Comdial Dsu II Digital Telephone System Instructions Manual

							M
Manual Hold
A button activated feature at each station will place an outside line on hold. When a user
presses the HOLD button while on a call, the system places the call on hold, provides a
distinctive flash rate of the line button indicator, and allows the user to access other
station features. A user at the holding station or at any other station that has access to the
line can retrieve the held call.
See also,Hold.
Meet-Me Answer Page
Any station user can dial a special code number in response to an all-call or zone page
and be connected to the paging party in a private conversation. All-call or zone paging is
provided to the stations through the station class of service programming.
See also,Paging.
Memory Retention Without Batteries
The system memory is electronically protected during AC power failures by an electronic
device sometimes known as a “super cap.” The stored program data will remain in
memory for a minimum of 60 hours provided that the system has been powered
continuously for at least 30 minutes prior to the power failure or disconnection. Also, the
system clock will continue to run and keep time for at least 30 minutes after an AC
power failure or disconnection.
Messaging
Assist Button
This feature allows a station user to program a button to be used for sending a message to
an LCD speakerphone. Once programmed, the station user can press the ASSIST button
at anytime to ring the called station and present a preprogrammed message in the station
display. The user can send a message while on a call without alerting the distant party.
This feature is useful for requesting assistance while engaging on a call. For example, a
customer service representative could request assistance from a supervisor while talking
to a problem caller. The supervisor, upon receiving the tone and noting the display
message, could perform an executive override or service observing action to join the call
or monitor it.
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							LCD Messaging
Standard and system-supplied custom display messages can be set by dialing a specific
code at any station. Such messages are to be received and displayed by any LCD
speakerphone that calls the station which set the message. When a message is set, the
intercom light at the setting station will flash to indicate that the feature is active.
Message Waiting
Special feature access codes enable a station user to control the message waiting (MW)
light at other stations in the system. When the message waiting light is turned on at a
station, a call can be automatically placed to the station that turned it on.
Alternately, one station can be designated by COS programming as the central message
desk and can be arranged for exclusive message waiting control. The central message
desk can be used to control message waiting lights and deliver messages to and from all
other stations in the system. The ability of a station to originate a message waiting signal
is enabled by programming action. Station class of service programming provides a
station with the ability to originate a message waiting signal and is used to create a
central message desk. The system defaults the messsage wait originate feature as enabled.
Response Messaging
This feature allows a user to reply in a non-verbal manner to a voice announce or
tone-signaled intercom call or to a subdued off-hook voice announce call if the intercom
caller is using an LCD speakerphone. A station user can press a programmable button in
response to an intercom call and send a message to be shown on the display of the calling
station. Response messages are pre-programmed by the attendant and later stored by
station users at programmable buttons on their individual stations as need dictates.
Station-To-Station Messaging
If a station has a DSS/BLF appearance at another station, a callback message indication
can be left at that station with the DSS/BLF appearance. The user can dial a special code
to turn on the BLF light at the called station that is assigned to the calling station. This
light indicates that a callback is requested. The light is automatically turned off if a
successful callback is made.
If a station number is not programmed for a DSS/BLF appearance at another station,
attempting to place a call back message will cause the central message desk station to
ring. If there is no central message desk assigned, no action will occur.
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							Modular Wiring And Jacks 2- Or 4-Conductor Wire System
The system can be completely interconnected by employing industry standard 50-pin
connectors and modular plug/jack combinations. Station wiring is number 22 or 24
gauge, 2-conductor, twisted-pair cable throughout the system. If the installer uses
4-conductor twisted-pair cable, it provides a spare pair for a separate wiring purpose
when needed.
Music Features
Background Music
If the installer connects a customer-provided external music source to the system, the
music from that source will sound through the station loudspeakers after the users turn it
on at their stations. They can adjust the loudness of this background music with the
loudspeaker volume control. The system automatically turns the background music off
during calls. This feature requires no class of service programming.
Music Interface
The common equipment cabinet includes an input jack where the installer can connect a
customer-provided music source.
Music-On-Hold
When an installer connects a customer-provided music source to the system through the
music interface jack, the system supplies that music to the outside lines that users place
on hold.
Music-On-Hold System-Wide Enable/Disable
After the installer has arranged for the system to supply customer-provided music to calls
that users place on hold, the attendant can disable the feature on a system-wide basis.
Mute
Every monitor telephone and speakerphone has a MUTE button which, when pressed,
will mute the handset transmitter (or internal microphone on speakerphones) to prevent
the user’s voice from being heard by the distant party. The MUTE light turns on steady
to indicate a muted condition. The MUTE button provides push-on/push-off operation on
speakerphones. No class of service is required.
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							Handsfree Answer Inhibit
The user can use the MUTE button 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 a user presses the MUTE button,
all handsfree answerback is disabled thus inhibiting any off-site monitoring. The MUTE
light turns on steady to indicate that this feature is active.
N
Night Transfer (Of Ringing)
Night transfer (of ringing) is an attendant-controlled feature that transfers the day ringing
program of all incoming calls to a particular station or stations for off-hour or special
purpose answering. The night transfer mode can only be activated from station 10 or 12.
The individual lines at each station that are to be transferred with this feature are selected
by station class of service programming.
See also,Ringing.
O
On-Hook Dialing
Every monitor and speakerphone provides manual and/or automatic dialing while the
station handset is on-hook. The telephone loudspeaker monitors call progress for
completion. (The handset must be taken off-hook to provide the voice link on
non-speakerphone stations.)
Originating Denied
The ability to originate calls on certain lines can be denied at individual stations through
system programming. The originating denied feature is programmed on a per station/per
line basis. Originating denied does not prevent a user from answering a ringing line,
retrieving a held call or receiving a transferred call. Call origination on a line is denied at
a particular station by the station class of service programming.
See also,Line Features.
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							P
Paging
All-Call Paging
All-call paging allows all stations to receive announcements through the station speaker
at once. The system can also send all-call paging to the paging port where it applies it to
the input of an external paging amplifier. Origination of announcements must be via the
station handset. A programmer can arrange each station to receive and/or originate
all-call page. He or she enables the ability to receive and originate all-call paging at a
station through station class of service programming.
External Paging Interface
A dedicated paging port or a spare line port can be interfaced with an external paging
amplifier. The paging amplifier can then be dial-accessed by stations in the system.
DTMF tones can be dialed through the line port to provide zone selection if provided by
the external paging amplifier. The dedicated paging port does not support any “talk-back’
capability even if such a feature is provided by the external equipment. The line class of
service programming arranges a line port for external paging interface. The system
precedes an announcement through the paging port with an alerting tone. Programmers
can choose between an intercom tone or a DTMF signaling tone for this paging alert
tone. They should choose the intercom tone for a soft alert and choose the DTMF tone
for a loud alert.
Meet-Me Answer Page
Any station user can dial a special code number in response to an all-call or zone page
and be connected to the paging party in a private conversation. All-call or zone paging is
provided to the stations through the station class of service programming.
Zone Paging
Zone paging allows groups of stations to receive announcements through the station
speakers. The programming can enable zone paging in up to four different zones. Zone
paging can also be received at the paging port where it can be connected to the input of
an external paging amplifier. The ability of each station to originate and/or receive a page
and the arrangement of the paging into different zones are controlled by station class of
service programming. Zone paging through the paging port is enabled by system class of
service programming.
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							PBX/CENTREX/CO Compatible
System features and programmable buttons support the requirements of most PBXs,
Central Offices, and CENTREX systems. Numbers, #‘s,S‘s, programmable pauses, and
flash signals can be made a part of every stored number for access to host system feature
codes.
Personal Computer Interface Unit (PCIU)
The Personal Computer Interface Unit (PCIU) is a device that you can connect between a
digital station port and its proprietary telephone. The PCIU allows telephone users to
initiate telephone and voice mail related functions from their personal computer (PC).
The PCIU includes Service Provider Interface (SPI) software on computer diskettes.
With this software installed on the user’s PC, the PC users can employ their Telephony
Applications Programming Interface (TAPI), third-party Microsoft* Windows
applications programs to control many useful telephone functions.
When the Visual Voice Processing (V.V.P.) Visual Call Manager (VCM) software option
is available, the voice mail system can use the serial data path to the PCIU to send
messages to the telephone’s display and to the SPI on the PC.
*Microsoft is a registered trademark of Microsoft Corporation, Redmond, Washington
Personalized Ringing Tone
The system provides a group of distinctive tones for station ringing. A station user can
choose a tone from this group to provide a distinctive ring at his or her telephone. Often,
when several telephones are located close to each other, each user chooses a different
personal ring tone. The system provides six distinctive tones for users to choose from.
See also,Ringing.
Pooled Line Access (Line Group Access)
Outside lines can be grouped together in up to four different groups. Users can program
an autodial button to select a line group or manually enter a dialing code for access to a
line. Grouping can reserve certain lines for certain clusters of stations as in a
tenant-service arrangement. The assignment of line groups frees station buttons normally
used for line selection thus making these buttons available for use with a feature such as
personal DSS/BLF with station-to-station messaging. Lines are placed in line groups
with the line class of service programming.
SeeLine Features.
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							Power Failure Transfer
An installer can connect an industry-standard telephone such as the model 2500 to a
special connection to serve as a power-fail telephone. If an AC power failure occurs, the
system automatically connects the power-fail telephone directly to an outside line. Users
can make normal origination and reception of calls on a power-fail telephone during an
AC power failure. The system will automatically disconnect the power-fail telephone
from the outside line as soon as AC power returns.
Prime Line Automatic
If the programmer uses station class of service programming to enable prime line
automatic at a station, the system will automatically select the designated outside line,
intercom line or line group when the user lifts the handset. A user can pre-empt prime
line pickup by preselecting another line before lifting the handset. If the prime line is
ringing, it is automatically answered when the user lifts the handset.
See also,Line Features.
Privacy
Automatic Privacy
A programmer can make a line private or non-private through programming. In the
private mode, a station has exclusive use of the line during a call. No other station can
access that line unless the user of the private line adds another station through the use of
the add-on conference feature. In the non-private mode, another station with that line
appearance can gain access at the same time (sometimes known as common line pickup).
A line is specified as private or non-private through the line class of service
programming. Through station class of service programming, a programmer can make a
line non-private at a particular station.
See also,Conferencing.
Privacy—Designated Programmable Button
The programmer can arrange for stations to provide a privacy button. If a line is private,
a user can press the privacy button to change it into a non-private one. If the line is
non-private, pressing the button will have no effect. Station class of service programming
is used to program the programmable button function at the stations.
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							Privacy Release/Brokerage Service
See the previous paragraph titledPrivacy—Designated Programmable Button
Private Lines (Access Denied)
The system programmer can deny access to particular lines at certain stations in the
system. A station user cannot select a denied line for use. This feature is programmable
on a per line/per station basis in station class of service programming.
See also,Line Features.
Programmable DSS/BLF
A station user can store one-button, direct station selection (DSS) at any memory button
location to create a DSS memory button. When this button is pressed, any active outside
call is automatically placed on hold and an intercom call is automatically made to that
previously stored station number. The visual indicators of the stations programmed at the
button locations form a busy lamp field (BLF). The BLF conveys station status to the
user. An autodial number can also be programmed as a secondary function at every
DSS/BLF memory location. No class of service is required.
See also,Automatic Dialing.
Programmable Buttons
A programmer, or in many cases the users themselves, can make most system features
available at programmable buttons merely by storing the specific access codes necessary
for dialing the features. Storable features include those that can utilize lamp (on/off)
supervision (e.g., call park orbits). The system will store all feature access codes except
for those requiring Transfer/Conference button action. It will store continuous strings of
digits (including presses of the intercom button) up to the maximum amount of storable
digits (16) allowed in an autodial entry.
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							Programming Password Protection
No one can enter a programming mode to reprogram the system without first entering a
password. The system provides two different entry levels for programming and allows
for a different password for each entry. The two programming entry levels are the
installer level and the administrator level. Programmers can enter the installer level, using
the installer password, to perform all programming functions including major changes
such as master clearing and line type programming. They can enter the administrator
level, using the administrator password, to perform most programming functions except
those major changes just mentioned. Programmers can use the VDT programming
method to change the passwords from their default values as needed to provide security
against unauthorized program entries. They can do this when the system is initially
installed and programmed, or at any later time as needed. Additionally, programmers can
construct a password that will prevent all COS programming entry from station 10.
Customized passwords can be alpha-numeric or numeric only (no spaces allowed) and
must contain six characters. To retain the ability to enter programming from station 10,
programmers must maintain the ISnnnSformat in the VDT password and enter only
numbers in the nnn entry; however, they must not enter a zero for the leading n. Once
customized, a password remains customized. Neither default nor master clear will erase
it. Programmers must use the new password to gain entry into the system for future
programming tasks. It is very important that someone keep a hard copy of the customized
password since it provides the only entry to system COS programming through either the
VDT or station 10. If no one can remember the customized password, the manufacturer
can provide emergency entry but there is a charge for this service. Otherwise, the installer
must disconnect all AC power and any battery back up equipment, wait at for an
extended period of time (up to several weeks) for the internal memory protection to
completely discharge, and reprogram the system using the default password to gain entry.
Pulse/Tone Switchable
The programmer can program the system on a per line basis using the line class of
service programming to allow the stations to switch from pulse to DTMF type dialing as
needed. Alternately, she or he can program the system to only allow tone dialing.
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							R
Redialing
Automatic Redial (Of Busy Number Or Unanswered Call)
A user can automatically redial a busy number or unanswered call by activating this
feature. Once the user activates automatic redial, the station will select the line,
automatically dial the number, and wait for a response. It will do this once a minute for
approximately 10 minutes unless the user deactivates the feature by pressing that button
or another button or by lifting the handset. The feature cycle is timed and does not have
busy detection circuitry. Because of this, if the user is operating handsfree when the
called party answers, she or he must lift the handset to prevent the caller from being cut
off by the timing cycle. The automatic redial button is a designated programmable button
position and the user must program its location to make it active.
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. The system inserts the
automatic pause in the stored number sequence at the point where the manual pause in
dialing occurred. The length of the automatic pause is programmable.
Last Number Redial
Each station is provided with a last number redial feature. This feature will save 32 digits
of the last outside number dialed. A newly dialed number will always automatically
replace a previously dialed number. Upon command, the system will choose a line and
redial the saved number. The system will first choose the prime line if assigned and idle.
If it is busy or unavailable, the system will choose any line assigned to idle line
preference. If they are unavailable, the system will chose the last line used at the station.
If it is busy, no further choice is made. No class of service is required.
Saved Number Redial
This feature enables a button action to save the first 16 digits of the last number manually
dialed from the keypad. The saved number can be redialed at a later time. The saved
number is permanently available for later use until it is replaced with a new number.
When the caller identification feature is active, this saved number redial feature will save
the Caller ID number for redial.
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