Comdial Dxp Plus Instructions Manual

							Answer Button
When you map a telephone with this button, the user can press it to answer the call that is audibly ringing
at his or her station. It is possible for more than one call to be ringing at the same time; however, only
one of the first ringing calls is answered with the answer button.
Also refer to the discussion titledProgrammable Button Flexibility.
Area Paging Interface
Refer to the discussion titledExternal Paging Interface.
Attendant Position
The attendant of a telephone system is typically the first person to answer an incoming call and usually
directs incoming calls to the proper person or department within the system.  In addition to call control,
the attendant controls system-wide operating features such as night transfer (of ringing) and the system
clock. Additionally the attendant is responsible for programming such items as system speed dial
numbers and LCD messages that are available to many of the system users.
The DXPPlusprovides two attendant positions at default (stations 1 and 2, intercom 101 and 102);
however, the programmer can assign any or all stations (up to 480 total) as attendant stations if they wish.
The attendant can also assign up to four DSS/BLF consoles to each attendant position where needed. In
addition to the many programmer–enabled feature buttons that the system can make available at any
station, the DXPPlusprovides the attendant position with several special purpose programmer-enabled
feature buttons to enhance call processing. These special purpose buttons are described below.
Alternate Button
When an attendant presses this button, all calls that are normally routed to his or her telephone now route
to an alternate attendant’s telephone instead.
Both Button
The “both” button provides a means for attendants to conference between themselves, a current call, and
the last call that they placed on hold.
Overflow Button
When an attendant presses this button, calls that normally ring at his or her telephone also ring at an
overflow attendant’s telephone as well.
Queue Button
When multiple calls are ringing at an attendant station or are on hold there, the system places them in a
queue. The attendant can use this button to determine how many calls are queued and awaiting service.
Serial Call Button
When a caller wishes to speak to more than one person or department, the attendant uses this button to
place the caller in a serial mode of multiple transfers to every desired party. In the serial mode, the
system automatically transfers the caller to another party as soon as a present party hangs up (up to three
stations can be part of a serial transfer). The system places the caller in the serial mode as soon as the
attendant hangs up.
Test/Busy Button
This button provides the attendant a means to test the status of specific lines. Attendants can use this
button to determine whether individual lines are idle, busy, on hold, or out of service.
Also refer to the discussions titled Answer Button, Lock Button, Release Button, Split Button, and Silent
Mode Buttonand to the discussion titledProgrammable Button Flexibility.
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							Attendant Position, PC
The Total Control PC attendant position is a computerized attendant operating station that consists of an
IBM-compatible personal computer, a proprietary interface circuit board (factory-installed in one of the
computer’s expansion slots), a customized keyboard that includes a handset cradle, a telephone handset, a
program diskette, and all necessary cables for connecting the equipment to the DXPPlus. The DXPPlus
can handle a maximum of four PC Attendants.
Among the many features that are available to the PC attendant is a feature that allows him or her to
change the class of service of an individual station. This feature allows an attendant to control the calling
parameters of a station (such as how much or little toll restriction to allow) at any time.
The installer can program function keys F1–F12 on the PC attendant keyboard with features that are in
addition to the fixed features that these keys provide. To access the additional features, the attendant must
press and hold the CONTROL key while pressing the desired function key on the keyboard.
Authorization Code
Authorization codes have a “walking class of service” option. Walking class of service provides system
users the mobility to use their class of service (COS) features, prime line assignments, and exception
numbers on any telephone in the system instead of being limited by what is available to the particular
telephone they happen to be using. Authorization codes are associated with personal intercom numbers as
is COS, prime markings, and exception numbers. Therefore, when a user enters his or her authorization
code at any system telephone, the code alerts the system as to what features to make available to the user.
The user can use the telephone for anything allowed by his or her personal intercom number; however, a
user cannot disturb the last number redial stored there by the normal user. Once a user accesses his or her
telephone features, those features remain in effect until any idle time exceeds the authorization code
time-out period. A telephone user activates walking class of service by pressing ITCM and then dialing
#08 followed by an authorization code. Also refer to the discussion titledLock Button.
Automatic Dialing
Refer to the discussion titledStation Speed Dial.
Automatic Hold—Intercom To Intercom/Line
If a user selects a second intercom number during the time that he or she is already active on the first
intercom number, this feature causes the first intercom number call to be automatically placed on hold.
This feature allows a user to move from intercom call to intercom call without having to press the HOLD
button to place any current calls on hold. The programmer must enable this feature for it to be available.
Automatic Hold—Line To Intercom
If a telephone user selects an intercom number while a line call is active, this feature causes the system to
automatically place the line call on hold . This is a fixed system feature and is always available.
Automatic Hold—Line To Line
If a user selects a second line during the time that he or she is already active on a line, this feature causes
the system to automatically place the first line call on hold. The feature allows a user to move from line
call to line call without pressing the HOLD button. The programmer must enable this feature for it to be
available.
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							Automatic Number Identification (ANI)
Automatic Number Identification (ANI) is a T1 service feature for both E&M and DID lines. Long
distance common carriers offer ANI as a feature to dial 800 and dial 900 lines. The ANI feature provides
information to an internal telephone system that identifies the telephone number of the calling party.
Businesses served by a dial 800 or dial 900 service allow any available user to answer the calls and have
their internal telephone system process the ANI information to identify the caller’s telephone number.
The common carrier supplies ANI information as DTMF digits. When the ANI feature is combined with
the Dialed Number Identification Service (DNIS) feature, the common carrier also delimits the DNIS
information from the ANI information with an asterisk ([) tone so that the DXPPluscan process each
portion properly.
Automatic Pause Insertion
When the system stores a dialed number for later redial, it automatically stores a pause whenever the user
waits between digits for at least two seconds while dialing the number. The system inserts the automatic
pause in the stored number sequence at the point where the manual pause in dialing occurred.  The actual
time length of the inserted pause is programmable.
Automatic Privacy
The programmer can make a line private or non-private. In the private mode, a station has exclusive use
of the line during a call. No other station can access that line unless the original user includes it through
the use of the add-on conference feature.  In the non-private mode, any stations with that line appearance
can gain access at the same time (sometimes known as common line pickup). Users may add up to five
parties into one conversation. Also see the discussions titled:Conferencing —Multiline and Privacy
Release.
Automatic Redial
With this feature, the system automatically redials a busy or unanswered outside call. Once the user
activates automatic redial, the station selects the line, automatically dials the number, and waits for a
response.  (It dials and then waits 30 seconds for an answer.) If the called station does not answer, the
redialing station disconnects, waits one minute, and then repeats the sequence. The station will repeat this
procedure for approximately 10 minutes. The feature cycle is timed and does not have busy and
ring-no-answer detection circuitry. Because of this, if the redialing user is operating handsfree when the
called party answers, he or she must take the handset off-hook to prevent being cut off by the timing
cycle. The station users must program an Auto Redial button at one of the designated programmable
button locations on their telephones before they can use it.
Automatic Reports
This feature makes the system automatically generate selected station message detail accounting and call
costing reports for printing on a daily or weekly basis.  The programmer sets the time that the report is to
be printed, sets the type of report to be printed, and dictates whether the call records are to be erased from
the system memory after they have been printed.
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							Automatic Route Selection
Automatic Route Selection (ARS) allows the system to automatically select the least costly line group
available to a station to route a call. The system modifies the dialed number, if needed, to match the
selected line group. Additionally, ARS provides the costing information for the dialed call that is
reported by the station message detail accounting feature.  ARS makes routing decisions (which lines to
route a call over, if and how to modify a number, and costing information) based entirely upon the
programming of the system.
When the ARS feature is active, the user selects ARS by dialing 9. Because direct line selection by the
user bypasses the ARS route selection feature, the programmer normally does not give stations direct line
appearance when ARS is part of the system operation.
The ARS feature can operate with the toll restriction feature or independently from it; however, both
features use the same entry table for programming. The programmer enables or disables automatic route
selection on a system-wide basis. A defaulted system has ARS disabled.
The programmer must program a number and the proper routing information before the system can
perform ARS on that number when it is dialed. The programmer generally arranges routing from the least
costly routing method to the most costly routing method. The cost of the route is determined by the line
group over which the call is routed.
If a station does not have access, because of programmed restrictions, to a route that the ARS selects for
it, the system denies the dialing and causes an error tone to sound at the station. If the station does have
access, ARS routes calls from that station based on the routing information.  If the call can not be made
on the line group first selected by the routing, ARS will try the next route. Once again the route access is
tested. This process is repeated, up to a maximum of six times. Each route is programmed from least to
most costly.  The more costly the route, the higher the access level needed to access it and the greater the
chance that the station will be denied access. If ARS selects a more costly route because the least costly
one is busy, a station user receives a warning tone when a call is attempted.  Since this tone indicates that
a more expensive line group was chosen by the system, the station user should hang up and try again later.
This warning tone feature is enabled through programming.
Before automatic route selection can operate efficiently in a cost saving manner, the programmer must
group similar lines together into line groups.
Each route in every route table contains costing information. The costing information includes two
programmable tiers of costing and a programmable surcharge amount. Even if a call is not routed through
ARS, (if the station user selects the line), the system still accesses this costing information to cost the call.
The programmer can arrange the automatic route selection feature so that it modifies the dialed number
by adding or deleting digits until the number better fits the dialing needs of the selected route. Doing this
results in situations such as the following example:
Assume a station user dials 12025551212 (Washington D.C. area), and further assume that the system has
an FX line to the Washington D.C. area and ARS will route the call over it. ARS will delete the 1202
prefix and only dial 5551212 because the FX line does not require the prefix numbers to complete the
call. Field maximum: 20 digits.
You can program the system for any one of three different dial tones that you will hear whenever you
enter the ARS access code. The ARS dial tone choices are:
— Dial Tone 1 - steady intercom dial tone (dual tones of 480 Hz + 620 Hz),
— Dial Tone 2 - same as dial tone 1 only preceded by three short tones (200 ms on, 200 ms off),
— Dial Tone 3 - steady simulated central office ring back tone (dual tones of 440 Hz + 480 Hz).
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							Restrict ARS Hookflash (Automatic Route Selection, Hookflash Restriction)
This feature enhances ARS response to hookflash action on an outside line when that action is followed
by dialed digits. With the feature enabled, the system delays response to a hookswitch flash until after the
ARS feature verifies as valid all subsequent dialed digits. With the feature disabled, the system sends the
hookflash over the line without waiting for the ARS feature to verify the validity of subsequent dialed
digits. This station class of service feature is applicable only when the ARS feature is active.
Automatic Route Selection For Speed Dials
The programmer can arrange for the system to route the system speed dial and any personal speed dial
numbers that the user has programmed through the system’s automatic route selection feature (ARS).
Automatic Station Relocation
The system will automatically recognize a particular station should someone relocate it to a different
station port. After being installed at a new port location, a relocated station will provide the same class of
service parameters and station features that it provided at its original port location. Also, the relocated
station will respond to the same personal intercom number that it responded to at its original port location.
A relocated station prompts the user to take action to either accept its original programming or accept the
programming at the new port. If the user takes no action, the station assumes the parameters and personal
intercom number that is determined by a system programming procedure. Consider these following points
when you enable station relocation:
·If someone does a station relocation, the programmer must save the database programming to make the
relocation permanent.
·This relocation feature only applies to digital telephones.
·Users must ensure that the vacated port remains unused until they complete a relocation.
·If someone connects a telephone to the vacated port before users complete a relocation, the relocated
telephone will not retain its original programming.
·When the user accept the original programming for the new port, the vacated port assumes the
programming currently assigned to the new port (that is, a parameter exchange takes place between the
vacated port and the new port).
·If a DSS/BLF console was assigned to the telephone at its original location, the console assignment
follows the telephone to the new location even though the console is no longer located physically near
the telephone. If the user relocates the console, the system programmer must reprogram the new port
for console use.
The relocation feature also applies to relocated digital telephone boards, however, the installer must
ensure that the vacated port remains unused until the relocation is complete. All stations connected to the
relocated circuit board show the relocation prompt.
Auxiliary Equipment Interface(Busy Lead Detection)
One line port on every loop start line board will detect current flow on the line ahead of the common
equipment. When an external device, such as a modem or fax, is connected to this line and is activated,
current flow over the line occurs. When the port detects the current flow, the system causes a busy
indication for this line to appear at every system telephone that has its appearance. Normally, the user
cannot interrupt an external device by pressing the line button or by dialing a line group code; however, if
the line is programmed to be non-private, a user can interrupt the device.
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Understanding The Features – 53 
						

							Auxiliary Station Ringer Interface
The central processor unit circuit board includes four dry-contact relay actuations. They may be used for
the following:
·Programmable Station Ringer Interface
·Paging Enable
·Door Relay Lock/Unlock
·Zone Night Answer
The relay contacts for the station ringer interface follows the ring pattern of a ringing line or telephone.
These relay contacts close during ringing and open between rings and may be used to control an external
signaling device. The relay contacts for the paging enable and door relay are closed while the activating
station is off-hook and may be used to provide a path for an enabling signal where needed. Contacts on
relay 1 is normally closed when idle and contacts on relays 2, 3, and 4 are normally open when idle.
Also refer to the discussions titledCommon Audible Ringer Interface, External Paging Interface, Flexible
Ringing Assignments, Line Answer From Any Station, and Night Transfer (Of Ringing).
B
Background Music (Two Selections)
If the system includes an external music source, telephone users can turn background music on and off at
their stations. The system uses two dedicated audio ports to interface the music sources, one for
background music through the station speakers and the other for music on hold for both lines and
intercom numbers. Therefore, the background music can be different from the music provided to held
calls if the system installer connects two different sources to the system.  When the two different choices
are available, station users can dial a code to choose either source for their background music.
Also refer to the discussions titledMusic InterfaceandMusic On Hold.
Battery Back-Up (Chassis, Cable, and Batteries)
Battery back-up assemblies that include chassis, cable, and battery are available as optional kits (through
normal distribution from Comdial). The battery back-up assembly connects directly to the battery
interface connector on the system main power supply.
Battery Backup Interface
Attach a Comdial-provided optional battery backup kit to the DXPPlusdigital communications system
for full un-interruptable system power in case of an AC power loss. The switching and trickle charge
circuitry are in the common equipment power supply assembly, but batteries, chassis, and cable are
packaged as a separate option. When the installer plugs the system into an active AC power source, the
common equipment power supply 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 (without expansion cabinets) will remain fully functional for a minimum of
one hour without AC power.
If additional time is required, the backup time can be increased by adding additional batteries.
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							Block Programming
A programmer can assign the programmed features of a particular line or station, to other lines or stations.
He or she can also assign a particular arrangement of button functions (mapped buttons) of one telephone
to a quantity of other telephones. This feature eliminates the need to individually program every station
class of service, line and/or button function.
Busy Button Inquiry
This feature provides the user with a means to identify both a station that is busy on a line and the line the
station is busy on as well. The system presents the identified line or station information on the user’s
telephone display for 10 seconds after he or she requests that information. If the system installer has not
given the user’s telephone this feature, the system presents busy information to the display without
identifying the line or station involved.
Button Mapping
Refer to the discussion titled,Full Button Programmability Of Features, Programmable Button
Flexibility, and Square / Non Square Configuration.
Button Query
The button query feature allows users to display the function of programmable buttons on LCD
telephones.
C
Call Announce With Handsfree Answer-back
The internal speaker at each full–featured multiline telephone provides call-announce capability over the
personal intercom number. Users can call announce between all telephone types except between an
analog monitor telephone and digital telephones. When a user makes a call-announce intercom call to the
personal intercom number of another telephone, the user of that telephone can make a handsfree response
to the call. If the personal intercom number is forwarded or is in a hunt group, the intercom call will
appear as a tone signaled intercom call at the telephone to which the calls are forwarded. A tone burst,
programmable by the installer, precedes the call announce.
Call Announce Beeps (Call Announce Tone Bursts)
Installers can set the number of call announce tone bursts for each station in the system to be a value of
from one to five .
Call Costing And Station Message Detail Accounting Reports
The system provides built-in, estimated costing of all calls. It also provides station message detail
accounting (SMDA) reports of all calls, and it displays 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 does not restrict dialing as
toll restriction does. Call costs are based on a two-tier time rate and include a line surcharge cost. The
programmer can make allowances for call set-up and minimum call duration using the answer time and
dial time parameters. The system determines call costing through the use of the toll restriction and
automatic route selection (ARS) features; however, these features need not be active for costing to work.
Call costing is based on programmed estimates that best fit the particular area of the country the system is
installed in.
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							Caller ID
DXPPluscaller ID provides relevant caller information (caller’s name and number, for example) to any
called LCD  stations. The installer can program any C.O. line as a caller ID line. The caller ID
information is also reflected in the SMDA printout. The DXP Plus Caller ID feature package requires the
use of a CID08 unit—hardware designed to support the Bell 202 Caller ID signal transmitted by the
central office.  The CID08 supports up to 8 CO lines (you can install up to 8 CID08 units), for a total of
64 caller ID lines.
Caller ID RNA—Ring–No–Answer
If a station with  assigned caller ID lines receives a call but does not answer, the system will
automatically archive the caller ID information.  The installer can program any station or group of
stations to receive Caller ID RNA information. Upon reviewing a Caller ID RNA record, the user can
automatically redial that number by pressing the SAVE button. When the caller ID information goes to
more than one telephone, the system will also display the last station user that viewed that record, thus
preventing multiple call backs.  Caller ID RNA is a programmable feature.
Call Forward—All Or Personal
Station users can forward the calls that normally ring at their telephones to another telephone for
answering. They can forward just their prime line and intercom calls or forward every call that rings at
their station. If users forward calls while the attendant has enabled the night transfer of ringing mode, the
night mode ringing assignments at their stations are forwarded. There are multiple levels of forwarding.
Station A can forward to station B, then station B can forward to station C, thus making calls to station A
forward all the way to station C. For each internal call received while call forward is enabled, the
forwarding telephone sounds a ring reminder (short tone burst) to remind the users that their calls are
being forwarded.
The programmer can assign a call forward button to individual telephones. If a telephone has a call
forward button available at a programmable button location that includes an associated light, the light
turns on when the user presses the button.
If a telephone has an LCD display, it will show a call forward message along with the extension number
or name of the station receiving the forwarded calls.
Also see the discussions titledCall Forward— Busy Or Ring No-Answer, Call Forward—Manual,and
Default Busy Ring No-Answer Call Forward.
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							Call Forward—Busy Or Ring No-Answer, All Or Personal
Station users can forward the calls that normally ring at their telephones to another telephone for
answering. They can forward just their prime line and intercom calls or forward every call that rings at
their telephone. Users can control whether the calls forward immediately or after a preprogrammed
number of rings (this is true of busy calls as well, which ring in a subdued manner) that is set by the
programmer. When the telephone is set to ring several times before forwarding, the user has a chance to
end the current call before the incoming call is forwarded. Certain conditions must exist before this
enhancement will allow the call to a busy station to subdue-ring before forwarding. The called station
must have an idle intercom available and this intercom number must be part of the intercom hunt list that
the programmer arranged for the station, or the call to a busy station will forward automatically. The
number of group intercoms in a station’s intercom hunt list determines the number of calls that can
subdue ring on a busy station. After the system reaches that maximum number, any additional calls
immediately follow the station’s forwarding assignment.
When a busy station receives a call on a line for which it has an appearance, the call will forward
immediately. If the station does not have a line appearance but does have an idle intercom in its hunt list,
the call will subdue–ring at the idle intercom for the programmed number of rings before it forwards.
When a busy station receives an intercom call or a transferred call and it has an idle intercom in its hunt
list, the call will subdue ring at the idle intercom for the programmed number of rings before it forwards.
The programmer must enable the call forwarding enhancement as a separate programming choice in
addition to class of service programming. Once the feature is enabled, it will enhance both the default
call forward scheme and the call forward scheme that the users set up for themselves.
Also see the discussions titledCall Forward - All Or Personal, and Default Busy Ring No-Answer Call
Forward.
Call Forward—Immediate
The installer can map a call forward button on the user’s telephone that will allow the user to forward
calls even if he or she is not busy. After a user determines where to forward a call and activates the call
forward button, the system will immediately forward the call once the line rings.
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							Call Forward Outside System
The Call Forward Outside System (CFOS) feature allows the system to forward incoming or transferred line calls to
telephone numbers that are outside the system. The CFOS feature forwards calls over any available outbound lines
or line groups and does not use any conference circuits. Since CFOS involves outbound calls, those calls are subject
to all line access, toll restriction, and automatic route selection restrictions normally imposed on the users. Any calls
that CFOS can not service (no outbound line available, toll restricted, and so forth), ring the system as normal calls.
Note also that CFOS will not forward calls associated with group intercoms and hunt groups. The CFOS feature is
useful for after-hours forwarding of business calls to alternate sites such as a home or cellular telephone. To help
system managers keep account of CFOS activity , the system marks CFOS calls with an
Fin the SMDA records
printout.
Users activate or deactivate CFOS by dialing a feature code, pressing a preprogrammed button or pressing an
interactive button on an LCD speakerphone. Once users activate CFOS, they select the outbound line or line group in
any of the normal line selections methods available to them. They also designate the forward destination by dialing
the number or pressing a speed dial button. (If users do not make a line and destination choice, the system uses the
most recently used selections.) DISA callers can activate and deactivate CFOS remotely. When DISA callers activate
CFOS, they receive several quick tone bursts and the system awaits any program changes. When they deactivate
CFOS, the system returns dial tone. After they gain access to the system, they can dial the CFOS code, dial an
outbound line or line group selection, and dial the destination number. Once a user activates CFOS, it remains active
and neither system resets nor power outages will deactivate it. After activation, incoming or transferred calls to an
idle CFOS-enabled station forward outside the system to the CFOS destination over the selected outbound line or
line group. CFOS-forwarded calls are subject to the line-to-line disconnect timer action. If time-out occurs, the
system alerts the system operator. He or she can join the call as a conference member.
Before CFOS can occur for calls on incoming lines, programmers must enable those lines for CFOS capability.
Before a CFOS-enabled station can forward a call outside the system, the system must be able to associate the call
receiving line with the station.
·Programmers can take action to associate a CFOS-enabled line with an individual CFOS-enabled station. With
this arrangement, this station is the only one that can forward to an outside destination for a call received on that
line.
·At sites served by DID line blocks, programmers must enable those lines for CFOS capability but they do not
associate the individual lines with specific CFOS-enabled stations. The system uses the DID translated station
extension to check for the station’s CFOS forwarding ability.
·When another station transfers a call to a CFOS-enabled station, the feature does not require a line association
with the CFOS-enabled station for it to forward the transferred call outside the system. In this case, the system
identifies the CFOS-enabled station before it makes the transfer.
In addition to the line programming action discussed previously, programmers enable CFOS system-wide with a
system programming choice. They then enable the feature in both station class of service and individual station
programming, and may map a CFOS button on the applicable telephones. When mapping the button, programmers
can also select a destination number; however, any user selected destination number overrides this selection.
Comdial has taken reasonable steps in the design of all product features, including CFOS, which protect against
unauthorized or fraudulent access to, or use of, a system, or which protect against unauthorized, fraudulent or
unaccounted-for access to, or use of, long distance lines. However, no system is entirely invulnerable or immune
from unauthorized or fraudulent access or use, or unaccounted-for access or use, and therefore Comdial disclaims
any and all liability, and makes no warranty, express or implied, relating to unauthorized or fraudulent access or use,
or unaccounted-for access or use.
NOTES: (1) CFOS will not work on loop start lines without disconnect supervision.
(2) Calls forwarded through CFOS may experience lower audio levels due to the normal line resistance of CO
lines. Low audio level is usually only noticeable on long line loops. If signal loss is a problem at a particular
site, the installer may need to add a line amplifier (repeater) in the lines.
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