Comdial Dsu II Digital Telephone System Instructions Manual

							SAVE Button Stations (list 10–57 for stations)
Default = None Assigned
Caller ID Distribution To COM 2 Enable Disable
Default = Disabled
COM 2 Configuration
Baud Rate 9600 Other (see system configuration record)
Data Bits 8 Data/1 Stop 7 Data/2 Stop
Default = 9600 Baud, 8 Data Bits, 1 Stop Bit
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							4.15 Tracker Paging System Records
Tracker Paging System
Enabled Disabled
Default = Disabled
Tracker Pager Station Assignments
Station Port Enabled Station Port Enabled Station Port Enabled
10 26 42
11 27 43
12 28 44
13 29 45
14 30 46
15 31 47
16 32 48
17 33 49
18 34 50
19 35 51
20 36 52
21 37 53
22 38 54
23 39 55
24 40 56
25 41 57
Default = Disabled
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							4.16 Digital Voice Announcing Records
Enable/Disable DVA Operation
Feature Enabled Disabled
DVA Support for DCD
DVA Support for DISD
Default = Disabled
DCD Department Transfers Before Disconnect
DCD Department
Transfers Before
Disconnect123456789
Never
Disconnect
Default = Never Disconnect
Inhibit DISD Digit Dialing—During Night Transfer (of Ringing) Operation
DISD Digit Dialing During Night
Transfer (of Ringing) OperationEnabled
(Dialing On)Disabled
(Dialing Off)
Default = Enabled
DISD Dial Time Limit
DISD Dial
Time Limit6 sec. 9 sec. 12 sec. 15 sec. 20 sec. 30 sec. 40 sec. 60 sec. 90 sec. 0 sec.
Default = 12 sec.
DSU II Digital Telephone System IMI66–132
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							DVA Messages(Copy this blank sheet for a record of each DVA.)
Message Type DCD Message DISD Message
Day Answer Message
(Message 1)
Night Answer Message
(Message 2)
Recall Message
(Message 3)
Drop Message
(Message 4)
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							DVA Station Ports
Station Port DVA Assigned Station Port DVA Assigned
10 34
11 35
12 36
13 37
14 38
15 39
16 40
17 41
18 42
19 43
20 44
21 45
22 46
23 47
24 48
25 49
26 50
27 51
28 52
29 53
30 54
31 55
32 56
33 57
Default = None Assigned
DSU II Digital Telephone System IMI66–132
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							4.17 Data Interface Unit Records
Station DIU Location Security Group Station DIU Location Security Group
10 34
11 35
12 36
13 37
14 38
15 39
16 40
17 41
18 42
19 43
20 44
21 45
22 46
23 47
24 48
25 49
26 50
27 51
28 52
29 53
30 54
31 55
32 56
33 57
Defaults = No DIUs assigned. Security groups = 0 (no assignments).
Example: The following entries show that station 12 has been programmed so that the data button
(labeled “DATA”) on the digital telephone at station 12 will activate the DIU connected at station 29.
Also, this example shows that station 29 is assigned to security group 2.
12 29 —
29 29 2
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							Appendix A:
Understanding The
System Features
A
Abandoned Hold Release
If an on-hold party hangs up at the CO/PBX end of a connection, causing an interruption
in the line current, the system will drop the line from the hold condition and return it to
service. The time interval between hang-up and line-drop is programmable in line class
of service programming with choices of either 50 msec or 350 msec. This feature is
usually dependent upon special arrangements that must be made at the CO end of the
connection. The line select indicator will turn off to indicate an idle line after a call on
that line has been abandoned.
See also,Hold.
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.
A
DSU II Digital Telephone System IMI66–132
Digital Telephone System Features A – 1 
						

							Account Codes (With Forced Positive Verification)
System users can employ account codes to identify calls by category or by any other
desired grouping so that the system can print reports. The account code entry can be
voluntary or the programmer can arrange the system so that the users are forced to enter
an account code before they can make an outgoing call. The system compares the
account code entered by a station user with a list of programmed account entries.
The programmer must program the system so that it verifies an entered account code as
valid. If he or she enables verification and the system cannot match an account code that
a user has dialed with the programmed account code entries, the system will sound an
error tone if account code
entry is voluntary, or it will prevent the user from further dialing until he or she enters a
matching account code if account code entry is forced.
A user must enter an account code either before dialing an outgoing call or after the
distant party on an incoming call has hung up. Additionally, users may enter an account
code before they select a line for an outgoing call if they wish. When they enter an
account code without a line selection, the code will apply to any line they subsequently
select at that station. On incoming and outgoing calls, the user who enters the account
code is associated with the call record except when the call is transferred. On transferred
calls, the transferee is associated with the call record.
As a feature to LCD speakerphone users, the programmer can arrange for a message to
appear in the telephone’s display to prompt the user to enter an account code during
incoming or before outgoing calls. He or she can also assign the length of time that the
display appears. The user must enter account code digits after the message appears. If the
programmer has set the system to verify code entry, it then makes a verification attempt.
If the system cannot verify the account code it causes the display to show an error
message. The user may then re-enter the account code at this point. If the verification
attempt is successful (or if the system does not require that the code be verified), the
display will return to its normal date and time message. If the account codes are forced
and the call is outgoing, then the line is dropped at the end of the display time if the user
has not entered a valid account code. The programmable range for the display time is 1 to
20 seconds. When the feature is not enabled, the system inhibits the display prompt.
When a station user activates the last number redial or automatic redial features for
outgoing calls, the system will automatically re-use the last account code the user entered
at that station unless he or she enters a new one before activating the redial feature.
In addition to turning on the account code feature, enabling its verification, and making it
either voluntary or forced, the programmer must set the account code length, specify the
number of digits that the system will verify, and make up the entire list of account codes
that the users will use. Account code length defines the number of digits that a user must
enter before the system will accept the code. The length can range from three to 16 digits
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A – 2  Digital Telephone System Features 
						

							but cannot be lower than the verified account code length. The verified account code
length defines the number of digits that the system will verify before it accepts an
account code as valid. As well, verified account code length defines the number of valid
account codes that a programmer can store (as shown in the following table). A
programmer should be aware that when he or she changes the verified account code
length, the system automatically empties the list of valid account codes.
Account Code Length And Valid Account Codes
Digits VerifiedNumber of Valid Account Codes
3 1000
4 400
5, 6 266
7, 8 200
9, 10 160
11, 12 133
13, 14 114
15, 16 100
Even though a programmer has arranged a system to force users to enter account codes
before making calls, they can always dial certain programmer-defined emergency
numbers without an accompanying account code entry. The system allows a maximum of
10 programmable emergency numbers. The minimum length of an emergency number is
1 digit and the maximum length is 12 digits. Users may dial emergency numbers
manually, through system speed dial, personal speed dial, last-number redial, or
automatic redial—with or without account code entry.
DSU II Digital Telephone System IMI66–132
Digital Telephone System Features A – 3 
						

							Forced Account Code Entry For CENTREX Users
The programmer may set the TAP time so that CENTREX usersdo nothave to re-enter
an account code after pressing the TAP button. The programmer may also set the system
so that non-CENTREX usersdohave to enter an account code after pressing TAP.
·If the TAP time is set for 1 second or less (the hookflash time), the system will not
clear an account code after a TAP entry. This enables CENTREX users to do host
system transfers without entering an account code a second time.
·If the programmer sets the TAP time for 1.5 seconds or more (the recall time), the
system clears the account code after TAP entry. This forces non-CENTREX users
to re-enter an account code if they press TAP to recall a new dial tone.
Account Code Button
A programmer can use station class of service programming to assign an account code
button to any programmable button location at a station as part of the button mapping
procedure. With this account code button available, the user can press it and then dial an
account code without interrupting the call. Only the user of the Account Code button will
hear the DTMF tones when he or she dials the code. The distant on-line party will not
hear the DTMF tones, and the system will not place the line on hold. The user can hear
the distant on-line party while he or she is dialing an account code. If the telephone does
not provide an account code button, the user must dial an intercom code before he or she
dials the account code digits.
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.
See also,Paging.
Analog Terminal Interface Support
The digital telephone system supports the operation of the Analog Terminal Interface
(ATI-D). The ATI-D is a multipurpose on-premise accessory with dual circuits that
provide an industry-standard telephone interface. This feature adapts most
industry-standard (IST) devices and voice processing systems to the digital telephone
system. The ATI-D accepts both tone and pulse (rotary) dialing from these devices. Each
ATI-D circuit will drive a load with a maximum ringer equivalence number (REN) of 2.0
thus allowing more than one IST connection at each ATI-D circuit input. The ATI-D
supports a wide variety of IST equipment such as model 500 and 2500 telephones,
cordless telephones, answering machines, and FAX machines. The ATI-D is housed in a
metal enclosure and is powered by the telephone system through the station port
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A – 4  Digital Telephone System Features