Comdial Executech 2000 Telephone System Instructions Manual

							ZMZ66-068Description Of System Features
:Automatic 
Privacy-3.6.3-
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 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, 3.6.3.Through station class of service programming, you can make a line non-private at a
particular station 3.7.10. Also see-Conference - Add-OnAutomatic Privacy Release-3.7.1 
O-
You can arrange for individual stations to automatically release privacy while on certain private lines. With this
arrangement, other stations can join that particular station whenever it is on the line that you have assigned as a
privacy release line.
Automatic Rediul (Of Busy number Or Unanswered Call)
A user can automatically redial a busy number or unanswered call by activating this feature.Once the user selects
automatic redial, the station will select the line, automatically dial the number, and wait for a response. The station
will do this once a minute for approximately 10 minutes unless deactivated-a user can deactivate the function by
pressing the line button, or any button, or by lifting the handset. The system times the redial cycle. The automatic
redial feature does not have busy detection circuitry, which means that if a user is operating handsfree when the
called party answers, he or she must take the handset off-hook to prevent the caller from being cut off by the timing
cycle.Automatic redial is a designated programmable button position and the user must program it to be active, but
no class of service programming is required.Auxiliary Equipment Interface
You can connect a non-key system telephone device or a data device, such as a fax machine, to a line ahead of the
common equipment by using the auxiliary equipment interface. The system can detect an off-hook condition in the
device connected to the auxiliary equipment interface and turn on the status light for that line at the key system
telephones. The lights, therefore, 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 pressing the line button on a station will not
interrupt an external device unless the line has been programmed to be non-private.No class of service
programming is required.Auxiliary Station Ringer Interface
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. Also
see-Common Audible Ringer Intelface.
B.Background 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 call monitor speaker volume control, and the
background music automatically turns off during calls.No class of service programming is required to provide this
feature. Also see-Music on HoldBasic Key Service (la2) Emulation
The system provides all of the basic, lAZtype, 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.
5-3 
						

							Description Of System FeaturesIMI66-068Battery Back-up Interface
We have made it possible to attach a Comdial provided optional battery back-up kit to the common equipment.
Battery back-up will give 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 will constantly charge 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.
Block Programming-3.6.13-
You can assign class of service that you have already programmed at a particular station or line can to an entire
block of stations or lines with one programming action. This feature eliminates the need to individually program
stations and lines with the same class of service.You can perform block programming class of service after you
have programmed a station class of service or line class of service function for a particular station or line.
C.
Call Announce With Handsfree 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 handset transmits this response.No
class of service programming is required (not available on 6701X).
Call Costing-3.13-
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 displayed 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, but it does not restrict dialing as toll
restriction does. Call costs are based on a two-tier time rate and include a line surcharge cost. You can program
allowances for call set-up and minimum call duration. The system provides three ways of determining call costing.
These call cost methods are as follows: exception tables, area/office code banding, and call cost tables. Between
these three means of call costing, it is possible to apply very accurate rates.
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 will indicate 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 Also
see-Call Forwarding-Busy Ring No-Answer 
						

							ZA4Z66-068Description Of System Features
:_Call Forwarding-Busy /Ring-No-Answer-3.7.11-
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 either by intercom hunt group or by department.Call Forwarding-Personal
A user can forward just his or her personal calls to another station. For each personal call received with call forward
enabled, the system rings a short tone burst at the forwarding station to remind the user that the calls are being
forwarded.Call Park
The call park feature is similar to a manual hold condition. A call that a user parks at his or her station can be
retrieved at any station in the system by dialing the appropriate access code.
(Note: the retrieving station cannot
have access denied to the line on which the call appears.)Users park and retrieve calls within the system through the
use of dialing codes. The system provides nine parking circuits (orbits). Call park, when used with the paging
features, allows a system attendant to direct calls to roving personnel.
A call that is left in a parking orbit for a
preprogrammed length of time automatically returns to a timed hold recall condition at the station that originally
parked 
the call-see Call Park Recall Time.Call Park Recall Time-3.5.1X
A call that remains in a parking orbit for a programmed length of time automatically returns to a timed hold recall
condition at the parking station.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-Group
If a call rings to any station in a pre-programmed group and another user in the group wishes to answer the call, that
user must dial the group pickup code to answer the call. Four different groups can exist with any number of stations
in a group. You can provide an overlap by allowing stations to be in more than one group.Croup stations together
using the station class of service programming, 3.7.24.Call Transfer-Screened
I
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 T/C 
(TRANSKONF) button.No class of
service programming is required. Also see-call Transfer-Unscreened.Call Transfer-Unscreened
A user can transfer an active call without being announced. The transferred call will camp onto 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, 3.5.21.
5-5 
						

							Description Of System FeaturesIMI66-068Call Transfer-Unscreened (with Automatic Camp-on to Busy Station)
A user can transfer an active call can without being announced. The transferred call will immediately ring at that
station if it is idle. If a user transfers a call to a busy station, the transferred call will automatically camp-on at the
busy station. If tbe 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 (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.
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 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) to the
lowest (the station user) level.However, only the station user can program the speed dial and autodial locations at
telephone. Also see-3.2.
Perform all class of service (COS) programming from station 10 or 12. Any multiline 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 programrning procedures.Class of service programming access is as
follows:l
Installer dials: ITCM +K # 7 4 6 %l
Administrator dials: ITCM f # 2 3 6 +Kl
Attendant dials: ITCM +K #
0User dials: ITCM % %Class Of Service Programming (Video Display Terminal)
You can use an asynchronous, serial data terminal with an RS-232 interface to effect class of service programming
through menu-driven procedures. VDT programming provides a menu-driven approach to programming as
discussed in IMI66-068.
-.;
5-6 
						

							ZMZ66-068Description Of System Features
Class Of Service Program Printout
We have provided connection terminals 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 printer
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, 3 5.1.
Class Of Service Program Storage (Cassette Tape recorder Interface)
You can use a customer-supplied cassette tape recorder to both store and load all class of service programming and
station programmable button data. The programming station provides control. Connect the tape recorder through
the music interface jack. COS recording or loading requires approximately 15 minutes. The programming station
will ring when recording or loading is complete. Follow 
the instructions provided in the cassette tape recorder
interfacing class of service programming discussion, 3.16.Common Audible Ringer Interface
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 15 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
Znte$ace.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 will allow 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 T/C 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-Corzferencing - Multiline.
D.Data Baud Rate-3.5. 
I-
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.Data Printer Service 
Configuration-3.11-
You, the installer, can configure an external printer to print only sections of the SMDR records, such as data for all
lines or data for all stations. Also see--SMDA Reporting 3.14Data 
Security-3.7.16
Data security prevents any type of tone (DTMF, camp-on, barge-in, etc.) from interrupting an active call on a port
programmed with the feature. This feature prevents interference to non-voice communications from occurring when
you are using the port as a data port (when operating a modem through an OPX port for, example).
5-7 
						

							Description Of System FeaturesIMI66-068Dedicated Intercom for 
Attendant-3.7.15-
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. Intercom links can also be reserved for
exclusive use by any particular station in the system.
Defaults-3.4-
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 are 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. Also see-3.15.Delayed 
Ringing-3.7.19-
You can program the ringing assignments for individual stations.You can program a station to provide delayed
ringing on some lines while providing immediate ringing on other lines.See-Flexible Ringing Assignments.Designated Programmable Buttons
You can assign station programmable buttons to provide one-button access to a broad range of features.There are
designated buttons that you must be assign at each station using station class of service programming, but the station
user can assign the auto redial button.Dial 0 For System Attendant
Whenever any station user dials 0 on the intercom line, the system signals the attendant station (station 10)No class
of service programming is required.Direct Department 
Calling-3.9-
Direct department calling provides a means by which you can assign outside lines to one of four different
departments.Calls received on lines that are assigned to a department search for an idle station in that department. 
j
You can form up to four departments with up to 16 stations allowed in each department. The system also allows one
additional terminating station in each department. You can assign a station to one, several, or all departments.
An incoming call searches for the first available station that is not busy or a ring-no-answer (RNA).If all the
stations in a department are busy or are RNA, the call will go to the terminating station in that department (if one has
been programmed). If the terminating station is busy, the call will test the department stations again. This action
will continue until someone answers the call or until the 
call is dropped. Subsequent calls to a department always
ring at the next station in the department from whichever station serviced the last department call.You can program
the ring-no-answer time to allow a call to search rapidly through a department for an answer.
You can assign unique access codes to departments that can be used for making intercom calls or doing call transfers
to a department. Intercom calls will test the department stations for busy or a RNA. A transferred call, however,
will follow the standard direct department calling procedure.
It should be noted that the departments formed for use with this feature are different from departments used in
SMDA reporting.
5-8 
						

							ZMZ66-068Description Of System FeaturesDirect 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. Users can
dial a feature code plus a station extension number over the intercom line to park the call, or you can program a
programmable button to provide a “directed hold” to a specific station. The directed station user picks up the parked
call by dialing a feature code. The call can be picked up at any station through the use of the call pickup feature. No
class of service is required. Also see-Call Pickup and Call Park.Direct Station Selection (DSS) Programmable
See-Programmable DSS.BLF.
! -:.:_‘.Distinctive RingingThe ringing cadence of an incoming call is the same as the ringing cadence of the TELCO, PBX, or CENTREX
system. The ringing cadence of an intercom call presents two tone bursts sounded every four seconds. No class of
service programming is required.Do-Not-Disturb-3.5.2-
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 DND
mode hears a fast busy tone.The feature cannot be overridden by the calling party unless you have enabled the
override feature.Refer to the discussions titled: Do-Not-Disturb Inhibit, Do-Not-Disturb Override and
Executive/Attendant Ovem’de.Do Not Disturb 
Inhibit-3.5.3-
You can program the system to inhibit any station from entering the DND mode.Do Not Disturb 
Override-3.56
You can provide stations with DND override capability that 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.Also
see-Do Not Disturb and Executive/Attendant Override.DSS 
/ BLF
You can install a DSS/BLF to enhance call handling at multiline stations. When installed at any station port, then
DSS/BLF extends the programmable button field of the data-paired companion station by additional buttons and
status lights. The model 
DB32S Module also provides off-hook voice announce (OHVA) and handsfree answerback
features to the station user. The 
DSS/BLF console offers DSS and a BLF light for each monitored telephone.You
must program the station port for a DSS/BLF, see-3.7.29. You can use unused buttons on a telephone as DSS/BLF
buttons.
DSUBLF Console Support
You can use the data-paired port of a station for a DSS console.The use of DSSIBLF consoles is limited only by
port availability; however, since a console must be data-paired with a corresponding station, you can only use up to
one-half of the available station ports for consoles.
The console provides a one-button direct station selection (DSS) intercom and an associated busy lamp field (BLF).
The console also provides additional auto dial capability to the station user.
5-9 
						

							Description Of System FeaturesIMIW068Dual 
Intercom-3.7.43.12-
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 lTCh4 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:l
Remote call pickup is not available.l
Distant party hang-up causes intercom link to drop.l
Intercom call to station already busy on intercom rings in subdued fashion and flashes indicator associated with
other intercom button.l
With both intercom lines busy, a third intercom call results in off-hook voice announce at busy station.l
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.l
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 and receive dial tone.Dynamic Line 
Buttons-3.7.43.8-
You 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 that normally does not have the line.
The station will then also have that line
appear on a dynamic line button. While the call is appearing on the dynamic line button (LED on), users can
perform any normal call handling operations.
E.End-to-end Signaling on Intercom
After a user has established an intercom call, the system can continue to send dialing signals (DTMF tones) through
the intercom path.Users can perform this feature from every station in the system and it can be used by peripherals
such as an OPX accessory unit and voice mail equipment. No class of service programming is required.End-to-end Signaling on Lines
3
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 will revert to a normal line hold condition. No class of service programming is required.Exclusive Hold System-wide 
Enable/Disable-3.56
This feature allows you to turn off exclusive hold system-wide.Executive/Attendant Override-3.7.1 
7-
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 , sound a warning tone. The caller will then have access to the existing conversation.
5-10 
						

							ZMZ66-068Description Of System FeaturesExternal Paging 
Interface-2.8.6- and -3.7.18-
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 amplifier.
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 
(DTiWF)-3.5.17-
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 
msec 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-3.7.21-
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-3.7.22-
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-t+Station Port ReassignmentFlexible Station Numbering 
Plan-3.7.23-
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 ExecuTech features 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). 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-3.5.23.
5-11 
						

							Description Of System FeaturesZMZ66-068
G.Group Call 
Pickup-3.7.26
If a call rings to any station in a prearranged group, a user at another station in that group can dial a group pickup
code and answer the call.
H.
Handsfree Answer Inhibit
A user can press the MUTE button on a multiline station 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 user presses the button, all handsfree answerback is disabled thus inhibiting any
off-site monitoring. The monitor light will flash to indicate that this feature is active. No class of service
programming is required. Also see-Mute.Headset Interface-3.7.25
You can enable a station port to allow headset operation with a special telephone that provides this feature. You
must program that telephone to accept the headphone.Hunt Group On 
Intercom-3.7.27-
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 of a different flash rate than the
indication provided at the other stations in the system. No class of service programming is required.,Idle Line 
Preference-3.7.26
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 connect 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
The 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 two-tone 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 and returns to the caller as ring-back. 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.Off-Premise Extension (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. No class of service programming is required.
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