Nitsuko 124i/384i Software Manual

							Direct Inward Line (DIL)
Description
 124i Available — 52 trunks, 96
extensions/virtual extensions and
eight Department Groups. 384i Available — 128 trunks, 384
extensions/virtual extensions and 32
Department Groups.
- Department Group as DIL
destination always available.- Department Group as DIL
destination requires system software
3.04 or higher.
- DIL overflow to Voice Mail requires
Base 2.13, EXCPRU 2.18 or higher.- DIL overflow to Voice Mail requires
system software 3.05.15 or higher.
- DIL overflow to the VAU Automated
Attendant is not available.- DIL overflow to the VAU Automated
Attendant requires system software
3.07.10 or higher.
A Direct Inward Line (DIL) is a trunk that rings an extension, virtual extension or Department Group directly.
Since DILs only ring one extension or group (i.e., the DIL destination), employees always know which calls are
for them. For example, a company operator can have a Direct Inward Line for International Sales Information.
When outside callers dial the DIL’s phone number, the call rings the operator on the International Sales line key.
The DIL does not ring other extensions.
DIL Delayed Ringing
Extensions in a Ring Group can have delayed ringing for another extension’s DIL.  If the DIL is not answered at
its original destination, it rings the DIL No Answer Ring Group.  This could help a Technical Service depart-
ment, for example, that covers calls for an Inside Sales department.  If the Inside Sales calls are not answered,
they ring into the Technical Service department.
Conditions
(A.) If unanswered, a DIL without delayed ringing rings an extension until the outside party hangs up.  The
DIL does not automatically reroute.
(B.) If a DIL rings a Department Group and all agents are busy, the system routes the call as follows:
1.  The trunk rings the overflow destination assigned in 0919.
2.  If there is no 0919 assignment, the trunks rings the PC Attendant Console (if installed).
3.  If there is 0919 assignment or PC Attendant, the call rings according to the Ring Group assignments
     in 0909 and 0910.
4.  If none of the destinations in steps 1-3 above are available, the call continues to ring until a 
     destination becomes free.
Default Setting
Disabled.
Features D-M
Direct Inward Line (DIL)
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							Programming
Start
Stop
Should extension
have a DIL?StopNoIn 0901:14-17, enter
4 for each Night
Service Mode.
In 0917, enter
DIL destination.
Should DIL also ring
extensions line key?In 1006, enter the
DIL trunk number for
line key.
Should extensions
have outgoing
access to DIL?Program 0911
for trunks; 0912
for extensions.
If a DIL rings too long,
does it route to the
overflow destination after
the proper interval?In 0405:62, change the
DIL No Answer Time.
Should the DIL overflow
destination be a Ring
Group, Voice Mail or the
VAU Automated Attendant?In 0919, enter
destination Ring
Group (1-126 in
384i, 1-15 in 124i).
In 0919, enter
127 (384i only).
In 2205, enter number
of VAU Message that
should play to caller.
VAU
In 0919, enter 128
(384i) or 16 (124i).Voice
Mail
Yes
Yes
No
Yes
No
No
Yes
DILs initially ring CALL keys without any
additional programming.
Incoming DILs show as busy
on other extensions line keys.
All extensions should have at
least Hold access for DIL.
In 0909, assign the extensions that
should receive the overflow to the
Ring Group programmed in 0919.
Enter 1 to enable ringing.
Ring
Group
Features D-M
Direct Inward Line (DIL)
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							Programming (Cont’d)
➣
0405 - System Timers (Part A), Item 62: DIL No Answer Time
Set the DIL No Answer Time (0-64800 seconds).  If DIL Delayed Ringing is set in program 0919, this
option sets the DIL Delayed Ring interval.
➣0901 - Basic Trunk Port Setup (Part A), Items 14 to 17: Trunk Service Type
Assign each DIL Service Type 4. Make an entry for each Night Service mode.
➣0909 - Extension Ring Group Assignment
Assign the extensions that should receive the overflow to the ring group programmed in 0919 (0=trunks
don’t ring [just flash line keys], 1=trunks ring).
➣0911- Trunk Access Map Setup
Set up the Trunk Access Maps.  All extensions should have at least Hold access to the DIL (entry 3).  Without
Hold access, transferred DILs and DILs on hold can be answered only while they are ringing or recalling.
➣0912 - Extension Access Map Assignment
Assign Trunk Access Maps (1-128) to extensions.
➣0917 - DIL Assignment
Set the destination extension port for each DIL — for each Night Service mode. The destination can be:
- An extension port (1-256 in 384i, 1-72 in 124i).
- A virtual extension port (257-384 in 384i, 73-96 in 124i).
- A Department Group (384-416 for groups 1-32 in 384i, 97-104 for groups 1-8 in 124i).
➣0919 - DIL No Answer Destination
For each DIL with delayed ringing, enter the DIL No Answer Ring Group.  An unanswered DIL rings this
group after the DIL No Answer Time. In 384i, enter 127 to overflow to the VAU or 128 to overflow to Voice
Mail. In 124i, enter 16 to overflow to Voice Mail. Make an entry for each Night Service mode.
➣1006 - Programming Function Keys
To have the DIL ring a key, program a line key for the DIL trunk.
➣(384i Only) 2205 - OPA Message Assignment
If the Transfer Destination set in Program 0919 is 127, use this program to assign the VAU message (1-
16) that should play when the VAU Automated Attendant answers.
Related Features
Call Forwarding
Call Forwarding does not reroute DILs.  If an extension forwards their trunk calls, the trunk rings accord-
ing to Ring Group programming.
Central Office Calls, Placing
You can place DILs in trunk groups to make outgoing DIL calls easier.
Department Calling
A DIL cannot have an Extension (Department) Group as its destination.
Do Not Disturb
If an DILs destination extension is in DND, an incoming call rings according to Ring Group programming.
Group Call Pickup
A user can activate Group Call Pickup to intercept a DIL ringing another extension.
Name Storing
Program a name for a DIL.  This makes it easier to identify the incoming call.
Private Line
To simulate Private Line operation, create a unique Access Map for the DIL that allows full access only
for the destination. Give all other extensions only Hold access
Off Hook Signaling
If a keyset’s first channel is busy, a DIL always signals the idle second channel if available. If the second
channel already has a call waiting, DIL waits in line for a channel to become free. The outside caller
hears ringback tone while this occurs.
Programmable Function Keys
If an extension has a line key for a DIL, the call will ring the key.  If not, the call rings an available line
appearance.  For other extensions, the DIL indicates as busy.
Ring Groups
A DIL will ring its assigned extension without Ring Group programming.  A DIL only rings its assigned
extension.  If will not ring other extensions in a Ring Group.
Features D-M
Direct Inward Line (DIL)
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							Operation
To answer a call on your Direct Inward Line:
1. Lift handset.
2. At keyset, press flashing line key for DIL.
If you don’t have a line key for the DIL, the DIL rings an idle CALL key.
If you have Ringing Line Preference, lifting the handset answers the call.
If you don’t answer the call, it may ring other extensions (i.e., the DIL No Answer Ring Group).
To place a call on your Direct Inward Line:
1. Lift handset.
2. At keyset, press line key for DIL
OR
Dial #9 and the DIL trunk number (e.g., 005).
OR
Dial 804 and the DIL trunk group number (e.g., 05).
OR
Dial 9 for Trunk Group Access
3. Dial number.
Features D-M
Direct Inward Line (DIL)
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							Direct Inward System Access (DISA)
Description
 124i Available — 15 users, 8 DISA
Classes of Service and 52 trunks.  384i Available — 15 users per Tenant
Group, 15 DISA Classes of Service
and 128 trunks. 
-Requires DTDU PCB for DTMF
DISA trunks.- Requires DTMF receivers on CDTU
PCB for DTMF DISA trunks.
- Enhanced Answer Supervision
requires Base 2.13, EXCPRU 2.18 or
higher. See page  844.- Enhanced Answer Supervision
requires system software 3.05.15.
See page  844.
- Oveflow routing to Voice Mail
requires Base 2.13, EXCPRU 2.18
or higher.- Overflow routing to Voice Mail is
avaiable.
- Tone Detection Setup and setting the
CODEC Gain Type transmit and
receive levels requires Base 2.13,
EXCPRU 2.18 or higher.- Tone Detection Setup and setting the
CODEC Gain Type transmit and
receive levels requires system
software 3.04 or higher.
- Overflow routing to the VAU
Automated Attendant is not available.- Overflow routing to the VAU
Automated Attendant requires
system software 3.07.10 or higher.
DISA permits outside callers to directly dial system extensions, trunks and selected features.  This could help an
employee away from the office that wants to directly dial co-workers or use the company’s trunks for long dis-
tance calls.  To use DISA, the employee:
•Dials the telephone number that rings the DISA trunk
•Waits for the DISA trunk to automatically answer with a unique dial tone
•Dials the 6-digit DISA password (access code)
•Waits for a second unique dial tone
•Accesses a system trunk, uses a selected feature or dials a system extension
DISA calls ring system extensions like other outside calls.  If an extension has a line key for the DISA trunk, the
call rings that key.  If the extension does not have a line key, the call rings an idle CALL key.
You can set DISA operation differently for each Night Service mode.  For example, a trunk can be a normal
trunk during the day and a DISA trunk at night.  You can also set the routing for DISA trunks when the caller di-
als a busy or unanswered extension, dials incorrectly or forgets to dial.
DISA Class of Service
DISA Class of Service provides features and dialing restrictions for DISA callers.  This allows you to control the
capabilities of the DISA callers dialing into your system.  When a DISA caller first accesses the system, they
must enter a DISA password before proceeding.  The system associates the password entered with a specific
user number, which in turn has a Class of Service.  If the Class of Service allows the action (such as making out-
going trunk calls), the call goes through.  If the DISA Class of Service doesn’t allow the action, the system pre-
vents the call.  The DISA Class of Service options are:
•Trunk Group Routing/ARS Access
When a DISA caller dials into the system, they may be able to dial 9 and place outside calls.  Any toll
charges are incurred by the system.  The call follows the system’s Trunk Group Access or Automatic
Route Selection - whichever is enabled.  
Features D-M
Direct Inward System Access (DISA)
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							Description (Cont’d)
•Trunk Group Access
DISA callers may be able to access a specific trunk group for outgoing calls through the system.  To ac-
cess a Trunk Group, the user dials Service Code 804 followed by the Trunk Group number (e.g., 1).  This
allows the DISA caller to place an outgoing call over the selected group.  Trunk Group Access bypasses
the system’s Trunk Group Routing/ARS.  As with dial 9 access, any toll charges are incurred by the sys-
tem.  Also see Direct Trunk Access below.
•Common Abbreviated Dialing
The system’s Common Abbreviated Dialing bins may be available to DISA callers.  This could save the
DISA caller time when dialing.
•Operator Calling
A DISA caller may be able to dial 0 for the system’s operator.
•Paging
Internal and External Paging may be available to DISA callers. This allows co-workers in adjacent facili-
ties, for example, to broadcast announcements to each other.
•Direct Trunk Access
DISA callers may be able to select a  specific trunk for outgoing calls through the system.  To directly ac-
cess a trunk, the user dials Service Code #9 followed by the trunk’s number (e.g., 001).  This allows the
DISA caller to place an outgoing call over the selected trunk.  Direct Trunk Access bypasses the system’s
Trunk Group Routing/ARS.  As with dial 9 access, any toll charges are incurred by the system.  Also see
Trunk Group Access above.
DISA Toll Restriction
The digits a DISA caller dials for an outgoing call may be subject to the system’s Toll Restriction.  For example,
Toll Restriction can prevent users from dialing a 1-900 service. When an incoming DISA caller tries to use sys-
tem trunks to dial 1-900, Toll Restriction will deny the call.
DISA Operating Modes
The DISA Operating Modes determine what happens when a DISA caller forgets to dial, calls a busy or unan-
swered extension or dials incorrectly.  The system can either drop the call or send it to a preset Ring Group
(called a the DISA Transfer Destination).
Department Calling with Overflow Message
If a DISA caller dials a busy Department Calling Group, the system can periodically play the voice prompt,
Please hold on. All lines are busy. Your call will be answered when a line becomes free. while the caller waits.
The interval between the voice prompts is the DISA Overflow Message Time. When an extension in the Depart-
ment Group becomes available, the call automatically goes through. If the Department Calling Group remains
busy past the DISA No Answer time (see the flow chart on page 251), the DISA call routes to the overflow desti-
nation or disconnects. (What happens to the unanswered call is set by the DISA Operating Mode). The Overflow
Message requires a Voice Announce Unit.
Conditions
The DISA caller must use a 2500 type (DTMF) telephone. DISA is compatible with calling devices that meet the DTMF
signaling requirements of EIA Specification RS-464. DISA trunks must be ground start or supervised loop start.
Default Setting
Disabled.
Features D-M
Direct Inward System Access (DISA)
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							Programming
Start
(384i Only) In 0303, reserve at
least one CDTU block for
DTMF reception (entry 2).
In 0901:14-17, set
the circuit type for
DISA trunks (type 2).If DISA callers should be able to place
outgoing calls through the system, enable
loop supervision in 0901:31 for outgoing
trunks and the DISA trunks.In 1801, set up the 6-
digit DISA password and
Class of Service for
each user. Each Tenant Group in 384i and each 124i
system can have up to 15 users. There is
one DISA Class of Service and one
password per user.
Should dialing
mistakes from DISA
callers cause Transfer
or disconnect?In 1802:1-3, enter 0.
Item 1 = Timeout
Item 2 = RNA/busy
Item 3 = Mistake in dialingIn 1802:1-3, enter 1 for each trunk
that should transfer. Each trunk
may be programmed differently.
Item 1 = Timeout
Item 2 = RNA/busy
Item 3 = Mistake in dialing
DisconnectTransfer
Should Transfer destination
be a Ring Group, Voice
Mail or VAU Automated
Attendant?In 1803, enter
destination Ring
Group (1-126 in 384i,
1-15 in 124i).Ring
group
In 1803, enter 128
(384i) or 16 (124i).
Voice
MailIn 1803, enter 127.
In 2205, enter
number of VAU
Message that should
play to caller.
VAU
Does system play busy
tone for an adequate
interval before
disconnecting caller?
In 0414:3, change the DISA
Busy Tone Interval.
No
Should DISA callers
Class of Service allow
dialing 9 for Trunk Group
Routing or ARS?In 0412:2, enter 0 to
prevent dial 9 access
to trunks.NoIn 0412:2, enter
1 to allow dial 9
access to trunks.
In 1811, set the Trunk
Group Route the DISA
caller accesses when
they dial 9.Continued
on following
page.
Yes
YesIn 0909, assign
extensions to the
ring group
programmed in 1803
that should receive
DISA transfers.
Features D-M
Direct Inward System Access (DISA)
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							Programming (Cont’d)
No No
Yes Yes Yes No No Yes No Yes
Continued
on following
page.
In 0412 Item 7, enter 0 to
prevent DISA caller from
using External Page.In 0412 Item 7, enter 1
to allow DISA caller to
use External Page.Should DISA callers Class
of Service allow caller to use
External Page?
In 0412 Item 6, enter 0 to
prevent DISA caller from
using Internal Page.In 0412 Item 6, enter 1
to allow DISA caller to
use Internal Page.Should DISA callers Class
of Service allow caller to use
Internal Page?
In 0412 Item 5, enter 0
to prevent DISA caller
from dialing telephone
system operator.In 0412 Item 5, enter 1
to allow DISA caller to
dial telephone system
operator.Should DISA callers Class
of Service allow caller to dial
telephone system operator?
In 0412 Item 4, enter 0
to prevent DISA caller
from using Common
Abbreviated Dialing.In 0412 Item 4, enter 1
to allow DISA caller to
use Common
Abbreviated Dialing.Should DISA callers Class
of Service allow use of
Common Abbreviated
Dialing?
In 0412 Item 3, enter 0 to
prevent dialing trunks via
Service Code 805.In 0412 Item 3, enter 1 to
allow dialing trunks via
Service Code 805.Should DISA callers Class
of Service allow dialing
Service Code 804 and a
Trunk Group for outside
calls?
Continued
from
previous
page.
Features D-M
Direct Inward System Access (DISA)
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							Programming (Cont’d)
Continued
from
previous
page.
Should DISA callers
Class of Service allow
dialing #9 to select a
specific trunk for an
outside call?
In 0412:8, enter
1 to allow Direct
Trunk Access.In 0412:8, enter 0 to
prevent Direct Trunk
Access.
Should the system
Toll Restrict calls the
DISA caller places
over system trunks?In 1812, enter a Toll
Restriction Class (1-15 in
384i, 1-8 in 124i) for
each DISA user (1-15).
After the system
answers, does DISA
caller have adequate time
to dial their number?Set Toll
Restriction in
0701 and 0702.
Check the settings of:
0405:17 - DTMF Receiver Active Time
0405:34 - DISA Dial Tone Time
Continued
on next
page.
YesNo
Yes
No
No
Yes
Features D-M
Direct Inward System Access (DISA)
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							Programming (Cont’d)
Continued
from
previous
page.
When DISA caller rings an
extension, does the system
ring for an adequate time
before setting the call as Ring
No Answer?In 0405 Item 35,
change the DISA
No Answer Time.
When DISA caller makes an
Internal Page, does the
system allow the Page to
continue for an adequate
duration?In 0405 Item 75,
change the DISA
Internal Paging Time.
When DISA caller makes
an External Page, does the
system allow the Page to
continue for an adequate
duration?In 0405 Item 76,
change the DISA
External Paging Time.
In 0116, check the criteria for
DTMF tones for compatibility
with the telco.
Are the gains
(volumes) on the DISA
trunks correct?For each DISA trunk,
in 0901 Item 3 set the
CODEC Gain Type.
If required, in 0117
change the transmit and
receive levels for the
CODEC Gain Types.Go to the
flowchart on
the following
page.
No
Yes
No
Yes
No
Yes
No
Yes
Features D-M
Direct Inward System Access (DISA)
250   FEATURES92000SWG08  Issue 1-0