLD button. If there is still a bridging or
principal station active on the call, the green status LEDs of all associated System Access
(SA) and Bridged Access (BA) buttons remain lighted steadily. If no other principal or
bridging station is active on the call, the green status LEDs of all associated SA and 6A
buttons wink.
Any of the principal or bridging stations can enter the held call, unless Exclusion has been
activated or the maximum number of parties are already connected to the conversation.
Exclusion: A call can be placed on hold after Exclusion is invoked. The status LED of the
line appearance button and the Exclusion button will wink.
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Music-On-Hold: A held party on an outside line will receive Music-On-Hold if provided.
Personal Lines: A Personal Line cannot be placed on hold if any other stations are also off-
hook on that line.
Remote Access: Remote Access callers cannot use the Hold feature.
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							Inspection
Inspection
Description
This feature enables the user at any voice terminal administered for the Display feature to
perform the following functions:
l View incoming call identification messages even while busy on another call.
l View information about held or bridged calls.
l Examine information stored on REP DIAL, FLEX DSS, and LAST # DIALED buttons.
l Determine the busy status of pooled trunk groups.
l Determine feature button type.
To activate this feature, the display set user must first leave Normal Mode and enter the
Inspection Mode by pressing the INSPECT button. The system presents the following prompt
on the display screen:
Screen 1INSPECT
Then, to inspect specific information, the user presses the appropriate call appearance, loop,
or feature button.
Note:If the user presses INSPECT immediately after dialing a call, the call may
be disconnected; a pause of several seconds is recommended.
Display Formats
When the user presses the button
information about the button.
l Assigned Feature Button
The name of the feature
DIRECTORY).
l Unassigned Feature Button
NOT ASSIGNED is displayed
l Idle Call Appearance Buttonto be inspected, the INSPECT prompt is replaced by
is displayed (for example, ACCT ENTRY, SIGNAL,
The type of call appearance is displayed (for example, SYS ACCESS, PERS LINE).
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							FEATURES AND SERVICES
l Active Call Appearance Button
The normal call information pertaining to the call is displayed. If the display user is
excluded, EXCLUDED is displayed.
l FLEX DSS Button
The stored number and the associated name are displayed. If the button is not
programmed, FLEX DSS is displayed.
l REP DIAL Button
The digits stored on the button are displayed.If the button is not programmed, REP
DIAL is displayed.
l FACILITY Button
The display presents information about the pooled facility in the following form.
Screen 1XXX OF YYY BUSY
The user can return from Inspection Mode to Normal Mode
following actions:
l Press INSPECT again.or Local Mode by any of the
l Allow timeout to occur after 15 seconds of no station activity.
l Change switchhook state; if the user goes on-hook, the terminal returns to Normal or
Local Mode; if the user goes off-hook, the terminal returns to Normal Mode.
Considerations
Activation of the Inspection feature has the following impact on terminal operation:
l Hands-Free Answer on Intercom is disabled.
l If the user is on-hook but has a call on hold, there is no effect on the call.
l If the user is off-hook and in the midst of dialing, the system disconnects the call.
l Automatic Incoming Call Identification (see “Display” feature description) is
suppressed.
l The user cannot operate feature buttons.
l The user cannot perform call-handling procedures (such as holding, transferring, or
answering a call).
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							Inspection
The user of a non-attendant display set can exit from Inspection directly to Program Mode by
activating the Program switch. However, to reenter Inspection, the user must first go from Program
to Normal, then enter Inspection Mode.
Administration Requirements
Administration of the Display feature enables Inspection.
Hardware Requirements
The Inspection feature can be used only at display-equipped multiline voice terminals.
November 19952-203 
						

							Features and Services
Integrated Solution (IS)
Description
This feature is the enhancement to System 25 with a UNIX®-based computer (PC) acting as a
Master Controller. The PC is a multi-tasking computer which provides the following options:
l Basic Administration System (Included with IS): Basic Administration (BAS) allows you
to add, move, and change your telephone system to meet the demands of your business.
This is accomplished through the default administration interface of System 25.
l Advanced Administration Software (optional): Advanced Administration Software allows
you to add, move, and change telephone features and assignments quickly with the
assistance of menus and help screens that guide you through each procedure. (You cannot
simultaneously administer with both AAS and BAS.)
l Call Accounting System (optional): With the Call Accounting System (CAS), you can
track incoming and outgoing calls so that you can make informed decisions about your
telephone needs. You can monitor the cost of calls, print reports of incoming and/or
outgoing calls, track calls made on behalf of clients, and identify cases of telephone abuse.
l AUDIX Voice Power (optional): AUDIX Voice Power (AVP) combines features of the
Automated Attendant (AA) with an information service, message drop, and voice mail to
retrieve calls and take messages when a user is busy or does not answer. (You can have
either AVP or AA, but not both.)
l Automated Attendant (optional): Automated Attendant (AA) is a low-cost solution for
businesses requiring less features than those offered with AVP. Calls on specified lines are
automatically answered, and callers are directed to the extension number of the person or
department they are calling. (You can have either AVP or AA, but not both.)
l FAX Attendant (optional)
Considerations
For Basic or Advanced Administration, the Master Controller is connected to System 25 exactly as
an ordinary SAT. A serial port is required on the UNIX-based PC (one is standard, additional serial
ports are available on expansion boards). Advanced Administration is optional and requires the
appropriate software.
For Call Accounting System, the Master Controller is connected to System 25 just as an SMDR
printer. The final connection to the PC is made with a 355A adapter. A serial port is required on the
PC (one is standard, additional serial ports are available on expansion boards). A wide-carriage
parallel printer such as the 473/474 and 570/572 is strongly recommended (a single Centronics 36
pin parallel port is standard on the PC).
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							Integrated Solution
For Office Automation applications, there are no absolute requirements, but the customer’s needs
should be understood. For example, most customers who need word processing also would like a
letter-quality printer. A serial interfaced printer should be recommended due to the ease with which
serial ports may be added to the PC. Most serial printers will require a null modem cable such as our
PEC 2724-91G or 2724-92G.
Any AVP application will require at least one VOICE POWER board. Message Drop Service
requires a dedicated VOICE POWER channel. Announcement Service requires a dedicated VOICE
POWER channel. Automated Attendant, Voice Mail System, and Call Coverage may share the
same VOICE POWER channel, but traffic considerations must determine the number of channels
required to provide an acceptable level of service.
The Master Controller provides three slots for VOICE POWER boards. These slots may be used to
add VOICE POWER expansion boards.
Interactions
Both Administration and Call Accounting require a serial port on the PC.
The Automated Attendant feature of VMS may interact with the Call Coverage feature of VMS if Call
Coverage is invoked when Automated Attendant attempts to transfer an incoming call. If this
happens, two Voice Power boards begin talking to each other and the incoming caller is left
needlessly confused. Avoid this situation by administering the number of rings for your Automated
Attendant to return to a caller to be fewer than the number of rings it takes to activate Call
Coverage. Alternatively, if the station in question will always be available to answer a call,
administer the Automated Attendant to perform blind transfers. (To obtain a better understanding of
the VMS features and their interactions, read the VMS documentation and the Integrated Solution
user guide.)
Administration Requirements
System:
l Requires one port assignment on a ZTN78 Tip Ring CP per VOICE POWER channel.
l VOICE POWER channels which will be used for Automated Attendant service should be
administered as a single DGC group.
l Appropriate feature port type codes exist for the different AVP functions and have to be
administered (see the R3 Administration Manual for the correct data values).
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							Features and Services
Hardware Requirements
Requires appropriate cables and connectors for Administration and/or Call Accounting
Descriptions of the SIP (Station Interconnect Panel), TAE (Trunk Access Equipment), and
associated cables and adapters are provided under the heading “Connectivity” in Section 4 of this
manual.
2-206November 1995 
						

							Intercept Treatment With Reorder Tones
Intercept Treatment With Reorder Tones
Description
Reorder tone (fast busy) is provided when a call cannot be completed (for example when an
unassigned or toll-restricted number is dialed, a dialing error occurs, a requested trunk group
is busy, or an attempt to park a call falls).
Calls to FPDCs that are not signed-in anywhere or to unassigned DID numbers will be routed
to the attendant or will receive Reorder Tone, at the System Administrator’s option. Any
attempt to dial a restricted call (toll or access restricted) will be intercepted and routed to
Reorder Tone.
Considerations
Intercept treatment provides a calling party with positive feedback of an error in dialing or
use of an incorrect code.
Interactions
The following feature interacts with Intercept Treatment With Reorder Tones.
Account Code Entry, Forced:The user receives reorder tone when an account code is
required on a call but is not entered.
Callback Queuing:If automatic Callback Queuing (CBQ) for outside calls is administered
and all trunks are busy, Queuing Tone is returned to the calling party. If automatic CBQ is
not administered, the caller hears Reorder Tone when all trunks in a pool are busy, but can
queue the call using the appropriate manual method.Reorder Tone is also returned if the
busy trunks are not administered for queuing or if all the queue slots are in use. In these
cases, queuing can not take place.
Park: An unsuccessful attempt to park a call due to misdialing or attempting to park more
than one call at a voice terminal results in Reorder Tone,
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							FEATURES AND SERVICES
Interdigit Timeouts
Description
This feature allows an originating register to be made available for others if dialing is not
completed within a set time period.
Interdigit timeouts is 24 seconds until the first five digits have been dialed, 10 seconds until
the next five digits have been dialed, and five seconds thereafter.
After connection has been established, voice terminal dial pad button presses are interpreted
as end-to-end signaling requests and touch-tones are placed on the outside line.
Considerations
Interdigit timeouts also apply to data calls.
When a user dials out over a trunk set up for dial pulse rather that Touch-Tone service, the
interdlglt timeout interval is involved.The caller cannot speak to the called party until the
timeout expires (even though the caller may be able to hear the called party). If the user
presses the # button after dialing the last digit, this timeout ends and the caller may speak
immediately.
Interactions
The following feature interacts with Interdigit Timeouts.
Tie Trunks: For tie trunks only, the talk/signaling path is cut through when answer
supervision is received from the distant end.Thus, there is no need to dial # or wait
additional seconds for timeout.
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