Comdial Unisyn System Manual

							IMIH-112Description Of System Features
System Features
AAbandoned Hold 
Release-3.6.2-
When a distant party abandons a Hold condition (hangs up), causing an interruption in the Iine current, the system
drops the line from hold and returns it to service. You can program the time interval between hang-up and line-drop
between either 50 msec. or 350 
rnsec. This feature usually depends upon special arrangements that must be made at
the CO end of the connection. The line select indicator will turn off to indicate an idle line after a call on that line
has been abandoned.Access 
Denied-3.7.2-
You can deny access to particular lines at certain stations in the system through system programming. A station user
cannot select a denied line for use.You can program this feature on a per line/per station basis in station class of
service programming.All-Call Paging-3.7.3, 
3.7.”
All-call paging allows all multiline stations to receive announcements through the station speaker at once.
Origination of announcements must be via the station handset. You 
can program each station to receive and/or
originate all-call page. Also see--Zone 
Paging.
All Intercom Links Busy Indication
When all intercom paths are busy, the system causes the intercom light at each station to be on steady. No class of
service programming is required to enable 
this feature; however, station class of service programming will allow an
intercom link to be reserved for exclusive use by a particular station (3.7.13).
IST users will not get ITCM dial tone
if all links are busy.Area Paging Interface
See-External Paging Interface.
Automatic Call-back -3.8.1-
When a user encounters a busy tone or a ring-no-answer on an intercom call, he or she can dial a special code (or use
interactive button) that causes the system to automatically ring both the calling and called stations when the called
station becomes idle. No class of service programming is required to enable this feature.
.
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							Description Of System FeaturesIMI66112Automatic Hold For 
Intercom-3.7.6-
If a user selects the second intercom line while a call is active on the first intercom line, this feature causes the first
intercom call to be automatically placed on hold.Automatic 
HoM-Transfer To Intercom (Answer Hold)-3.7.5-
If the intercom line is selected while an outside line call is active, this system feature causes the outside call to be
automatically placed on hold.No class of service programming is required to enable this feature.Automatic Hold-Transfer To 
Line-X7.5-
When you enable this feature, an active line will automatically go on hold when the user presses any line button.
This feature allows a user to move from line to line without having to press the HOLD button to place any current
calls on hold.Automatic 
Privacy-3.6.3,3.7.7-
You can program a line to be private or non-private.In the private mode, a station has exclusive use of the line
during a call, and no other station can access that line unless the user includes the add-on station through the use of
the privacy or add-on conference feature. In the non-private mode, all stations with that line appearance can 
gain
access at the same time (sometimes known as common line pickup). Use line class of service programming to make
a line private or non-private. Through station class of service programming, you can make a 
line non-private at aparticular station. Also see-Conference -Add-On
Automatic Privacy 
Release-3.6.4,3.7.8-
You can arrange for individual stations to automatically release privacy while on certain private lines.With this
arrangement, other stations can join that 
pticula station whenever it is on the line that you have assigned as a
privacy release line.
Auxiliary Station Ringer Interface-2.7.4,2.7.5-
The auxiliary station ringer interface provides “dry-contact” relay closures whenever station 17 rings. The contact
closures track the ringing pattern of station 17 and can control an external signaling device. When you program
station port 17 to function as a PA port, the auxiliary ringer interface relay contacts automatically become
supervisory contacts and close when someone 
calls the PA port.No class of service programming is required. Alsosee-Common Audible Ringer 
Intelface.
BBackground Music (External Music Source Required)
If the system user provides an external music source, station users can turn on background music at their particular
stations. Users adjust the loudness of the background music with the speaker volume 
control. The background
music automatically turns off during 
calls. NO ~1a.s~ of service programming is required to provide this feature. The
system will not support background music with bridged proprietary and auxiliary devices connected.Alsosee-Music on Hold
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							IMI66-112Description Of System FeaturesBasic Key Service (la2) Emulation
The system provides all of the basic, IAZtype, key service features. These features are as follows: selective line
pickup, common line pickup, multiline pickup, and hold. No special class of service programming is required.Battery Back-up Interface 
-2.4.2-
We have made it possible to attach a Comdial-provided optional battery back-up kit to the common equipment.
Battery back-up gives full uninterrupted system power in case of an AC power loss. The switching and trickle
charge circuitry are in the common equipment, while batteries, chassis, and cable are packaged as a separate option.
When plugged into an active AC power source, the common equipment constantly charges the attached batteries
with a trickle current. 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.No class
of service programming is required.
C
4Call Announce With Handsflee Answerback
The internal speaker at each multiline station provides call-announce capability over the intercom link. Users can
make handsfree response to a call-announce. The microphone built into the telephone transmits this response. No
class of service programming is required (Handsfree Answerback not available on 1122X).
Call Forwarding On 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 you have enabled call forwarding when night transfer of ringing is
activated, the system also forwards the night ringing assignment of the station.The system can also forward calls
that have been forwarded once.Therefore, 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. For each intercom call that a station receives while calls are
forwarded, a short tone burst will occur at the forwarding station as a reminder that call forwarding is enabled.
When you designate a programmable button to serve as a call forward button, the associated LED will turn on when
the user presses the button.The LED indicates that the feature is enabled. If you program the call forward button as
a second level to a 
DSS/BLF button, the LED indication is always reserved 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. No class of service programming is required. Alsosee-Call Forwarding-Busy Ring No-Answer
,: .‘.:
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							Description Of System FeaturesIMIii6-112Call Forwarding-Busy /Ring-No-Answer-3.7.9,3.X3-
The system can automatically forward busy or ring-no answer calls to a different station for answering.The system
sends these calls to any idle station associated by intercom hunt 
group.Call Pickup-Directed
A station user can dial a code, followed by the extension number of a ringing station, to answer the ringing call.No
class of service programming is required.
Call Pickup
If a call rings to any station in the system and another user wishes to answer the call, that user must dial the pickup
code to answer the call.Call Transfer-Screened
Screened call transfer allows a user 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, they can simply use a common line pickup transfer-the
transferred station merely presses the line button of the incoming call.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 user transfers
a call with a pre-transfer announcement. Users can transfer calls with the CONF button. No class of serviceprogramming is required. Also see-Call Transfer-Unscreened.
Call Transfer-
Unscreened-3.5X-
A user can transfer an active call without being announced. The transferred call camps-on to the other station where
it rings and awaits 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 
C& GUI 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 Transfer-
Unscreened (with Automatic Camp-on to Busy Station)
A user can transfer an active call without being announced. The transferred call immediately rings at that station if it
is idle. If a user transfers a call to a busy station, the transferred call automatically camps-on at the busy station. If
the user transfers additional calls to the busy station, the system places those calls in a camp-on queue. When the
user who has received all of the transferred calls hangs up the current call,the first queued transferred call will ring.
This sequence continues until the user has answered all transferred calls. Stations that have line appearance for a
transferred line will show a “my-line” held call status indication for the transferred call. The transferred call will
automatically ring back to the transferring station after a programmable transfer recall period.
Call Waiting Tone
A user can send the call waiting tone to a busy station to indicate that he or she wants to contact the busy station.
Users dial a special code to activate the tone. No class of service programming is required..
Calling Station Identification On BLF
If you have programmed the station number of a calling station into the direct station select/busy lamp field
(DSS/BLF) of a called station, the caller will be identified by a flashing BLF light. The lights also indicate the status
of the DSS telephones: dark = idle, steady-on = in use, flash = calling, and flutter 
= call back request. No class of
service programming is required for this feature. 
						

							Ib!lI66-112Description Of System Features
Class Of Service Programming (From Main Station)
Use class of service (COS) programming to configure and assign all system, line, station, and special purpose
operating features. Enter COS programming by dialing an access code over the intercom line. System
administrators can enter COS programming with another code to re-program any system, station, or special purpose
operating feature that may require change at a later date.Line reprogramming ability and defaults are 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, 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.However, only the station user can program the speed dial locations
at his or her telephone.
Perform all class of service (COS) programming from station 10 or 12. Any multiline station combination functions
in this mode and provides visual feedback with the LED associated with the programming button.By employing an
LCD speakerphone, however, the programmer has 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 +Kl
Attendant dials: ITCM +K #l
User dials: ITCM % %
Common Audible Ringer Interface-2.7.2-
Connections are available at the common equipment that provide “dry-contact” relay closures whenever an incoming
line rings.These contact closures track the ringing pattern and can be used to control an external signaling device.
When you program station port 17 to be a PA port, the common audible ringer interface contact points automatically
become supervisory contacts that close when someone 
calls the PA port.Also, see-Auxiliary Station Ringer
Interface.Conferencing-Add-on
With this feature, a station operating in a private mode can add another station to an outside call.No class of service
programming is required.Conferencing-Multiline
This feature allows one multiline station to access two outside lines at the same time resulting in a conference
arrangement. A user can establish conferencing by using the CONF button. Conference transmission levels are not
compensated. No class of service programming is required.Conferencing-Unsupervised
-.
After a conference between an internal party and 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. No class of service programming is required Also
see-Conferencing - Multiline. There is no unsupervised conferencing on IST stations.D
Data Baud 
Rate-3.5.2-
You must program the speed or baud rate of the data bit stream, which carries the SMDR and configuration data
between the system and an external data device, to match the requirements of the data device.
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							Description Of System FeaturesIMI66-I12Data 
Security-3.7X-
Data security prevents any type of tone (DTMF, calI waiting, barge-in, etc.) from interrupting an active call on a port
programfned with the feature. This feature prevents interference to non-voice communications from occurring when
you are using the port as an auxiliary bridged device or a stand-alone IST data port.Dedicated Intercom for 
Attendant-3.7.13-
This programmable feature ensures that an attendant at a principal call answering position will always have a free
intercom link to use for announcing the incoming calls to the stations.You can also reserve intercom links for
exclusive use by any particular station in the system.
Defaults-3.6
At initial power-up of the system, the operating features are set to a specific group of operating conditions (default
conditions). The default conditions provide a complete operating system for normal use. You can leave the system
as a defaulted system or reprogram. You can reset the default conditions by system, line, and station class of service
programming.A master clear will default the entire system and erase all stored programmable button information.
Default Toll Restriction-3.4.6-
The system defaults two toll restriction tables with pre-programmed values and assigns those tables to all lines.All
you have to do is assign the tables to the stations to put them into effect.You can reprogram the defaulted tables
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-3.7.1 
6-
You can program delayed ringing assignments for individual stations.You can program a station to provide delayed
ringing on some lines while providing immediate ringing on other lines (delayed ringing occurs on the fourth ring
from the CO).See-Flexible Ringing Assignments.Designated Programmable Buttons 
-3.8-
You can assign station programmable buttons to provide one-button access to a broad range of features.There are
some designated buttons that 
YOU must assign at each station using station class of service programming, but the
station user can assign many others.
Dial 0 / 9 For System Attendant-3.5.1-
Whenever any station user dials 0 (or 9) on the intercom line, the system signals the attendant station (station 10).
Direct Station Selection (DSS) ProgrammableSee-Programmable 
DSYBLF.
Direct Ringing
See-Flexible Ringing Assignments.
Distinctive Ringing-3.7.22-
The ringing cadence of an incoming cdl is the same as the ringing cadence of the TELCQ PEN, or CENTR.EX
system. The ringing cadence of an intercom call presents two tone bursts sounded every four seconds. 
Class of
service programming is required for IST ports.Do-Not-Disturb-3.8.6
You can set any station 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, however; line appearance and 
ITCM will flash.A party
making an intercom call to a station set in the DND mode hears a fast busy tone...
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							In!iI66-112Description Of System Features
Dual Intercom-3.8.9-
This feature provides two separate intercom lines at the same station.One intercom line is fixed, and a user can
access that intercom line by pressing the 
ITCM button. You can program the other intercom line,and a user can
access that intercom line by pressing the programmable button selected for that purpose. A user would handle calls
on the intercom lines in much the same manner as he or she would handle outside calls.Special considerations for
dual intercom operation are as follows:E
Remote call pickup is not available.
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 receives a busy signal.
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.
End-to-end Signaling on Intercom
After a user has established an intercom call, the system can continue to send dialing signals (DTh4F tones) through
the intercom path to IST devices. Users can perform this feature from every station in the system, and it can be used
with peripherals such as voice mail equipment. No class of service programming is required.
End-to-end Signaling on Lines
After a user has established an outside call, 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.No class of service
programming is required.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 signaling will occur and
the exclusive hold condition reverts to a normal line hold condition. Default is disabled.Exclusive Hold System-wide 
Enable/Disable-3.5.4-
This feature allows you to turn on or off exclusive hold system-wide.
5-7 
						

							Description Of System FeaturesIh!f.I66-II2External Paging 
Interface-2.7.3,2.7.4, 3.7.I5-
You can program a station port or line port to interface with an external paging amplifier.Users can then access the
paging amplifier through the station port or directly through the line port from other stations in the system. The user
can dial DTMF tones through the line 
port to provide zone selection if provided by the external paging anqlifier.
The line class of service programming arranges a line port for external paging interface, and the station class of
service arranges a station port for external paging interface.Extended Dual Tone Multiple Frequency (DTMF)-3.5. I 
O-
The system can access outside equipment, answering machines, banking computers, voice mail equipment, for
example, that require 
DTMF tones that are longer than the standard 80 maser tone.A shift to a longer tone, of
pre-programmed length, is automatically made 
10 seconds after a line is selected or 10 seconds after the last digit of
a number is dialed. A user 
can shift from one tone length to the other by pressing the hold button and then
re-selecting the line.F
Flexible Ringing Assignments-3.7.1 
6-3.7.20-
You can program ringing assignments on a per station/per line basis for every line that has an appearance at each
station.Also see-Delayed Ringing and Night Ringing.
Flexible Ringing Assignments Of PA Ports-3.7.19-
Stations ports that you program as PA ports can also be programmed for flexible ringing assignments. You can
program any desired lines to direct or delay ring at this port.You can connect a speaker to the voice pair of this port
and when connected, it will sound the ringing that is generated by the system and sent to this port as if it were a
regular station port. Using such an arrangement, the user can 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. You can only program one PA port per system as a ringing PA port. Users cannot use the
speaker for voice response as the path is one-way only.
Flexible Station And Trunk Class Of Service Control
See Line-to-Line Port Reassignment and Station-tcMtation Port Reassignment
Flexible Station Numbering Plan-3.7.21)-
You can program each station to respond to the dialing of any available number between 10-79, 100-799, or
1000-7999. Also, you can assign any combination of two, three, or four digit extension numbers as long as they do
not conflict. For example: 
If you assign 21 as an extension number, there cannot be any other extension number
assigned that begins with a 21.
Full Button Programmability Of Features
You can make most Unisyn features available at programmable buttons by programming the feature buttons or the
specific access codes necessary for dialing the features. Programmable features include those that can utilize lamp
(on/off) supervision. You can store all feature access codes, except for those requiring T/C button action. You can
also store continuous strings of digits, including ITCM button presses, up to sixteen digits per button.
5-8 
						

							IMZ66-112
Description Of System FeaturesH
Handsflee Answer Inhibit
A user can press the MUTE button on a multiline station to block all handsfree answerback response. ‘Ihis
arrangement will prevent a station user from monitoring another station site using the monitoring ability of the voice
announce feature.When the user presses the button, all handsfree answerback is disabled thus inhibiting any
off-site monitoring. The mute LED is steady-on to indicate that this feature is active. Any user activity at the
telephone cancels the mute condition. No class of service programming is required. Also 
see--Mute.
,,:.
; :‘..Headset 
Interface-3.7.21-
You can enable a station port to allow headset operation through the handset. You must program that telephone to
accept the headset.Hunt Group On 
Intercom-3.7.10-
You can assign station ports 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 that station 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. Up to 16 stations can be placed in one hunt group.You can program the
ringing time at any one station.I
I Hold And I Use Indications
The light associated with 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 green or flashing green; the light
indication at the other stations in the system is red or flashing red. No class of service programming is required.Idle Line Preference
When you program a station for idle line preference, it will automaticallyconnect to the first assigned idle line.
You can program the system on a per station basis to enable idle line preference.When idle line preference is
enabled, taking the handset off-hook will automatically 
COMeCt the station to any assigned line that is idle and has
been arranged for this feature. The user will not have to press the line button. If someone uses this feature in
conjunction with 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.Intercom Call Progress Tones
: :.:.- ,..’
Ihe system marks intercom call progress by special tones. A steady tone sounds for dial tone. A one-second-on and
three-seconds-off tone sounds for ring-back. For tone signaled intercom calls, a double-ring burst sounds every four
seconds at a called station and returns to the caller as ring-back. For a voice-signaled intercom call, a single tone
burst sounds at a called station. When a called station is busy on an intercom call, a busy signal of one-half second
on and one-half second off sounds at the calling station.When a station is busy on an outside call, the called station
gets a subdued ring, and the calling station gets a ring back tone. A fast busy tone will be supplied when the called
station is in the do-not-disturb mode. 
NO class of service programming is required.
5-9 
						

							Description Of System FeaturesIMI66-112Intercom Line Timeout
Should the intercom line be selected with no dialing or other action taking place, the intercom “times out” after ten
seconds, and returns to an idle state. No class of service programming is required. If no intercom is available on an
IST telephone, the system does not provide an intercom tone until an intercom does become available.
-
L
Languages-3.7.2”
You can program the system to display all LCD prompts in one of three languages: English, Spanish, or French.Last Number 
Rediul
The system provides each station with a last number redial feature.This feature will save 32 digits of the last
outside number dialed. A newly dialed number will 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 prime line is busy or unavailable, the system will choose any line assigned to idle line
preference. If they too are unavailable, the system will choose the last line used at the station. If it is busy, no
further choice is made. No class of service is required. Also 
see-Automatic Pause Znserth.
LCD Support
The system supports the use of speakerphones having a Liquid Crystal Display (LCD). The LCD speakerphone
ports are identified by station class of service programming.Line Port Functions-Line 
Disable-3.6.6-
You can take a line port out of service when necessary (because of defect, for example) using this programming
procedure. Return the line to service with the central office lines programming step, 3.6.8.Line Port Functions-Auxiliary 
Lines-3.6.7-
You can program a line to serve as a port for an external paging amplifier.See-External Paging Znteeace.Line Port Functions-Central Office 
Lines-3.6.8-
You can condition a line port to serve as a port for a standard telephone company supplied central office line.Line Groups-3.6.5, 
3.8.7-
You can group outside lines together in up to four different groups. Each group is accessible through a unique
dialing code or is automatically selected with the programmable 
autodial feature. Grouping can reserve certain lines
for certain clusters of stations as in a tenant-service arrangement or reserve certain lines for access only by
single-line sets. 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 a second ITCM key.Line 
Preselection-3.6.5-
A user can manually select a line before lifting the handset (for handsfree dialing) or after the handset is lifted.No
class of service programming is required.
Line Queuing
With the line queuing feature, a user can dial a special code number that will place a station in a queue where it
awaits the availability of a line or line group.When the line is available to it for use, the system automatically
signals the station with five tone bursts . Each station can queue one line at a time. No class of service
programming is required.
5-10