Comdial Digital Telephone System Instructions Manual

							IM166-107
Description of System Features
Automatic Redial (Of Busy
Number Or Unanswered Call)
Refer to the discussion titled Redialing.
Automatic Station Relocation
With this feature, the system will automatically
recognize a particular station should that station be
relocated to a new station port. When someone
places a telephone at a new port location, it will
continue to provide the same class of service
parameters and respond to the same extension
numbers as it did at the original station port. A
programmer must enable this system feature using
system class of service programming. As an added
feature when someone plugs an LCD speakerphone in
a new station port, the system will prompt the user on
the display to verify the relocation of features.
Auxiliary Equipment Interface
An installer can use the auxiliary equipment interface
to connect a telephone device or a data device to an
outside line ahead of the common equipment. The
system can detect an off-hook condition in a device
that an installer has connected to the auxiliary
equipment interface, and turn on the status light for
that line at telephones that have that line appearance.
It does this to indicate that the line is busy and not
available for station use. Auxiliary equipment interface
connections provide connections to lines 2 and 4. A
user cannot interrupt an external device by pressing
the line button unless the line has been programmed
to be non-private.
Auxiliary Ringer Interface
Refer to the discussion titled Ringing.
Background Music
Refer to the discussion titled Music features.
Basic Key Service (1 A2) Emulation
The system provides all of the basic, lA2-type, key
service features. These features are: selective line
pickup, common line pickup, multiline pickup, and
hold. No special class of service programming is
required.
Battery Back-Up
Battery Back-Up (Chassis, Cable, And Batteries)
The manufacturer offers battery back-up assemblies
including chassis, cable, fuses, and batteries as
optional kits available through normal distribution
channels. The assemblies are designed so that
installers can connect them directly to the
uninterruptable power source (UPS) interface located
on~the-common equipment chassis. The system does
not require any action from the telephone user to
make it operate on battery power nor does it require
any class of service programming action on the
programmer’s part.
Battery Back-Up Interface
The common equipment cabinet provides an interface
for an optional battery back-up kit to give full
uninterrupted system power in case of an AC power
loss. The switching and charge circuitry are in the
common equipment, while the batteries, chassis, and
cable are packaged as a separate option. When
plugged into an active AC power source the common
equipment will constantly charge the attached
batteries. Built-in circuitry automatically switches to
battery power when AC power is lost. With batteries
at full charge, a fully loaded system will operate for a
minimum of one hour without AC power.
Block Programming
Refer to the discussion titled Class Of Service.
Call Announce With Handsfree
Answerback
Refer to the discussion titled Intercom. 
						

							Description Of System FeaturesIMl66-107Call Costing And Station Message Detail
Accounting Reports
The system provides built-in, estimated costing of all
outside calls. It also provides station message detail
accounting (SMDA) printout reports of all costed calls
as well as displaying call costs on LCD
speakerphones.
Call costing, in general, provides a means of
establishing costs to be applied to outside calls made
from system telephones. Call costing computes
charges for a call after it is completed.It does not
restrict dialing as toll restriction does. Call costs are
based on a two-tier time rate and includes a line
surcharge cost. A programmer can program
allowances for call set-up and minimum call duration.
The system provides several ways of determining call
costing making it is possible to apply reasonable rates
for the entire country.
The system will automatically provide a report
whenever the costed call storage reaches 95 percent
of capacity. Additionally, the programmer can arrange
for these reports to be printed automatically at a
specific time of day.
There are five different SMDA reports which can be
produced:l
Detailed report sorted by stations
aDetailed report sorted by account codes
0 Line summary report
l
Department summary reportl
Department Call Distribution (DCD)l
A general output of all records
Upon completion of report printing, the telephone
attendant can delete all records the system used for
the reports. The system will not delete any call
records created between the time the report printout
was started and completed. If the attendant does not
delete the reports after they are printed, a later
command to delete records’will delete all records at
that point and not just the ones that were printed in thepreviously generated reports. The programmer can
take programming action to always delete the records
after they have been printed. The attendant has the
ability to request particular reports to be printed at any
time they are required.
The programmer can establish account codes to allow
system users to identify calls by category or by any
other desired grouping so that the system can report
costing by that category or grouping. Further, the
programmer can define department numbers and
assign stations to different departments so that the
system can produce call cost reports on a
department-by-department basis.
Programmers must use call costing and SMDA
reporting class of service programming to set the
costing features, and assign stations to specific SMDA
departments using the station class of service
programming. He or she can also enable the LCD
speakerphone display of costed calls through station
class of service programming.
SMDA Reporting Through VDT Programming and
Per-Station SMDA
With the release of software revision 13A, the
programmer can use the VDT programming option to
request that the system send SMDA reports to either
data port A or data port B for printout.It is also
possible to use this feature remotely through a data
communications arrangement to capture SMDA
reports.In addition to this VDT enhancement, this
software release allows the system to provide SMDA
station reports for individual stations when the
attendant requests them by dialing certain code
numbers at station 10 or 12. Note, however, that the
system can provide only one station report at a time.
Station Message Detail Recording (SMDR)
The SMDR feature generates a call record for printing
as soon as the system collects the record. It presents
the call record at an 
FE-232 level as ASCII transmit
data in an 
80column format at the data port available
for that purpose.2-4 
						

							IM166-107
Description Of System Features
Call Forwarding
Call Forwarding Dn All Calls
This feature allows a station user to designate another
station or the attendant station as the recipient of all
calls normally directed to ring at his or her station.If
the user has call forwarding enabled when the
attendant activates night transfer of ringing, the
system 
fowards the night ringing assignment of the
users station. Calls that the system forwards to a
recipient station can be forwarded again by that station
user to another station. Thus, two levels of call
forwarding on all calls can occur, first, from station A
to station B and then, from station B to station C. As a
reminder that call forwarding is enabled, a short tone
burst will occur at the user’s station for each intercom
call that it receives while its calls are forwarded.
When the programmer has assigned a call forward
button to a station, its associated LED will turn on to
indicate that the feature is enabled when the user
presses it; however, if the call forward button is
programmed as a second level to a 
DSS/BLF button,
the system reserves the LED indication for BLF
indication. On LCD speakerphones that are recipients
of call forwarding, the display will indicate the
extension number or station name for the station from
which an intercom call was forwarded.
Call Forwarding - Personal
Call forwarding of personal calls allows a station user
to designate another station number (or the attendant
station number) to be the recipient of intercom and
prime line calls normally directed to that user’s station.
For each intercom call received while call forward is
enabled, a ring reminder (short tone burst) will be
sounded at the forwarding station to remind the user
that his or her calls are being forwarded. On LCD
speakerphones that are recipients of call forwarding,
the display will indicate the extension number or
station name for the station from which an intercom
call was forwarded,.
.
Call Park
Refer to the discussiontitled Hold.
Call Pickup
Directed Call Pickup
A station user can dial a code, followed by the
extension number of a ringing station, to answer the
ringing call.
Group Call Pickup
If a call rings to any station in a pre-programmed
group and another user in the group wishes to answerthe call, that user may dial the group pickup code and
answer the call. Four different groups can exist with
any number of stations in a group. Overlap is provided
by allowing stations to be in more than one group thus
enabling those stations to pick up for stations in more
than one group. The programmer must place the
system stations in logical answering groups by group
them together using the station class of service
programming.
Call Transfer
Screened Call Transfer
Screened call transfer allows station users to transfer
outside calls from one station to another, via the
intercom link, in one of two ways. If both stations have
access to 
the.line., a user effects a common line pickup
transfer. If the other station does not have access to
the incoming line, the user uses the
transfer/conference button to effect the transfer. For a
screened transfer, the transferring user precedes the
transfer with an announcement to the party that is to
receive the transferred call.
Unscreened Call Transfer
A user can transfer a call to anotherstation without
first announcing it. The transferred call will camp-on to
the other station where it will ring and await an
answer. The call will automatically ring back to the
transferring station after a programmable recall period.
There is no limit as to how many calls users can
camp-on to another station. A transferred call will only
ring if the station is idle. If the station is busy, the call
will wait until it is idle before it rings. The programmer
can use the system class of service programming to
set the recall time for an unanswered transferred call.
Unanswered Call Transfer Recall Timing
A transferred call that is unanswered after a
pre-programmed length of time will return to the
station that transferred it. The system will return the
call to both attendant stations when the tandem
attendant feature is enabled. When LCD
speakerphones are employed, the display will show
the station number or name as well as the line number
that is being recalled. The system class of service
programming determines the recall time for an
unanswered call transfer.
Call Waiting Tone
A telephone user can signal a busy station with the
call waiting tone to indicate that he or she wishes to
contact them. Users dial a special code to activate the
call waiting tone.2-5 
						

							Description Cf System FeaturesIMl66-107
Caller Identification (ID) Service Support
The central office sends caller ID data along lines that
it has assigned to the Caller ID service. Caller ID
information is displayed at a system LCD
speakerphone only if the programmer assigns it to the
Caller ID service, and then only for those Caller ID
lines that are assigned to that station and arranged to
perform as follows:l ring audibly
l
can be answered by user pressing button for the
ringing line
are transferred to the station
fhe station receives Caller ID data for a call between
the first and second rings. A programmer can enable
the first ring for a line assigned to Caller ID to be either
audible or silent. Selecting the “silent” option insures
that the Caller ID data is displayed prior to ringing,
which nearly eliminates the loss of Caller ID data due
to premature answering.
Station users may automatically retrieve and dial the
last Caller ID number displayed at a station by using a
preprogrammed SAVE recovery button. Because the
programmer can store the local area code and up to
100 
6-digit area code and local office codes, ten-digit
Caller ID numbers can automatically be transformed
into a format that can be dialed (seven-, eight-, and
eleven-digit Caller ID numbers are already in a format
that can be dialed and do not need to be transformed).The system will dial those numbers that are present in
the 
6-digit table as local calls even if they are in
different area codes.
All Caller ID features require that the Caller ID decoder
device (product code 
CID08) deliver Caller ID data to
the system’s RS-232 data port B. The programmer
must configure this port to match the output of the
Caller ID decoder device. The recommended
configuration is 9600 baud, with eight data bits and
one stop bit. He or she must use VDT programming
to do this.
Caller ID distribution is in the form of messages which
specify the Caller ID data for lines with incoming calls,
and identify the stations answering such lines. The
data is in the ASCII format and is suitable for use with
PC-based application programs.
Calling Station Identification On BLF
If a user has stored the station number of a calling
station into the direct station select/busy lamp field
(DSWBLF) of his or her station, the flashing of the
corresponding BLF light will identity the caller. The
BLF lights also indicate the status of 
the.DSS
telephone using the department pilot number.
Class Of Service Pro
(From Main Sta
9ramming
ion)
Refer to the discussion titled Class of Service.2-6 
						

							Class Of Service
Block Programming
A programmer can assign a particular line or station’s
class of service to an entire block of lines or stations
with one programming action. This feature eliminates
the need for him or her to individually program stations
and lines with the same class of service. A
programmer can perform a block programming class
of service after he or she has programmed a station
class of service or line class of service for a particular
station or line.
Class Of Service Programming (From Main Station)
Class of service (COS) programming is used by the
installer/programmer to configure and assign all
system, line, station, and special purpose operating
features. The installer/programmer enters COS
programming by dialing an access code over the
intercom line. System administrators can enter COS
programming with another code to reprogram any
system, station, or special purpose operating feature
that may require change at a later date. Line
reprogramming ability is not available through system
administration programming. The system attendant
can reprogram certain system-wide features that
require periodic change by entering COS
programming with another code provided for this
purpose. The station user can program individual
stations for speed dial, 
autodial and direct station
selection (DSS) by entering COS with a code provided
for that purpose. Thus, COS programming is arranged
with a hierarchical order from the 
highest(the
installer/programmer) to the lowest (the station user)
level with a higher level programmer having the ability
to do anything a lower level programmer can do
without exiting a current programming mode.
However, only the station user can program the speed
dial and 
autodial locations at a telephone.
All class of service (COS) programming is performed
from station 10 or 12. Any station and console
combination will function in this mode and provide
visual feedback with the LED associated with the
programming button. By employing an LCD
speakerphone, however, the programmer will have the
benefit of display prompts and verifications to simplify
and clarify the programming procedures. Class of
service programming access is as follows:
Flexible Station And Line Class Of Service Control
The extension number of a station and all other
programmable attributes that are initially assigned to a
particular station port and the line, along with all
programmable line attributes that are initially
connected to a particular line port can be re-assigned
to a different port through programming action. This
feature allows adds, moves, and changes without
IMl66-107
Description Of System Features
re-locating the station and line wiring. A programmer
can use line and station class of service programming
are used to reassign stations and lines.
Class Of Service Programming (Video Display Terminal)
A programmer can use an asynchronous, serial data
terminal with an 
W-232 interface to effect class of
service programming through menu-driven
procedures. VDT programming provides a
menu-driven approach to programming that is
discussed in Chapter 4.
Class Of Service Program Printout
The common equipment provides serial data ports that
the installer can use to interface an RS-232
compatible, asynchronous serial data printer to the
system. The connected.printer will provide a printout
of class of service and toll restriction records. The
programmer can use the data printer service class of
service programming procedure to specify the nature
and extent of each requested printout. He or she can
use the system class of service programming to
specify the bit-length and baud rate of the data.
Default Functional Program
At initial power-up, the system sets the operating
features to a specific group of operating conditions
(default conditions). The default conditions provide a
complete operating system for normal use. The
installer can leave the system defaulted or reprogram
as desired. After a programmer has reprogrammed a
system, he or she can re-default it by using the
system, line, and station class of service programming
or use a master clear to default the entire system and
erase all stored programmable button information.
,
Remote Programming And Administration
Both remote class of service programming and the
transmission of SMDR data for printing are available
through serial data ports. The system supports X-on
X-off terminal control codes as well as a DTR signal
for handshaking. The system data communications
operates per the popular XMODEM protocol. The
database can be uploaded or downloaded, error free,
from or to a remote computer that is running software
that supports the XMODEM protocol. The two serial
data ports allow VDT programming (either local or
remote) to be conducted through one port at the same
time that the other port is being used to send SMDR
data for printing. VDT programming of the system is
menu driven.Common Audible
Ringer Interface
Refer to the discussion titled Ringing.2-7 
						

							Description Of System FeatureslM166-107
Conferencing
Add-On Conferencing
With this feature, a user at a station that is operating in
a private mode can add up to four other stations to an
outside call.
Multiline Conferencing
This feature will allow one station to access up to four
outside lines at the same time resulting in a
conference arrangement. The user employs the
transfer/conference button to effect the conference.
Unsupervised Conferencing
After a user has established a conference between an
internal party and a maximum of two external parties,
this feature allows the internal party to drop out of the
conference by dialing a special code. The conference
between the two outside parties continues in an
unsupervised condition.
Console Support
Beginning with software release 8, the digital
telephone system supports the installation and use of
a DigiTech 
DD32X and an Americom XD64X
DSSIBLF console at any available station port. With
software release 
12A, console support is extended to
include the 
lmpacr IB64X console as well. The
number of installed consoles is limited only by 
port
availability; however, since a console complements a
companion telephone located in an adjacent station
port, the installer can use up to one-half of the
available station ports for consoles. In addition with the
dual console feature (discussed later), a full two-thirds
of the total station port capacity is available for console
use.
Beginning with software revision of 9, an installer can
assign two consoles to one telephone. This feature is
especially useful when used with DigiTech 
DD32X
consoles and a G1832 system that has one or two
GM408 expansion modules included with it. This 
dual
console feature allows a station user to monitor up to
48 stations from one station location using 
32-button
consoles.
An installer can install the first console at the station
port that is logic-paired with the station that he or she
wishes to complement. An installer can install the
second console at any station port except 10 or 11
and, use class of service programming to assign it to
the same station port that is logic-paired with the first
console.
An installer can install a 
DD32X, XD64X, or IB64X
console at any station port and assign it to a station
without first installing a console at the station’s
logic-paired port. This configuration is convenient for
adding a console to an existing telephone installation2-8
that already has its logic-paired port occupied;
however, one must not this configuration for assigning
a console to station ports 10 and 12 because the
console buttons will not be usable for programming.
As discussed above, this feature is also useful for
adding a second console to a station that already has
a paired console installed with it.
The digital telephone system automatically recognizes
a console when its connected to a station port and
automatically assigns station intercom numbers to the
console buttons for direct station selection (DSS)
.
purposes with associated busy lamp field (BLF) status
lights. However, the console buttons are fully
programmable and the station user can customize
them as he or she see fit by programming them as
DSS buttons or as automatic dialing (autodial) buttons.
When the user programs the buttons for DSS use,
autodial capability is also available at a secondary
level at each DSS button. All 32 buttons on the 
DD32X
console and the first 48 buttons on the 
XD64X and
IB64X are programmable for DSS and/or autodial use.
While the first 
XD32X console (the one installed at the
logic-paired port) extends the 
autodial buttons of the
paired telephone by 32 and provides 
DSS/SLF
coverage for station ports 10 through 41, the second
XD32X console (the one installed at the programmed
station port) provides 
DSSIBLF coverage as follows:l
On a 32-station system with two 8-station
expansion modules, the first 16 buttons are
automatically assigned (defaulted) to station ports
42 through 57 for DSS purposes.l
On a 32-station system with one 8-station
expansion module, the first 8 buttons are
automatically assigned (defaulted) to station ports
42 through 49 for DSS purposes.l
On any other smaller station capacity system, all
buttons are unassigned.
When an installer installs a console and programs it to
complement a telephone without first having a console
installed at a port that is logic-paired to that telephone,
its button assignment is automatically defaulted, as
described above, but the user can reprogram it as
required. It is important to remember that when a
programmer programs for a second console, the
system sets the console button mapping to that which
is described above. When a programmer clear the
assignment, the system resets the button mapping to
match a logic-paired console. This means that when
the second console feature is cleared, the console
installed at that port complements the telephone that is
installed at its logic-paired port instead of the
telephone that is located at the program designated
port, and its buttons are automatically reassigned to
stations 10 through 41 (through station port 57 with
1864X and XD64X consoles). 
						

							Console Support - continued
In addition to the DSS support that the consoles
provide to the telephone, the first 
DD32X console
provides COS programming buttons Cl0 through C41
and the second console provides COS programming
buttons C42 through C57 when they are needed. You
will not need the second 
IB64X or XD64X consoles for
programming purposes since the first one provides
complete program button coverage.
Data Security
This data security feature will prevent any type of tone
(DTMF, camp-on, barge-in, etc.) from interrupting a
call that is active on a port programmed with the
feature. This prevents interference to non-voice
communications from occurring when the port is being
used as a data port (when operating a modem through
an 
ATI-D port for, example). The programmer can use
station class of service programming to enable a data
security port.
Default Functional Program
Refer to the discussion titled Class of Service.
Default Toll Restriction
Refer to the discussion titled Toll Restriction.
Delayed Ringing
Refer to the discussion titled Ringing.
Departmental Callii;oktribution (DCD)
Refer to the discussion titled Direct Department
Calling With Departmental Call Distribution (DCD).
Designated Programmable Buttons
Designated programmable buttons are those that the
programmer assigns to a station using the button
mapping procedures that are a part of station class of
service programming. These buttons provide
one-button access to a broad range of features. While
the programmer must assign most designated buttons,
the station users can assign the auto redial button and
the response message button themselves.
Dial 0 For System Attendant
The system attendant station (station 10) is signalled
whenever anyone dials the digit 0 on the intercom line.
Direct Department Calling With
Departmental Call Distribution (DCD)
The system enhances direct department calling with
departmental call distribution (DCD) and provides a
means by which outside lines can be assigned to one
of four different departments. Calls received on
IMl66-107
Description Of System Features
department lines and calls that are transferred to a
department from within the system search for an idle
station in that department. The system distributes
department calls evenly throughout the department
stations for answering with individual stations having
the ability to be taken out of service as necessary.
The system places calls received on department lines
and calls that are transferred to a department from
within the system in a queue for servicing.
It assigns
new calls, transferred calls, and held calls a time
stamp so that they will be serviced in the order of their
arrival.
The system allows up to four departments and allows
up to 16 stations (plus one overflow station) in each
one. The programmer can assign a station to more
than one-department, if desired.. Since the
,
programmer can assign a station to more than one
department, she or he can add the attendant station to
serve as the overflow station for all departments if
desired. The programmer can assign separate pilot
numbers (extension numbers) to each department that
the users can use for making intercom calls or doing
call transfers to the department.
The direct department calling feature requires that the
programmer assign lines and stations to a department.
It does not require that he or she assign department
lines to appear at buttons on department stations. If a
site requires that a particular department line must
appear at a particular department station, the
programmer can assign it; however, the programmer
must ensure that neither direct nor delayed ringing is
enabled for that line at that station.
An incoming call searches for the first station 
availabte
to answer a call.If all stations in a department are
busy or ring with no answer (RNA call), the call will go
to the overflow station in that department (if one has
been programmed). If there is no overflow station
programmed, the call continues to try the department
stations until it is answered or dropped by the caller.
The caller continues to receive 
ringback tone until the
call is answered. The overflow station can service the
call or transfer it back to the department using the
department pilot number. When the call is transferred
back to the department by an overflow station, it will
not return to the overflow station until that station is
idle and has no ringing calls either new or transferred.
Instead, the call will camp-on at the department and
wait for a station to become idle. The caller will
receive music while on hold if the system is so
equipped. 
To provide reassurance to the caller during
ringing it is recommended that a music source be
connected to the system. The call will remain in a held
state until it is answered or until the department
transfer recall timeout period has ended.2-9 
						

							Description Of System FeatureslMl66-107
Direct Department Calling With Departmental Call
Distribution (DCD) - continued
When the recall timeout period has ended, the call will
return to the transferring station.
Intercom calls that are made to the department will
test the department stations for busy or a RNA.If all
stations are busy, a busy tone is returned to the caller.
Intercom calls will not camp-on at the department but
will go to the overflow station. Further, the system
camp-on feature cannot be used to camp-on to a
department.The station user sets the wrap-up mode by pressing
SHIFT DND and presses these buttons again 
to clear
the wrap-up mode.
Subsequent calls to a department on a particular line
always try the next station in the department from
whichever station serviced the last call on that line.It should be noted that the departments formed for use
with this direct department calling feature are different
from those departments used in SMDA reporting.
Assign department transfer recall time (unanswered
call transfer recall time feature) using the system class
of service programming. Assign lines for direct
department calling using the line class of service
programming. Assign department stations, access
codes to departments (flexible numbering feature),
and 
busy/RNA timeout (call forward - busy feature)
using the station class of service programming.
To understand this, assume a department with
stations 15, 16, and 12 assigned as department
members 
1,2, and 3. Further assume lines 1,2, and
3 are programmed to ring in this department. To
create a randomizing effect, the system tracks for
each line which department member 
(1,2, or 3)
serviced it last. When the next call arrives on line 
1,
for instance, the system makes a search for the next
idle department member after the last one that
serviced a call on line 1. Since there are several lines
assigned to the department and conversation times
and wrap-up times vary, a natural random distribution
of calls on lines 
1,2, and 3 at stations 15, 16, and 12
will occur. Further, since the system is keeping track
on a per line basis of the servicing stations as
department members instead of station numbers, the
programmer could rearrange the department list
without having any effect on call distribution. As the
programmer adds more stations to a department, the
randomizing effect improves.
Departmental Calling Distribution (DCD) Report
The attendant station can request a Departmental
Calling Distribution (DCD) report that provides a
compilation of department call activity. The statistics
that are reported are based on the department
assignments that are active at the time of the report
and are extracted from the SMDR records collected by
the system. For a report to be generated, a
department must exist. All calls that are included in
the DCD report, must meet the following conditions
before they are reported as department calls:l
They must be incoming calls. Outgoing calls are
not reported in the DCD report.l
The port number of the line which received the call
must be one that is assigned to a department.l
The port number of the station which answered
the call must be assigned to a department.
Since the RNA time of a station is a programmable
feature, department stations can be set to have a
short RNA time to allow a call to search rapidly
through a department for an answer.
When an outside or transferred call is ringing at a
department station, the station user can press the
pre-programmed Do Not Disturb (DND) button to
place the station in an off-duty condition. While
off-duty, all outside and transferred calls skip to the
next department station. This off-duty condition
remains set until the DND button is pressed again to
place the station back in service. When the overflow
station is set to DND, all incoming and transferred
calls will return to the department queue.
A department station can also be taken out of service
and placed in a wrap-up mode to provide the user time
for doing such things as follow-up paperwork. While a
station is in a wrap-up mode, all outside and
transferred calls skip to the next department station.A DCD report consists of the following columns of
’
information:
Station Number: The station name or extension
number of the station being reported.
Idle Time: The amount of time that the station is
on-hook and available to answer a call.
Dept. Calls: The amount of time spent on incoming
calls that rang into the department and calls that
were transferred to the department.
Hold lime: The amount of time that department
calls spent in an on-hold state at a particular station.
Avg. Dept. Calls: The average time per call
(including on-hold 
time)that a station spent on a call.
Wrap-Up Time: The time that a station spent in a
wrap-up mode doing such things as follow-up
paperwork. While a station is in a wrap-up mode, it
does not receive department calls. The station user
sets a wrap-up mode by pressing SHIFT DND and
repeats the procedure to clear the wrap-up mode.2-10 
						

							IMl66-107Description Of System Features
Direct Department Calling With Departmental Call
Distribution (DCD) - continued
Missed Calls: 
The total number of calls that are not
answered at a station and that are cycled by the
system to another station for answering.
Other Calls: This is a summation of the time spent
on outgoing call activity, incoming call activity on
non-department lines, plus all intercom call activity.
On-Duty Time: The on-duty time includes a
summation of idle time, department call time,
wrap-up time, and other call time.
Off-Duty Time: The time that a station spent in a do
not disturb mode. While in a do-not-disturb
condition, a station is not available to receive calls.
The station user sets a do-not-disturb mode by
pressing DND and repeats the procedure to clear
the do not disturb mode.
Unanswered Calls: Total number of calls that went
unanswered at a department.
Calls Answered After 36 Seconds: Total number
of calls that waited at least 36 seconds
(approximately six rings from the CO) before being
answered.
Calls Handled By Overflow Station: Total number
of calls that were answered and transferred by the
overflow station and then answered and serviced by
another station.
Calls Terminated At Overflow Station: Total
number of calls that were received by the overflow
station and were either answered but not
transferred or were dropped by the caller before
being answered.
Direct Inward Station Dialing (DISD)
The DISD feature allows an external party to call an
intercom station directly without assistance by the
attendant. The 
DISD call must be received on a line
which has been specially programmed to allow this
feature. Any line can be programmed to be a 
DISD
line for both the normal mode of operation and the
night transfer (of ringing) mode of operation.
The number of rings which occurs on a 
DISD line
before it is answered is programmable. By setting a
large number of rings, time is allowed for a call to be
serviced in a regular manner by stations that have a
line appearance for the 
DISD line. Setting the number
of rings to 0 disables the line for 
DISD use.If a line is
to be dedicated for 
DISD use, it is a good practice to
set it for one ring. The amount of time allowed for anextension number to be dialed is programmable and a
DISD assist station can be programmed to answer
calls that are not completed during this dial time limit.
When a 
DISD line is called, it rings for a programmed
number of rings. If the call is not answered in a
normal manner by a station with the line appearance
during this time, the system answers it and presents a
DISD dial tone to the caller. The system then waits for
an extension number to be dialed from the calling
telephone. Only one 
DISD line is serviced at a time;
therefore, an incoming call could ring for more than the
programmed number of rings if a 
DISD call is being
serviced when a second 
DISD call is received.
When a valid extension number is dialed, a
confirmation tone is sounded, the system attempts a
transfer, and thecalled station rings if it is idle. If a
called station does not answer within the transfer
recall timeout period, the call is returned to 
DISD dial
tone. If the called station has the call forward feature
set, the forwarded station rings. If a called station is
busy, the call is placed on hold and camped-on at the
busy station. If the camp-on is not answered within
the transfer recall timeout period, a busy tone is given
followed by 
DISD dial tone. The system will return the
caller to 
DISD dial tone two additional times and then
drop the line (a total of three attempts are made).
NOTE: 
If the busy called station is part of a hunt
group, the DISD call is routed to an idle station in the
hunt group.If no idle stations are found, the call is
camped-on at the dialed station.The hunt group is not
followed in the case of a ring-no-answer (RNA).
If an invalid extension number is dialed, an error tone
is sounded before the 
DISD dial tone is returned. If a
mistake in dialing is made, the caller can dial a 
#+ for ‘a
new 
DISD dial tone. The system will return the caller
to 
DISD dial tone two additional times and then drop
the line. If extension number dialing is not completed
within the programmed dial time limit, the call is routed
to the 
DISD assist station if one is programmed;
otherwise, the line is dropped. If the assist station is
busy (call will camp-on at the assist station) or if the
assist station does not answer before the transfer
recall timeout period, the system will return the caller
to 
DISD dial tone. If extension number dialing is not
completed within the dial time limit this time, the line is
dropped.
The installer should connect a music source to the
system so the music can provide a reassurance to the
caller during a camp-on situation when the 
DISD
feature is being used.2-11 
						

							Direct Station Call Hold (Station Park)
This feature allows a station user to park a call at a
specific station where it will be held without ringing. A
feature code plus a station extension number can be
dialed over the intercom line to park the call or a
programmable button can be programmed to provide a
“directed hold” to a specific station. The parked call is
picked up by directed station by dialing a feature code.
It can be picked up at any station through the use of
the call pickup feature. No class of service is required.
Also refer to the discussions titled 
Call Pick-Up -
Directed and Call Park.
Direct Station Selection (DSS)
Programmable
Refer to the discussion titled Programmable DSSBLF.
Distinctive Ringing
Refer to the discussion titled Ringing.
Do Not Disturb
Any station can be set to a do-not-disturb mode (DND)
using the designated DND programmable button and
associated indicator (indicator will light when DND is
active). While in the DND mode, the station will not
ring on any incoming call nor will it accept an intercom
call. A party making an intercom call to a station set in
the do-not-disturb mode hears a fast busy tone. The
feature cannot be overridden by the calling party
unless the override feature is enabled. The DND
feature is used with the departmental calling feature to
provide a station wrap-up mode and a station off-duty
mode.
Do Not Disturb Inhibit
The system can be programmed to inhibit any station
from entering the DND mode. System class of service
programming is used to program this feature.
Do Not Disturb Override
Stations can be provided with DND override capability
which will allow them to call a station that is set in the
DND mode. The Executive/Attendant Override feature
must also be active for DND override feature to
function. Station class of service programming is used
to assign this feature.
Dual Console Support
Refer to the discussion titled Console Support.
Dual Intercom
Refer to the discussion titled Intercom.
Dynamic Line Buttons
Through class of service programming, the
programmer can arrange certain idle line buttons to
serve as dynamic line buttons. This feature allows the
system to temporarily assign a line to a station thatDescription Of System Features
IMl66-107
normally does not have the line assigned to it, and
have that line appear on a dynamic line button. While
the call is appearing on the dynamic line button (LED
on), any normal call handling operations can be
performed. Station class of service programming
allows certain buttons to be programmed as dynamic
line buttons
End-To-End Signalling
End-To-End Signalling On Intercom
After an intercom call has been established with an
ATI-D port, the system can continue to send dialing
signals (DTMF tones) through the intercom path. This
feature can be performed from every station in the
system, and is used by peripherals such as voice mail
equipment.
End-To-End Signalling On Lines
After an outside call has been established, the system
can continue to send dialing signals (DTMF tones)
through the 
telco network and have them received at
the distant end for inward call completion (bank by
phone, etc.). This conventional, off-hook dialing
feature can be performed from every station in the
system.
Exclusive Hold
Refer to the discussion titled Hold.
Exclusive Hold System-WideEnable/Disable
Refer to the discussion titled Hold.
Executive/Attendant Override
This feature allows the user of a station, upon’
encountering a busy signal at another station, to dial a
code that will override the busy signal of a call, sound
a warning tone, and allow access to the existing
conversation. This feature is enabled through station
class of service programming.
External Paging Interface
Refer to the discussion titled Paging.
Feature Inhibit
A large array of individual features can be disabled
system-wide to provide a basic telephone system. A
basic telephone system is useful for installation
environments where a large proportion of the stations
are accessible to unauthorized users thus subject to
tampering or for environments where station users
must be limited as to the variety of features allowed to
them. Features are disabled by system class of
service. Once disabled, they can enabled by turning
on all features at once using the system default
programming.2-12