Comdial Dxp Plus Instructions Manual

							Flexible Ringing Assignments
The programmer can arrange ringing assignments for every station. He or she can arrange for this ringing
to sound immediately as soon as the call appears on specified lines at a telephone (direct ringing) or after
a system imposed delay (delayed ringing). Further, he or she can arrange for a telephone to ring when
calls appear on specified lines during certain periods of the day or night. To program for flexible ringing,
the programmer assigns lines to the direct and delayed ringing modes. He or she also divides a 24-hour
period into three time blocks designated as day 1, day 2, and night mode and assigns lines to each of these
categories.  The programmer then assigns the direct, delayed, day 1, day 2, and night mode ringing
designations to the various stations.
During the day 1 time period, calls on lines assigned to direct, delayed and day 1 categories all ring.
During the day 2 time period, calls on lines assigned to direct, delayed and day 2 categories all ring.
During the night time period, calls on lines assigned to delayed and night both ring.
The system also provides a manual night transfer (of ringing) feature that the attendant activates by
dialing a code or pressing a preprogrammed button. While this feature is active, calls on lines assigned to
delayed and night ringing both ring at the various stations; however, no other ringing occurs.
Also refer to the discussions titledAuxiliary Ringer Interface, Common Audible Ringer Interface,
External Paging Interface, Line Answer From Any Station, andNight Transfer (Of Ringing).
Flexible Ringing Assignment Of The External Paging Interface
Refer to the discussion titled,External Paging Interface.
Flexible Station Numbering Plan
Refer to the discussions titledFeature Renumbering and Intercom Number.
Full Button Programmability Of Features
The programmer, and often the telephone users themselves, can make frequently dialed feature codes
available at programmable buttons by storing the specific access codes necessary for dialing the features.
They can store every feature access code, except those requiring TRANS/CONF button action, in a
continuous string including button actuations and keypad digits up to a maximum of 16 digits per
programmable button.
Also refer to the discussion titledProgrammable Button Flexibility.
G
Group Intercoms
Refer to the discussion titled  Feature Renumbering and Intercom Number.
Ground Start Line Support
Refer to the discussion titledMultipurpose Line Board Support.
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							H
Handsfree Answer Inhibit
The MUTE button on a multiline telephone will block all handsfree answerback response. This
arrangement prevents a station user from monitoring another station site using the monitoring ability of
the voice announce feature.  When a user presses the MUTE button at his or her telephone, all handsfree
answerback is disabled thus inhibiting any off-site monitoring. The mute light will remain on to indicate
that this feature is active on digital telephones. On analog telephones, the monitor light will flash. Also
refer to the discussion titledMute.
Handset Volume Level(On Impact Telephones)
The installer can program the handset volume feature on Impact telephones to offer the station user more
choices when selecting the handset volume level locally from his or her telephone. Normally, users have
up to 8 volume levels that they can select. However, this programmed feature increases the user’s handset
volume choices to 13.
Headset Compatibility
Some proprietary multiline telephones are equipped with a headset jack. The programmer can enable a
station port to allow headset operation with these telephone models. The programmer assigns, or in some
cases the user can program, a programmable button at the telephone that the user can press to
enable/disable headset port operation.
Hold
This feature allows a user to temporarily disconnect from a current call yet retain it so that it can be
retrieved. When users place a call on hold, they are free to use their telephones for other calls or features
and then return to the held call. At a multiline telephone, the user can put a call on hold manually, by
pressing a HOLD button, or automatically (if programmed), by pressing another line button. Further,
when a user presses the TRANS/CONF button to transfer a call, the system places the call on hold. The
user can place a call on hold in either an exclusive or non-exclusive manner. Exclusive hold prevents a
user at another telephone from retrieving a call held on a shared line.  Non-exclusive hold allows any
telephone that has line appearance of the held call to pick it up. The transfer hold is an exclusive hold
condition. When a user answer a call on a group intercom and places it on hold, the system keeps this call
on hold on the group intercom. This means that the user who placed the call on hold or any other user
with access to that group intercom can pick up the held call.
The programmer must program each multiline telephone for manual or automatic and exclusive or
non-exclusive hold. When he or she enables automatic hold at a telephone, it does not prevent users from
using manual hold.
Also refer to the various discussions headedAutomatic Hold.
Directed Station Hold
This feature allows station users to pick up the last call a user placed on hold at another station. This
feature does not allow users to pick up exclusive hold calls or calls that are in the process of being
transferred. Also, the feature does not allow users to send a directed call hold to a station where its user is
scanning the currently held calls. In addition, this feature allows users to place a call on hold at another
station and have this call appear to be the one that has been on hold there for the longest time. Features
such as hold recall apply to the station that sent the directed call hold and not to the station that received
the directed call hold.
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							Hold, Exclusive
Exclusive hold prohibits a user from retrieving a held call at any station other than the one where it was
placed on hold. The exclusive hold condition also links the held call to the timed hold recall time-out
feature. After time-out, audible and visual signaling occurs and the exclusive hold condition reverts to a
normal hold condition. The programmer enables or disables exclusive hold as a class of service feature.
Hold Queuing
The hold queuing feature allows a station user to put multiple lines on hold. The LCD speakerphone user
can scroll through this queue of held calls by repeatedly pressing the HOLD button. The numbers or
names of the held lines are shown on the LCD display. When the desired line appears on the display, the
user presses TAP to retrieve it.
Hold Time Reporting
A programmer can arrange for the SMDR/SMDA parameters to convey either the cost of calls that the
stations make or the amount of time that lines have been on hold at the stations. This time includes the
actual hold time as well as the time waiting for transfers and conferences to be completed.
Hot Transfer
A hot screened call transfer allows users to first announce and then transfer both line and intercom calls
from one telephone to another in a special manner. Once users have announced that they are transferring
a call to another telephone, they can then take action to make the transferred call appear at the other
station as if that user has already answered it.  If the recipient of a hot transferred call is using a
speakerphone, he or she merely begins the conversation with the distant party. If the recipient of the hot
transfer is using a monitor telephone, he or she must lift the handset to reply to the distant party.
Also refer to the discussion titledCall Transfer -Screened.
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 user
has a line in-use or on-hold at his or her telephone, the light indication provided is of a different flash rate
than the indication provided at the other telephones in the system.
Idle Line Preference
With idle line preference, a telephone automatically connects to an assigned outside line that is idle and
arranged for this feature. Connection occurs as soon as the user lifts the telephone handset.  He or she
does not have to press a line button.
The programmer assigns idle line preference to a station class of service and then assigns that class of
service to a particular telephone. He or she also assigns the lines that are associated with the feature and
the priority that these lines are to be available. If the programmer enables this feature and the prime line
automatic feature together, the user gets his or her prime line upon going off-hook or an idle line if the
prime line is in use.
Also refer to the discussion titledIdle Line Priority.
Idle Line Priority
When a programmer arranges for a telephone to have idle line preference he or she also specifies the
order in which the idle lines are given to the station. Also refer to the discussion titledIdle Line
Preference.
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							Industry Standard Telephone Support
The DXPPlussupports industry standard (IST) telephones.
Distinctive Ringing
An industry–standard telephone can sound one ring cadence for intercom calls and another for for outside
calls. You must select the ringing style in station class of service programming.
DTMF Receiver–Time-out
You can program the amount of time that the system waits to receive a DTMF tone on an
industry–standard telephone. The DTMF receiver–time-out feature applies to the time between a user’s
lifting the handset and pressing a dialpad digit.
Do Not Disturb (DND)
You can dial a feature code (#01 by default) from your industry standard telephone and put the telephone
into a do not disturb (DND) condition. While in this condition, an outside call forwards to another station
or to the attendant according to the call forwarding feature. An intercom call will not ring the DND
station and the system sends a fast busy signal to the caller to distinguish the DND from a standard busy
line.
Flash Time
The flash time is the timed length of the signal delivered when a user presses the hookflash (or TAP)
button. The installer can program both the minimum and maximum times that define the IST flash.
Hold Confirmation
Hold confirmation allows the industry–standard telephone users to have positive tone feedback while on
hold.
Offhook Treated As Busy
When an industry-standard telephone user takes the telephone’s handset off hook, the IST station appears
busy to the system. This feature prevents the system from ringing an IST station while the station is idle
and off hook making it unable to sound audible ringing.
Message Wait Retrieval Access Code
This feature allows IST station users to respond to a message waiting condition without using the central
message desk. They do this by dialing a special intercom feature code that lets them respond directly to a
waiting message.
Ring Frequency
The system programmer can set a ring frequency of 25 Hz for international applications or set a ring
frequency of 21 Hz for domestic applications. He or she must choose a setting that matches the frequency
of the installed ring generator.
Ring Patterns
Installer can program the ringing pattern for either IST ring mode one or IST ring mode two. Mode one
causes a two-second ring phase while mode two causes a shorter one second ring phase. For this feature
to function properly, the industry-standard telephone interface board must contain firmware revision 2C
Ringing on Busy
When an industry–standard telephone is busy on a call and another call comes to that telephone, the
system sounds three quick tone bursts to the telephone’s handset receiver. You must program the ringing
on busy feature.
Industry-Standard Telephone Support continued on next page . . .
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							Industry-Standard Telephone Support continued . . .
Ringing Time-out
You can program the number of times that the system sends a ring signal to an industry–standard
telephone on a system wide basis.
Ringing Patterns
The ringing pattern can be changed. Additionally, firmware revision 2C or higher must be installed on the
DXIST (industry-standard interface) board. A ringing pattern (mode 2) with pulse duration half the
normal ones (mode 1) can be programmed. This results in shorter ring phases of one-second duration.
Ringing Per Phase
Installers can bridge two ISTs at a single station port but the telephones share the same intercom number.
When installers do this, it reduces the number of ISTs that can ring simultaneously from 96 per cabinet to
48 per cabinet. Bridged ISTs require programming action to match the systems ringing requirements to
the installation parameters.
Ringing Time-out
You can program the number of times that the system sends a ring signal to an industry-standard
telephone on a system-wide basis.
Subdued Off-Hook Voice Announce (SOHVA)
Users can perform a SOHVA from any telephone to an industry-standard telephone if the installer has
programmed the IST in the SOHVA tables according to the SOHVA feature. Users can SOHVA the IST
whenever it is busy on a line or the intercom. The IST user can not respond to a SOHVA call and his or
her outside party will hear the SOHVA caller’s voice.
Station Lock
This feature allows you to lock any local industry standard telephone (IST) being used with a DXP
system. You enable this feature by dialing the feature code (default is #04) followed by your authorization
code. You disable this feature by dialing only your authorization code after hearing the “enter your
authorization code” fast tone. Your authorization code is programmed into the system by the installer.
Also refer to the discussion titled Authorization Codes.
When this feature is enabled, access to lines and features on your telephone are denied to other users until
you unlock or disable this feature.
Interactive Button Support
The system supports three interactive buttons on LCD speakerphones. These buttons and their associated
expanded display messages provide quick easy access to system features and straight-forward button
programming without the need for dialing codes.
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							Intercom Number
The DXPPlussystem provides intercom support in several ways as described in the following
paragraphs. The system provides 480 personal intercom slots and 520 group intercom slots for a total of
1000 available intercom slots.
Personal Intercom Number
The system assigns a unique personal intercom number to every station, and the user of that station has
exclusive use of that intercom number for making calls. However, telephone users can answer personal
intercom calls that ring at another telephone or pick up non-exclusive calls that are on hold there. At
default, the personal intercom appears on a telephone at the intercom button, but it can appear at any
button that the programmer maps for that purpose. Personal intercoms can hunt to other personal or to
group intercoms, depending upon programming.
Group Intercom Number
Group intercom numbers are those that are shared for use by several stations. Any time someone calls a
group intercom number, all stations assigned to the number will ring. The programmer, through station
programming methods, enables a station’s ability to answer and originate calls on a group intercom
number. He or she also maps the buttons on a telephone at which the group intercom numbers are to
appear. The lights associated with these buttons show activity status of the group intercom numbers. In
addition to normal intercom activity, a group intercom can show the appearance of a line that normally
does not appear at the telephone (such as one carrying a transferred call). Group intercom numbers can
appear in intercom hunt lists; however, a particular group intercom number can appear in only one hunt
list at a time.
When a user selects a group intercom and dials a line group code to select a line or dials a code to retrieve
a call from a park orbit, the system places the subsequent line appearance on the group intercom that the
user preselected. the line appearance remains at that group intercom until the user finishes his or her call,
parks it, or transfers it to another telephone.
Station Monitoring
The programmer can make the personal intercom number of one telephone appear at a button on other
telephones in the system. Users at those telephones can use the light associated with this button to
monitor the idle/busy status of that telephone and press the button to make a call to the idle monitored
telephone.
The degree of monitoring that users can do is determined by whether the station monitoring feature that is
assigned to the telephone is on or off. The type of monitoring that they can do is determined by whether
their telephones have a status button that they can use to choose one type of monitoring in place of
another.
When the station monitoring feature is off, the status light shows the state of the monitored telephone. If
the user’s telephone has a status button, he or she can press it to show the busy/idle state of just the
personal intercom number of the monitored telephone.
When the station monitoring feature is on, the status light shows activity status (idle, ringing, busy, and
hold) of the monitored telephone.
The programmer must map a telephone button for each personal intercom that is to appear and, if desired,
map a status button for the user to switch between the types of monitoring. Also, she or he must enable
station monitoring as a class of service feature and assign that class of service to those telephones where
monitoring is required.
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							Intercom Hunt List
The programmer can group up to eight intercom numbers together at an individual telephone to form an
intercom hunt list. The eight numbers can include one personal intercom number and seven group
intercom numbers or eight group intercom numbers.
When someone calls a telephone and it is busy, the call will go to the first idle number in that telephone’s
hunt list and then ring every telephone that has access to that number. An outside line call to a busy
telephone will always go to the hunt list; however, an intercom call will not. To make an intercom call
route to the hunt list, the programmer must include the personal intercom number of that telephone in the
hunt list. The system will not allow you to assign a group intercom number to more than one hunt list at a
time.
When a user has set his or her telephone to forward just prime line and personal intercom calls, those calls
will forward while any other calls to that telephone will go to the hunt list.  When a user has set his or her
telephone to forward all calls, then all calls forward and none go to the hunt list.
Also refer to the discussion titledFeature Renumbering.
Intercom Time-out
Should the user select the intercom for use and then perform no dialing or other action, the intercom will
time-out after 10 seconds (at default) and return the telephone to an idle state.
Intercom Call Progress Tones
Internal call progress is marked by the following special tones: Dial tone sounds steady; ring back tone
sounds one second on and three seconds off; tone signaled internal call sounds a two-tone burst every four
seconds at a called station and returns to the caller as ring back; voice signaled internal call sounds a
single tone burst at a called station and returns to the caller as two tone bursts; busy tone sounds one-half
second on and one-half second off at the calling station, and do not disturb tone sounds a fast busy tone
when the called station is in the do not disturb mode. (The system only supplies OPX ports with the
regular busy tone since fast busy tones could interfere with the operation of some accessories that can be
connected to these ports).
Intercom Inter-Digit Dialing
A timer begins timing out after the dialing of each number during intercom number dialing. It also begins
a time-out whenever the station user accesses the intercom number path and does not dial any digits.
When the timer times out, the system returns the station to an idle state.
K
Key/Hybrid Configuration
Either key system or hybrid configuration is available with the DXP Plus digital communications system.
Whenever the programmer assigns outside lines into line groups and gives individual stations access to
those line groups, the system automatically places itself into the hybrid configuration mode. The installer
does not have to make any physical adjustment to the equipment to achieve the hybrid configuration
mode. The Federal Communications Commission rules and regulations, Part 68, designate a fully
protected hybrid configuration as an MF equipment type category and a key system configuration as a KF
equipment type category. The installer must report the appropriate category registration number to the
telephone company. Operationally, the hybrid configuration enables a PBX feature that may incur a
higher monthly tariff to the telephone company.
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							L
Last Number Redial
The system provides each station with a last number redial feature.  This feature saves 16 digits of the last
outside number dialed at the station. A newly dialed number always replaces a previously dialed number.
When the user presses the last number redial button, the system will choose a line and redial the saved
number. The system will choose the last line used and redial the number. If the last line used is busy or is
unavailable, the system will choose the prime line. If they both are unavailable, the system will choose
any line assigned to idle line preference. If this is busy or unavailable, no further system action is taken;
you must hang up and retry later when a line is available.
Line Access Restriction
Refer to the discussion titledAccess Denied.
Line Answer From Any Station (TAFAS)
The programmer can assign one or more of the four relays, which are located on the central processor
board, to track the ring signal on any or all lines that he or she assigns to them. The programmer can
arrange for the tracked ringing to be during the direct, delayed, day 1, day 2, or night ringing modes.
Typically, the installer wires a relay so that its contact actuation causes an external bell or other device to
sound. Station users can hear an external ringer and dial a code. When they do this, the system allows
their stations to answer any line that the installer has assigned to that external ringer through the relay
programming. Since each site installation can be unique, the installer must explain to the users which
dialing code answers which external ringer.
Also refer to the discussions titledAuxiliary Ringer Interface, Common Audible Ringer Interface,
External Paging Interface, Flexible Ringing Assignments, andNight Transfer (Of Ringing)
Line Appearance, Enhanced
When a telephone user selects a group intercom and dials a line group code to select a line or to retrieve a
call from a park orbit, the system places the subsequent line appearance on the group intercom that the
user preselected. The line appearance remains at that group intercom until the user finishes his or her call,
parks that call, or transfers it to another telephone.
Line Groups
The programmer can assemble and program outside lines together in up to 16 different line groups. Users
can access each group by dialing a different access code or by pressing a line group button. The
programmer can use this feature to reserve certain lines for certain clusters of stations for a tenant-service
arrangement.
Line Group Access
The programmer can assign certain line groups to certain stations for call origination purposes. Stations
may also be denied access to certain line groups.
Line Out Softkey Option
Beginning with software release 4A, the programmer can select between two different interactive button
menu options that LCD speakerphones display when connected to out-bound lines for outgoing calls.
Specifically, this action substitutes a release (RLSE) button for the automatic redial (ARDL) button. This
feature enhances DXPPlusinstallations within the international community because some nations have
specifications in place that disallow automatic redialing.
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							Line Queuing
When several telephones share a line and that line is busy, a user can dial a code and hang up to wait for
the line to become idle. When the line becomes idle, the user’s telephone will ring.
Liquid Crystal Display Support
The system supports the use of LCD speakerphones having a liquid crystal display (LCD). The LCD
speakerphone display may shows many useful messages that guide station users through many calling
situations.
Enhanced LCD Display
The installer can program the system to enhance the display of an LCD-equipped telephone so that it
shows both the name of the calling station and its personal intercom number.
Liquid Crystal Display Messaging
A user can set standard and system supplied custom display messages by dialing a specific code at any
telephone. When a user places a call from an LCD speakerphone, the preset LCD message from the called
station will flash on the caller’s LCD. When a user sets a message, the intercom number light at his or her
telephone flashes to indicate that the feature is active. The attendant programs these messages form his or
her position (30 messages are available).
Location Code
Software release 4A adds the location code feature to enhance system installation in the international
community. When installers set this code for a particular nation where they have installed the DXPPlus,
the DXP system automatically defaults certain system parameters to a setting that meets specifications set
forth by that nation’s technical standards. Also see the discussions titledConference Advisory Code,
Executive Override Advisory ToneandLine Out Softkey Option.
Location Code 1 (USA)
·Standard system default codes for all system features.
Location Code 2 (South Africa)
Standard system default codes for all system features except:
— transmission and receive levels set to meet local standards,
—frequency and cadence of call progress tones set to local standards.
Location Code 3 (Brazil)
·Standard system default codes for all system features except:
— transmission and receive levels set to meet locate standards,
—frequency and cadence of call progress tones set to local standards,
—conference advisory tone turned on and set to provide periodic reoccurring tone,
—executive advisory tone turned on and set to provide periodic reoccurring tone,
—Selectable interactive button menu for LCD speakerphone displays set to substitute
a release (RLSE) button for the automatic redial (ARDL) button.
NOTE: Be sure to notify users of this button change as it is different from information
provided in the user’s guides.
Location Code 4 (Argentina and Chile)
·Standard system default codes for all system features except:
— transmission and receive levels set to meet local standards,
—frequency and cadence of call progress tones set to local standards.
Location Code 5 (Israel)
·Standard system default codes for all system features except:
— transmission and receive levels set to meet local standards,
—frequency and cadence of call progress tones set to local standards
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							Lock Button
When the installer maps a telephone with this button, a user can press the button and dial an authorization
code to deny other users access to lines and features at his or her telephone.
Also refer to the discussion titledAuthorization Codes.
M
Manual Exclusion
Refer to the discussion titledPrivacy Release.
Manual Reset
The system provides a button on the central processor unit circuit board for manually resetting the
software. When someone presses this button, it causes the system to reset all lights, features, line states
and station states.
Mark Problem Line
With this software release 4A feature, system users can mark a line that is not functioning properly as a
problem line. They do this by dialing a feature code or pressing a pre-programmed button. After users
have marked a particular line a programmed number of times, the system takes the line out of service
(unless programmed to prevent this from happening). When the system takes the line out of service, it
logs the condition and triggers an alarm. The printed error log will then show which line is out of service
and so will the displayed error log. An out of service line is only out of service for line group use; it is
available for direct selection or prime line access. Further, an out of service line is available for all
inbound calls unless it is a DID line. The CO will not send a call over a disabled DID line. Users can not
mark a line during a conference call or when they are DISA callers. When users mark a line during an
active call, the system records the mark for the active line. If users take marking action during an idle
condition, the system records the mark for the last active line (this includes lines that are presently on
hold).
System users can use the line disable feature at the programmer’s station to restore service on the out of
service line. Programmers can restore service to individual disabled lines or they can take action to restore
service to all marked lines in the system if they wish.
Master Clearing The System
When master clearing the system, the installer can set the parameters to one of three settings.
Mode 1—Key-Like Mode
At default, assigns line appearances for every multiline telephone but does not assign group intercoms in
any station hunt list.
Mode 2—PBX-Like Mode
At default, assigns no line appearances but does default two unique group intercom appearances for every
multiline telephone in the hunt list.
Mode 3—All-clear
This option defaults the system with no button mapping, group intercom access, or extension numbers for
stations.
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