Comdial Impact Dsu Instructions Manual

							The system will automatically provide a report whenever the costed call storage reaches
95 percent of capacity. Additionally, the programmer can arrange for these reports to be
printed automatically at a specific time of day.
The system can produce five different SMDA records:
·Detailed report sorted by stations,
·Detailed report sorted by account codes,
·Line summary report,
·Department summary report,
·Department Call Distribution (DCD),
·A general output of all records.
Upon completion of report printing, the telephone attendant can delete all records the
system used for the reports. The system will not delete any call records created between
the time the report printout was started and completed. If the attendant does not delete the
reports after they are printed, a later command to delete records will delete all records at
that point and not just the ones that were printed in the previously generated reports. The
programmer can take programming action to always delete the records after they have
been printed. The attendant has the ability to request particular reports to be printed at
any time they are required.
The programmer can establish account codes to allow system users to identify calls by
category or by any other desired grouping so that the system can report costing by that
category or grouping. Further, the programmer can define department numbers and
assign stations to different departments so that the system can produce call cost reports
on a department-by-department basis.
Programmers must use call costing and SMDA reporting class of service programming to
set the costing features, and assign stations to specific SMDA departments using the
station class of service programming. He or she can also enable the LCD speakerphone
display of costed calls through station class of service programming.
SMDA Reporting Through VDT Programming and Per-Station SMDA
The programmer can use the VDT programming option to request that the system send
SMDA reports to either data port A or data port B for printout. It is also possible to use
this feature remotely through a data communications arrangement to capture SMDA
reports. In addition, the system provides SMDA station reports for individual stations
when the attendant requests them by dialing certain code numbers at station 10 or 12.
Note, however, that the system can provide only one station report at a time.
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							Station Message Detail Recording (SMDR)
The SMDR feature generates a call record for printing as soon as the system collects the
record. It presents the call record at an RS-232 level as ASCII transmit data in an
80-column format at the data port available for that purpose.
Call Forwarding
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 the user has call
forwarding enabled when the attendant activates night transfer of ringing, the system
forwards the night ringing assignment of the user’s station. Calls that the system
forwards to a recipient station can be forwarded again by that station user to another
station. Thus, 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. As a reminder that call forwarding is
enabled, a short tone burst will occur at the user’s station for each intercom call that it
receives while its calls are forwarded.
When the programmer has assigned a call forward button to a station, its associated LED
will turn on to indicate that the feature is enabled when the user presses it; however, if
the call forward button is programmed as a second level to a DSS/BLF button, the system
reserves the LED indication 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.
Call Forwarding—Personal
Call forwarding of personal calls allows a station user to designate another station
number (or the attendant station number) to be the recipient of intercom and prime line
calls normally directed to that user’s station.  For each intercom call received while call
forward is enabled, a ring reminder (short tone burst) will be sounded at the forwarding
station to remind the user that his or her calls are being forwarded. 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.
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							Ring-No-Answer Forwarding Of Transferred Calls
This feature enhances the existing automatic RNA call forwarding feature to include
forwarding of transferred lines to individual stations. When a telephone user transfers a
line to a station, the call will ring at the station receiving the transfer for the programmed
number of rings. After that, the call will start ringing at the station that is hunt-linked to
the station first receiving the transfer. If that station is also hunt-linked to another station,
the call will follow that link. When the transfer recall time expires, the call will recall
back to the station that initiated the transfer. The hunt link can be a circular one. The
transferred line will circle the hunt link until it recalls. Alternately, the station can be
hunt-linked to voice mail so that a transferred call will forward to the station’s voice mail
box if it is unanswered. For this feature to work properly, the following details must be
considered:
·you must hunt-link the station receiving a transfer to another station;
·you must program the number of rings to occur before forwarding;
·you must insure that the transfer recall time is larger than the total time of RNA to
all hunt linked stations (if it is not,  the transferred call will recall before the call
gets to the end of the hunt link).
For an example of this last consideration, assume station 12 is hunt-linked to station 13
which is also hunt-linked to station 14. Further assume that station 12 and 13 have their
RNA’s set to two rings. A call that is transferred to station 12 will ring there twice, then
it will ring at station 13 twice, then it will ring station 14 until transfer recall time expires.
Each transfer ring cycle is approximately four seconds; therefore, the line will ring the
station for approximately eight seconds before it moves to the next station. Since there
are three stations linked together, this event will require 24 seconds. This means that you
should set the transfer recall time for 25 seconds or higher.
You can use this formula to determine minimum transfer recall time:
If:
4 = transfer ring cycle time in seconds
R = how many RNA rings assigned per station
S = how many stations are in hunt list
Then:
4 x  R x S = minimum transfer recall time
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							Call Park
The call park feature is similar to a manual hold condition. A user can park a call a
particular station and retrieve it at any station in the system by dialing the appropriate
access code.
NOTE: The retrieving station must have access to the line on which the call appears.
Calls are parked and retrieved 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 preprogrammed length of time automatically returns to a timed hold
recall condition at the station where the user originally parked the call.
See also,Hold.
Call Pickup
Directed Call Pickup
A station user can dial a code, followed by the extension number of a ringing station, to
answer the ringing call.
Group Call Pickup
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 may dial the group pickup code and answer the call.
Four different groups can exist with any number of stations in a group. Overlap is
provided by allowing stations to be in more than one group thus enabling those stations
to pick up for stations in more than one group.  The programmer must place the system
stations in logical answering groups by group them together using the station class of
service programming.
Call Transfer
Screened Call Transfer
Screened call transfer allows station users 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,
a user effects a common line pickup transfer. If the other station does not have access to
the incoming line, the user uses the transfer/conference button to effect the transfer. For a
screened transfer, the transferring user precedes the transfer with an announcement to the
party that is to receive the transferred call.
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							Unanswered Call Transfer Recall Timing
A transferred call that is unanswered after a pre-programmed length of time will return to
the station that transferred it. The system will return the call to both attendant stations
when the tandem attendant feature is enabled. When LCD speakerphones are employed,
the display will show the station number or name as well as the line number that is being
re-called. The system class of service programming determines the recall time for an
unanswered call transfer.
Unscreened Call Transfer
A user can transfer a call to another station without first announcing it. The transferred
call will camp-on to the other station where it will ring and await an answer. The call will
automatically ring back to the transferring station after a programmable recall period.
There is no limit as to how many calls users can camp-on to another station. A
transferred call will only ring if the station is idle. If the station is busy, the call will wait
until it is idle before it rings. The programmer can use the system class of service
programming to set the recall time for an unanswered transferred call.
Call Waiting Tone
A telephone user can signal a busy station with the call waiting tone to indicate that he or
she wishes to contact them. Users dial a special code to activate the call waiting tone.
Caller ID
The central office sends Caller ID data along lines assigned to the Caller ID service.
Caller ID information is displayed at a system LCD speakerphone only if the
programmer assigns that telephone to the Caller ID service, and then only for those
Caller ID lines that are assigned to that station and arranged to perform as follows:
·ring audibly
·can be answered by user pressing button for the ringing line
·are transferred to the station.
The station receives Caller ID data between the first and second rings. A programmer can
enable the first ring for a line assigned to Caller ID to be either audible or silent.
Selecting the “silent” option ensures that the Caller ID data is displayed prior to ringing,
nearly eliminating the loss of Caller ID data.
Station users may automatically retrieve and dial the last Caller ID number displayed at a
station by using a preprogrammed SAVE recovery button. Because the programmer can
store the local area code and up to 100 6-digit area code and local office codes, ten-digit
Caller ID numbers can automatically be transformed into a format that can be dialed.
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							(seven-, eight-, and eleven-digit Caller ID numbers are already in a format that can be
dialed and do not need to be transformed.)
The system will dial those numbers that are present in the 6-digit table as local calls even
if they are in different area codes.
All Caller ID features require that the Caller ID decoder device (product code CID08)
deliver Caller ID data to the system’s RS-232 data port B. The programmer must
configure this port to match the output of the Caller ID decoder device. The
recommended configuration is 9600 baud, with eight data bits and one stop bit. The
programmer must use VDT programming to do this.
Caller ID distribution is in the form of messages which specify the Caller ID data for
lines with incoming calls, and identify the stations answering such lines. The data is in
the ASCII format and is suitable for use with PC-based application programs.
Calling Station Identification On BLF
If a user has stored the station number of a calling station into the direct station
select/busy lamp field (DSS/BLF) of his or her station, the flashing of the corresponding
BLF light will identify the caller. The BLF lights also indicate the status of the DSS
telephone using the department pilot number.
Class Of Service
Block Programming
A programmer can assign a particular line or station’s class of service to an entire block
of lines or stations with one programming action. This feature eliminates the need for
him or her to individually program stations and lines with the same class of service. A
programmer can perform a block programming class of service after he or she has
programmed a station class of service or line class of service for a particular station or
line.
Class Of Service Programming (From Main Station)
Class of service (COS) programming is used by the installer/programmer to configure
and assign all system, line, station, and special purpose operating features. The
installer/programmer enters COS programming by dialing an access code over the
intercom line. System administrators can enter COS programming with another code to
reprogram any system, station, or special purpose operating feature that may require
change at a later date. Line reprogramming ability is not available through system
administration programming. The system attendant can reprogram certain system-wide
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							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/programmer) to the lowest (the station user) level with a higher level
programmer having the ability to do anything a lower level programmer can do without
exiting a current programming mode. However, only the station user can program the
speed dial and autodial locations at a telephone.
All class of service (COS) programming is performed from station 10 or 12. Any station
and console combination will function in this mode and provide visual feedback with the
LED associated with the programming button. By employing an LCD speakerphone,
however, the programmer will have the benefit of display prompts and verifications to
simplify and clarify the programming procedures.
Flexible Station And Line Class Of Service Control
The extension number of a station and all other programmable attributes that are initially
assigned to a particular station port and the line, along with all programmable line
attributes that are initially connected to a particular line port can be re-assigned to a
different port through programming action. This feature allows adds, moves, and changes
without re-locating the station and line wiring. A programmer can use line and station
class of service programming are used to reassign stations and lines.
Class Of Service Programming (From Video Display Terminal)
A programmer can use an asynchronous, serial data terminal with an RS-232 interface to
effect class of service programming through menu-driven procedures. For more
information on VDT programming, see section 3.2.2
Class Of Service Program Printout
The common equipment provides serial data ports that the installer can use 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
programmer can use the data printer service class of service programming procedure to
specify the nature and extent of each requested printout. He or she can use the system
class of service programming to specify the bit-length and baud rate of the data.
Default Functional Program
At initial power-up, the system sets the operating features to a specific group of operating
conditions (default conditions). The default conditions provide a complete operating
system for normal use. The installer can leave the system defaulted or reprogram as
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							desired. After a programmer has reprogrammed a system, he or she can re-default it by
using the system, line, and station class of service programming or use a master clear to
default the entire system and erase all stored programmable button information.
Remote Programming And Administration
Both remote class of service programming and the transmission of SMDR data for
printing are available through serial data ports. The system supports X-on X-off terminal
control codes as well as a DTR signal for handshaking. The system data communications
operates per the popular XMODEM protocol. The database can be uploaded or
downloaded, error free, from or to a remote computer that is running software that
supports the XMODEM protocol. The two serial data ports allow VDT programming
(either local or remote) to be conducted through one port at the same time that the other
port is being used to send SMDR data for printing. VDT programming of the system is
menu driven.
Common Audible Ringer Interface
Connections are available at the common equipment that provides “dry-contact” relay
closures whenever an incoming line rings. These contact closures track the ringing
pattern and can be used to control an external signaling device.
See also,Ringing.
Conferencing
Add-On Conferencing
With this feature, a user at a station that is operating in a private mode can add up to
three other stations to an outside call.
Multiline Conferencing
This feature will allow one station to access up to four outside lines at the same time
resulting in a conference arrangement. The user employs the transfer/conference button
to effect the conference.
Unsupervised Conferencing
After a user has established a conference between an internal party and a maximum of
two external parties, 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.
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							Console Support
The digital telephone system supports the installation and use of a DSS/BLF console at
any available station port. The number of installed consoles is limited only by port
availability; however, since a console complements a companion telephone located in an
adjacent station port, the installer can use up to one-half of the available station ports for
consoles. In addition with the dual console feature (discussed later), a full two-thirds of
the total station port capacity is available for console use.
The installer can assign two consoles (usually two 32-button consoles) to one telephone
using one station port each. This feature is especially useful when used with a G1632
system that has one or two GM408 expansion modules included with it. The installer can
place the first console at the station port that is logic-paired with the station that he or she
wishes to complement. The installer can put the second console at any station port except
10 or 11 and use class of service programming to assign it to the station port that is
logic-paired with the first console.
The installer can put a console at any station port and assign it to a station without first
installing a console at the station’s logic-paired port. This configuration is convenient for
adding a console to an existing telephone installation that already has its logic-paired port
occupied; however, one must not use this configuration for assigning a console to station
ports 10 and 12 because the console buttons will not be usable for programming.
As discussed above, this feature is also useful for adding a second console to a station
that already has a paired console installed with it.
The digital telephone system automatically recognizes a console when it is connected to a
station port and automatically assigns station intercom numbers to the console buttons for
direct station selection (DSS) purposes with associated busy lamp field (BLF) status
lights. However, the console buttons are fully programmable and the station user can
customize them as he or she sees fit by programming them as DSS buttons or as
automatic dialing (autodial) buttons. When the user programs the buttons for DSS use,
autodial capability is also available at a secondary level at each DSS button. The first 48
buttons on a 64-button console are programmable for DSS and/or autodial use.
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							While the first console (the one installed at the logic-paired port) extends the autodial
buttons of the paired telephone by 48 and provides DSS/BLF coverage for station ports
10 through 57, the second console (the one installed at the programmed station port)
provides DSS/BLF coverage as follows:
·On a 32-station system with two 8-station expansion modules, the first 16 buttons
are automatically assigned (defaulted) to station ports 42 through 57 for DSS
purposes.
·On a 32-station system with one 8-station expansion module, the first 8 buttons are
automatically assigned (defaulted) to station ports 42 through 49 for DSS purposes.
·On any other smaller station capacity system, all buttons are unassigned.
When an installer installs a console and programs it to complement a telephone without
first having a console installed at a port that is logic-paired to that telephone, its button
assignment is automatically defaulted, as described above, but the user can reprogram it
as required. It is important to remember that when a programmer programs for a second
console, the system sets the console button mapping to that which is described above.
When a programmer clear the assignment, the system resets the button mapping to match
a logic-paired console. This means that when the second console feature is cleared, the
console installed at that port complements the telephone that is installed at its
logic-paired port instead of the telephone that is located at the program designated port,
and its buttons are automatically reassigned to stations 10 through 57.
D
Data Interface Unit
The Data Interface Unit (DIU) is a device that provides the capability to plug an Industry
Standard Telephone (IST) or another device (such as a FAX machine or modem) into the
digital station port of a Digital Service Unit (DSU).
The DIU functions as a switch that connects the DSU station voice channel to either the
digital proprietary phone port (connector labeled “PHONE”) or the IST port (connector
labeled “FAX/MODEM”). The IST port can be used to provide a data connection for a
FAX or modem. It can also be used for virtually any IST device such as a cordless
telephone or answering machine.
In addition to the power connector, the DIU has a connector for a digital multiline
telephone (Impactor DigiTech), and another connector that you can use for any one of
the following on-premise devices:
·Industry Standard Telephone (IST)
·facsimile machine (FAX), or
·modem.
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