Comdial DIGITECH Digital Telephone System Instructions Manual

							be effected. If the other station does not have access
to the incoming line, transfer can still take place using
the system transfer feature. For a screened transfer,
a call is transferred to another station 
with a
pre-transfer announcement by the transferring patty.
Transferring calls is accomplished with the
TRANSCONF button. Also refer to the discussion
titled: 
Call Transfer- Unscreened.
CALL TRANSFER - UNSCREENED,
An active call can be transferred to another station
without being announced. 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 can be
camped onto another station. A transferred call will
only ring if the station is idle. The system class of
service programming determines the recall time for an
unanswered transferred call.CALL WAITING TONE
The call waiting tone may be signalled to a busy
station to indicate that another station or the attendant
wants to contact the busy station. A special code is
dialed to activate the tone.CALLING STATION
IDENTIFICATION ON BLF
If the station number of a calling station has been
programmed into the direct station select/busy lamp
field (DSS/BLF) of a called station, the caller will be
identified by flashing at the corresponding BLF light.
The lights also indicate the status of the DSS
telephones: dark = idle, steady-on 
= in use, flash =
calling (or ringing when station monitoring is enabled),
and flutter = call back request (if feature is available.
No class of service programming is required for this
feature. Also refer to the discussions titled:
Programmable 
DSS/BL F and Call Messaging.CLASS OF SERVICE PROGRAMMING
(FROM MAIN STATION)
Class of service (COS) programming is used by the
installer to configure and assign all system, line,
station, and special purpose operating features. The
installer 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 
abifiiy 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
IMI 66-083Description Of System Feat1 P
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) to the lowest (the
station user) level 
wfth 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
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:l
Installer dials: ITCM % # 7 4 6 +Kl
Administrator dials: ITCM +++ # 2 3 6 +I+l
Attendant dials: ITCM % # 0l
User dials: ITCM +# +
Class of service programming can be performed using
instructions provided in Chapter 4, Sections 
2,3 and 4.CLASS OF SERVICE PROGRAMMING
(VIDEO DISPLAY TERMINAL)
An asynchronous, serial data terminal with an RS-232
interface can be used to effect class of service
programming through menu-driven procedures. VDT
programming provides a menu-driven approach to
programming as discussed in Chapter 4, Section 5.
CLASS OF SERVICE
PROGRAM PRINTOUT
Connection terminals are provided 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 data prlnter service class of service programming
determines the nature and extent of each requested
printout. The system class of service programming
specifies the bit-length and baud rate of the data.COMMON AUDIBLE
RINGER INTERFACE
Connections are available at the wmmon equipment
that provides “dry-contact” relay closures whenever an
incoming line rings. These contact closures track the
ringing pattern and can be used to control an external2-5 
						

							8.
__, ,,.rtion Of System FeatureslMl66-083CONFERENCING 
- ADD-ON
With this feature, a station, operating in a private mode,
can add up to four other stations to an outside call.CONFERENCING 
- MULTILINE
This feature will allow one station to access up to four
outside lines at the same time resulting in a conference
arrangement. Conferencing is established through the
use of the 
TRANSKONF button.,
CONFERENCING - UNSUPERVISED
After a conference between an internal party and a
maximum of two external parties has been
established, 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.Also refer to
the discussion titled: 
Conferencing - Multiline.
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 OPX port for, example).Use station class of service
programming to enable a data security port.DEFAULT FUNCTIONAL PROGRAM
At initial power-up of the system, the operating features
are set to a specific group of operating conditions
(defautt conditions). The defautt conditions provide a
complete operating system for normal use. 
tt can be
left as a 
defautted system or reprogrammed as
desired. Defauft conditions can be reset if desired. A
system can be defaufted by system, line, and station
class of service programming. A master clear will
defauft the entire system and erase all stored
programmable button information.
DEFAULT TOLL RESTRICTION
Two toll restriction tables are defaulted with
pre-programmed values and are pre-assigned to all
lines. The tables need only be assigned to the 
stations
by programming action to put them into effect. The
defaulted tables can be reprogrammed with different
information using the normal programming procedure.
Assign toll tables to stations using station class Of
service programming. Reprogram toll tables using toll
restriction table configuration class of 
service
programming.
DELAYED RINGING
Pinging assignments are programmable. A station can
be programmed to provide delayed ringing on some
lines while providing immediate ringing on other lines.
Delayed ringing is assigned to certain lines at each
station through station class of service programming.
DEPARTMENTAL CALLINGDISTRIBUTION REPORT
The attendant station can request a Departmental
Calling Distribution (DCD) report. 
The DCD report will
provide 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:
They must be incoming calls. Outgoing calls are
not reported in the DCD report.
The port number of the line which received the
call must be one that is assigned to a department.
The port number of the station which answered
the call must be assigned to a department.
l A DCD report consists of the following columns
of information:
Station Number: The station name or extension
number of the station being reported.
Idle Tlme: 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 Time: 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.
WrapUpTIme: 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.
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 answering2-6 
						

							lMl66-083Description Of System Feat.
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-notdisturb
condition, a station is not available 
tc 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.
UnansweredCalls: 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.
Also refer to the discussion titled:Direct Department
Calling with Departments Call Distribution (DCD).
DESIGNAT;;tIK?d&AMMABLE
Station programmable buttons can be assigned to
provide one-button access to a broad range of
features. There are designated buttons that must be
assigned at each station using station class of 
service
programming but the auto rediai button and response
message button are designated programmable
buttons that can assigned by the station user.DIAL 0 FOR SYSTEM Al-l-ENDANT
The system attendant station (station 10) is signalled
whenever the digit 0 is dialed on the intercom line.
DIRECT DEPARTMENT CALLINGWITH DEPARTMENTAL CALL
DISTRIBUTION (DCD)
Direct department calling has been enhanced wtth
departmental call distribution (DCD) and provides a
means by which outside lines can be assigned to one
of four different departments. Calls received on
department lines and calls that are transferred to a
department from within the system search for an idle
station in that department. Department calls are
distributed evenly throughout the department stationsfor answering with individual stations having the ability
to be taken out of service as necessary. Calls received
on department lines and calls that are transferred to a
department from within the system are placed in a
queue for servicing. New calls, transferred calls, and
held calls are all assigned a time stamp by the system
so that they will be serviced in the order of their arrival.
Up to four departments can be formed with up to 16
stations (plus one overflow station) allowed in each
one. A station can be assigned to more than one
department, if desired. Since a station can be
assigned to more than one department, the attendant
station can be added to serve as the overflow station
for all departments if desired. Separate pilot numbers
(extension numbers) can be assigned to each
department to be used for making intercom calls or
doing call transfers to the department.
The direct department calling feature requires that lines
and stations be assigned to a department. It does not
require that department lines be assigned to to appear
at buttons on department stations. If direct line
appearance of a particular department line to a
particular department station is required, it can be
assigned. If this assignment is made, ensure that
neither direct nor delayed ringing is enabled for that
line at that station.
An incoming call searches for the first station available
to answer a call. 
lf all stations in a department are
busy or are ring no-answer (RNA), the call will go to
the overflow station in that department (if one has been
programmed). 
lf there is no overflow station
programmed, the call continues to try the department
stations until 
tt 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 
campon at the department and
walt 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. 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 RNAIf 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. 
						

							,&Ion Of System FeatureslMl66-083
Further, the system camp-on feature cannot be used
to camp-on to a department.
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.
This means that if department stations 15 and 16 are
programmed to answer line 
1, and station 15 services
a call, the next line 1 call will ring at station 16. When
both stations 15 and 16 are programmed to answer
lines 1, 2 and 3, call delivery is on a per line basis: If
station 15 handles and completes calls on line 2 and 3
while station 16 is still on line 
1, the next calls on line 2
or 3 goes to station 15 even if station 16 has become
idle.
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 
offduty 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.
The station user sets the wrapup mode by pressing
SHIFT DND and presses these buttons again to clear
the wrap-up mode.
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. Also refer to
the discussion titled: Departmental 
Calling Distribution
Report.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 
tt 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, tt is a good practice to
set 
ft for one ring. The amount of time allowed for an
extension 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 
s;:stem 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 the called 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 
fonnrard feature set, the
forwarded station rings. 
lf a called station is busy, the
call is placed on hold and camped-on at the busy
station. 
ff the camp-cm 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:lf the busy called station is part of a hunt group,
the 
DISD call is muted to an idle station in the hunt
group.
lf no idle stations are found, the call is
catqoed-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 S 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 
						

							lM166-083Description Of System Feats
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 
lf 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.
It is recommended that a music source be connected
to the system to provide a reassurance to the caller
during a camp-on situation when the 
DISD feature is
being used.DIRECT STATION CALL
HOLD (STATION PARK)
This feature allows a station user to park a call at a
specific station where 
lt 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
Pickup - Directed and Call Park.DIRECT STATION SELECTION (DSS)
PROGRAMMABLE
Refer to the discussion titled: ProgrammableDSSlBLF.DISTINCTIVE RINGING
The ringing cadence of an incoming call is the same as
the ringing cadence of 
theTELC0, PBX, or CENTREX
system. The ringing cadence of an intercom call
presents two tone bursts sounded every four seconds.
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-notdisturb 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.
Refer to the discussions 
tftled: Do Not Disturb
Override, 
Executive/AttendantOvertide, and
Departmental Calling Distribution Report.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. Also refer to the discussions
titled: Do Not Disturb and Executive/Attendant
Override.
DUAL INTERCOM
This feature provides for two separate intercom lines at
the same station. One intercom line is fixed and is
accessed with the 
ITCM button. The other intercom
line is programmable and is accessed by a
programmable button selected for that purpose by
class of service programming. Calls are handled on
the intercom lines in much the same manner as
outside calls are handled using the line buttons.
Special considerations are as follows:
Distant party hang-up causes intercom link to drop.
Intercom call to station already busy on intercom
rings in subdued fashion and flashes indicator
associated with other intercom button.
With both intercom lines busy, a third intercom call
resufts in a secure off-hook voice announce (if
enabled) at busy station.
Pressing a DSS button while on an active intercom
call will drop the distant party unless the automatic.
hold feature is enabled for the intercom line
through class of service programming. The hold
button can be used, however, to place an intercom
call on hold before selecting the other intercom
line for use.
Any action taken on the intercom by a station
being observed via the service observing feature
will cause the observing station to return to an idle
state.
The station class of service button mapping procedure
assigns a programmable button to 
serve as the second
intercom button.DYNAMIC LINE 
BUlTONS
Through class of service programming, certain idle line
buttons can be arranged to serve as dynamic line
buttons. This feature allows the system to temporarily
assign a line to a station that 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 
						

							..tron Of System FeatureslMl66-083
line class of service programming arranges a line port
for external paging interface. operations can be performed. Station class of service
programming allows certain buttons to be
programmed as dynamic line buttons
FEATURE INHIBIT
END-TO-END 
SIGNALLINGON INTERCOM
After an intercom call has been established, 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 iss
used by peripherals such as voice mail equipment.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. 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
Exclusive hold prohibits a held call from being
retrieved by any other station. The exclusive hold
condition also links the held call to the timed hold
recall timeout feature. After timeout, audible and visual
signalling will occur and the exclusive hold condition
will revert to a normal line hold condition.EXCLUSIVE HOLD SYSTEM-WIDE
ENABLE/DISABLE
This feature allow systems that do not require
exclusive hold capability to have it turned off
system-wide through programming. System class of
service programming is used to enable or disable
exclusive 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
A dedicated paging port or a spare line port can be
interfaced 
with an external paging amplifier. The
paging amplifier can then be dial-accessed by stationsin the system.
DTMF tones can be dialed through the
line port to provide zone selection 
if provided by the
external paging amplifier. The dedicated paging 
port
does not support any “talk-back’ capability even if such
a feature is provided by the external equipment. TheFLEXIBLE RINGING ASSIGNMENTS
Ringing assignments are programmable on a per
station/per line basis. Pinging can be controlled for
every line that has an appearance at each station.
Delayed ringing is assigned to certain lines at each
station through station class of service programming.
Refer to the paragraph titled: Delayed Ringing.
FLEXIBLE RINGINGASSIGNMENTS OF PA PORT
The PA port can be programmed for flexible ringing
assignments and zone pages. Any desired lines can
be programmed for direct ring, delay ring, or night
transfer (of ringing) at this port. Paging can be to
programmed zone or to 
allcall. A speaker can be
connected to the PA port to sound the ringing that is
generated by the system and sent to this port and
paging announcements when they are sent to the
programmed zone. Using such an arrangement, it is 
’
possible for a user to determine that certain lines are
ringing, such as in a night transfer (of ringing) mode,
and go to the nearest telephone and answer the call.
The most common use for this arrangement is as a
night bell eliminating the need for external equipment
as required with the common ringer and auxiliary
ringer interface. The speaker cannot be used for voice
response as the path is one-way only. Use system
class of service programming to assign ringing and
paging to a PA port.
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 without2-10 
						

							re-locating the station and line wiring. Line and station
class of service programming are used to reassign
stations and lines. Also refer to the discussion titled,
Auxiliary Ringer Interface.
FLEXIBLE STATION NUMBERING PLAN
The system supports a flexible station numbering plan
for individual stations. Each station can be
programmed to respond to the dialing of any available
number between 10 and 7999. This feature may be
used to match the calling number of a station located
in a pre-numbered area to that area number. A
combination of two, three, or four digit extension
numbers can be assigned as long as they do not
conflict. For example: If 21 is assigned as an
extension number, there can not be any other
extension number assigned that begins with a 21. The
system class of service programming is used to assign
extension numbers to individual station ports.
FULL BUlTONPROGRAMMABILITY OF FEATURES
Most digital communication system features can be
made available at programmable buttons by
programming the specific access codes necessary for
dialing the features. Programmable features include
those that can utilize lamp (on/off) supervision (e.g.,
call park orbits). All feature access codes can be
stored, except for those requiring 
TRANSKONF
button action. Continuous strings of digits can be
stored, including 
ITCM button presses, up to the
maximum amount of storable digits allowed in an
autodial entry (16).HANDSFREE ANSWER INHIBIT
The MUTE button on a station can be used to block all
handsfree 
answerback response. This arrangement
will prevent a station user from monitoring another
station site using the monitoring 
ability of the voice
announce feature.When the button is pressed, all
handsfree answerback is disabled thus inhibiting any
off-site monitoring. The 
MNlR (SPKR) light will flash to
indicate that this feature is active. 
Also refer to the
discussion titled: 
Mute.I HOLD AND I USE INDICATIONS
The light associated wtth a line button provides a visual
indication of the status of that line. When a station user
has a line in-use or on-hold at a station, the light
indication provided at that station is of a diierent flash
rate than the indication provided at the other stations
in the system. No class of 
senrice programming is
required.
lMl66-083Description Of System Featf
IDLE LINE PREFERENCE
When a station is programmed for idle line preference,
it will automatically be connected to the first assigned
idle line. The system can be programmed on a per
station basis to enable idle line preference. When idle
line preference is enabled, taking the handset off-hook
will automatically connect the station to any assigned
line that is idle and has been arranged for this feature.
The line button will not have to be pressed. If this
feature is used in conjunction 
wfth prime line
automatic, the user will be given prime line first when
going off-hook. An idle line will be given 
if the prime
line is in use. The station class of service
programming enables this feature on a per station/per
line basis.
INTERCOM CALL PROGRESS TONES
Intercom call progress is marked by special tones. A
steady tone is provided for dial tone. Ring-back tone is
one second on and three seconds off. For tone
signalled intercom calls, a two-tone burst is sounded
every four seconds at a called station and returned to
the caller as ring-back. For a voice signalled intercom
call, a single tone burst is sounded at a called station.
When a called station is busy, a busy signal of one-half
second on and one-half second off is received at the
calling station. A fast busy tone will be supplied when
the called station is in the do not disturb mode. OPX
ports are only supplied with the regular busy tone
since fast busy tones could interfere with the operation
of some accessories that can be connected to this port.INTERCOM HUNT GROUP
Station ports can be assigned to intercom hunt
groups. When a station that is assigned to a hunt
’
group is busy or is a ring-no-answer (RNA), a call to it
will 
ring at the next idle station in the group. A hunt
group can be terminal or circular. A call will route down
a terminal group from the called station until it finds an
idle station or reaches the end of the group. A call will
search around a circular group until it encounters an
idle station or until all stations in the circular group are
searched. The ringing time at any one station is
programmable. Hunt groups are created through
station class of service programming.INTERCOM LINE TIMEOUT
Should the intercom line be selected with no dialing or
other action taking place, the intercom will timeout
after ten seconds, and return to an idle state.
LAST NUMBER REDIAL
Each station is provided with a last number redial
feature. This feature will save 32 
digtts of the last
outside number dialed. A newly dialed number will2-11 
						

							always automatically replace a previously dialed
number. Upon command, the system will choose a
Line and redial the saved number. The system will first
choose the prime line if assigned and idle. If it is busy
or unavailable, the system will choose any line
assigned to idle line preference. If they are
unavailable, the system will chose the last line used at
the station. If it is busy, no further choice is made. No
class of service is required. Also refer to thediscussion titled: Automatic Pause Insertion.
LCD MESSAGING
Standard and system-supplied custom display
messages can be set by dialing a specific code at any
station. Such messages are to be received and
displayed by any LCD speakerphone that calls the
station which set the message. When a message is
set, the intercom light at the setting station will flash to
indicate that the feature is active.
LCD SUPPORT
The system supports the use of digital telephones
having a Liquid Crystal Display (LCD). The display is
capable of providing the station user with a visual
presentation of: call cost, call duration, number dialed,
name of called station, name of active feature, date
and time, and programming prompts.LINE ACCESS RESTRICTION
Refer to the discussion titled: Access Denied.
LINE ANSWER FROM ANY
STATION (NIGHT MODE)
When the attendant programs the system for nighttime
operation using the night transfer of ringing feature, the
line answer from any station feature is made active.
With this feature, a user can dial an access code over
the intercom line to allow him to answer any ringing
outside line. The line need not be ringing at the user’s
station for this feature to be used.LINE GROUPS
Outside lines can be grouped together in up to four
different groups. Each group is accessible through a
unique dialing code or automatically selected with the
programmable 
autodial feature. Grouping can reserve
certain lines for certain clusters of stations as in a
tenant-setice arrangement. The assignment of line
groups frees station buttons normally used for line
selection thus making these buttons available for use
with a feature such as personal 
DSS/BLF with
station-to-station messaging. Lines are placed in line
groups 
with the line class of service programming.
-. #,.&on Of System FeatureslMl66-083
LINE PRESELECTION
A line can be manually selected before lifting the
handset (for handsfree dialing) or after the handset is
lifted.LINE AND LINE GROUP QUEUING
With the line queuing feature, the station user can take
action that will place a station in a queue where it
awaits the availability of a line or line group. The
station is automatically signalled with five tone bursts
when the line is available to it for use.Each station can
queue one line at a time.
MANUAL HOLD
A button activated feature at each station will place an
outside line on hold. Pressing the HOLD button holds
the call, provides a distinctive flash rate of the line
button indicator, and allows the user to access other
station features. The holding station or any other
station that has access to the line can retrieve the held
call.MEET-ME ANSWER PAGE
Any station user can dial a special code number in
response to an all-call or zone page and be connected
to the paging party in a private conversation. 
Allcall or
zone paging is provided to the stations through the
station class of service programming.MEMORY RETENTION WITHOUT
BAITERIES
The system memory is electronically protected during
AC power failures by an electronic device sometimes
known as a “super cap.” The stored program data will
remain in 
memory for a minimum of 65 hours provided
that the system has been powered continuously for at
least 30 minutes prior to the power failure or
disconnection. Also, the system clock will continue to
run and keep time for at least 30 minutes after an AC
power failure or disconnection.MESSAGE 
WAlTlNG
Special feature access codes enable a station user to
control the message waiting 
(MW) light at other
stations in the system. When the message waiting
light is turned on at a station, a call can be
automatically placed to the station that turned it on.
Alternately, one station can be designated by COS
programming as the central message desk and can be
arranged for exclusive message waiting control. The
central message desk can be used to control message
waiting lights and deliver messages to and from all
other stations in the system. The 
abilly of a station to
originate a message waiting signal is enabled by
programming action. Station class of service2-12 
						

							lMl66-083Description Of System Feat,.‘.
programming provides a station with the ability to
originate a message waiting signal and is used to
create a central message desk.MODULAR WIRING AND JACKSR- OR
4-CONDUCTOR WIRE SYSTEM
The system can be completely interconnected by
employing industry standard 
50-pin connectors and
modular plug/jack combinations. Station wiring is
small, 
2conductor, twisted-pair cable throughout the
system. A 
4conductor twisted-pair cable can be
employed if a spare pair is required for a separate
wiring purpose.
MUSIC INTERFACE
J
EXTERNAL SOURCEREQ 
IRED)
A jack is provided on the common equipment for the
connection of a customer-provided music source.
Also refer to the discussions titled: Background Music
and Music-On-Hold.
MUSIC-ON-HOLD
Music is provided to outside lines that are placed on
hold if an external music source is connected to the
system.Refer to the discussion titled: Music
Interface.MUSIC-ON-HOLD SYSTEM-WIDE
ENABLE/DISABLE
Music is provided to outside lines that are placed on
hold if an external music source is connected to the
system. Musicon-hold can be disabled system-wide
by attendant action.
Also see discussions titled:
Music Interface and Music-On-Hold.
MUTE
Each station has a MUTE button which, when pressed,
will mute the handset transmitter (or internal
microphone on speakerphones) to prevent the user’s
voice from being heard by the distant party. The
MNTR (SPKR) light flutters to indicate a muted
condition. The button provides push-on/push-off
operation on speakerphones. No class of service is
required. Also refer to the discussion titled: Handsfree
Answer 
Inhibit.NIGHT TRANSFER (OF RINGING)
Night transfer (of ringing) is an attendant-controlled
feature that transfers the day ringing program of all
incoming calls to a particular station or stations for
off-hour or special purpose answering. The 
nfght
transfer mode can only be activated from station 10 or
12. The individual lines at each station that are to be
transferred with this feature are selected by station
class of 
service programming.ON-HOOK DIALING
Every station provides manual and/or automatic dialing
while the station handset is on-hook. An internal
speaker monitors call progress for completion. (The
handset must be taken off-hook to provide the voice
link on non-speakerphone stations.)ORIGINATING DENIED
The ability to originate calls on certain lines can be
denied at individual stations through system
programming. The originating denied feature is
programmed on a per station/per line basis.
Originating denied does not prevent a user from
answering a ringing line, retrieving a held call or
receiving a transferred call. Call origination on a line is
denied at a particular station by the station class of
service programming.
PBWCENTREWCO COMPATIBLE
System features and programmable buttons support
the requirements of most 
PBXs, Central Offices, and
CENTREX systems. Numbers, # ‘s, s’s,
programmable pauses, and flash signals can be made
a part of every stored number for access to host
system feature codes.PERSONALIZED RINGING TONE
This feature allows a station user to choose one of four
diierent ring tones to aid in distinguishing one ringing
station from another.
POOLED LINE ACCESS(GROUP LINE ACCESS)’
Users can dial a special access code instead of
pushing a line button to access one of up to four
different groups of lines. Lines are arranged into
groups 
with the line class of service programming.
POWER FAILURE TRANSFER
A power failure line connection is available for
connecting industry-standard telephones such as a
Comdial model 2500. The power-fail telephone is
automatically connected directly to a certain line
whenever there is an AC power failure. Normal
origination and reception of calls on a power-fail
station is possible during the power failure condition.
The power-fail stations will automatically disconnect as
soon as power is restored.PRIME LINE AUTOMATIC
If a station is programmed for prime line automatic, the
designated outside line, intercom line or line group will
be automatically selected when the handset is taken 
						

							.,,tron Of System FeatureslMl66-083
off hook. Prime line pickup may be pre-empted by
preselecting another line before lifting the handset. 
lf
the prime line is ringing, 
lt is automatically answered by
lifting the handset. Prime line automatic is assigned 
t0
a station through station class of service programming.
PRIVACY - DESIGNATEDPROGRAMMABLE 
BUlTON
Stations can be programmed to provide a privacy
button. If a line is private, a user can press the privacy
button to change it into a non-private one. If the line is
non-private, pressing the button will have no effect.
Station class of service programming is used to
program the programmable button function at the
stations.
PRIVACY RELEASE/
BROKERAGE SERVICE
See the discussion titled: Privacy - Designated
Programmable buttonPRIVATE LINES (ACCESS DENIED)
See the discussion titled: Access Denied.PROGRAMMABLE DSS/BLF
(DIRECT STATION SELECTION/BUSY
LIGHT FIELD)
A station user can store one-button, direct station
selection (DSS) at any memory button location to
create a DSS memory button. When this button is
pressed, any active outside call is automatically placed
on hold and an intercom call is automatically made to
that previously stored station number. The visual
indicators of the stations programmed at the button
locations form a busy lamp field 
(BLF). The BLF
conveys station status to the user. An 
autodial number
can also be programmed as a secondary function at
every 
DSS/BLF memory location. No class of senrice
is required. 
Also refer to the discussion titled: Tone Or
Voice 
SignaIling (intercom).PROGRAMMABLE 
BUlTONS
Refer to the discussions titled: FullButton
Programmability 
OfFeatures, Programmable DSs/BLF,
and Dedicated Programmable buttons.
PULSE/TONE SWITCHABLE
The system can be programmed on a per line basis to
allow the stations to switch from pulse to DTMF type
dialing as needed. Aftemately, the system can be
programmed to only allow tone dialing. The line class
of service programming sets the dialing mode required
for a particular line.
RESPONSE MESSAGING
This feature allows a user to reply in a non-verbal
manner to a voice announce or tone-signalled
intercom call or to a secure off -hook voice announce
call if the intercom caller is using an LCD
speakerphone. A station user can press a
programmable button in response to an intercom call
and send a message to be shown on the display of the
calling station. Response messages are
pre-programmed by the attendant and later stored by
station users at programmable buttons on their
individual stations as need dictates.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.
RINGING LINE PREFERENCE
The system can be programmed on a per station basis
to provide ringing line preference on all lines
programmed for ringing at the station.
When ringing line preference is enabled at a station,
taking the handset off-hook automatically connects the
station to any outside line that is ringing at it. A line
button will not have to be pressed. 
lf a station also has
prime line assigned, the prime line will 
ahays be
answered first even though it may be the second line
to ring. The 
ability of a particular station to answer a
ringing line without line selection is enabled by the
station class of service programming.
SAVED NUMBER REDIAL
This feature enables a button action to save the first 16
digits of the last number manually dialed from the
buttonpad. The saved number can be redialed at a
later time. The saved number is permanently available
for later use until it is replaced with a new number.
SECURE OFF-HOOK VOICE ANNOUNCE
With the secure off-hook voice announce (SOHVA)
feature, a secure announcement can be made from
one station to another station that is off-hook and busy