Vodavi Infinite Dvx Iii Hybrid Key Telephone System Installation Manual

							inflnitem DVX I’
Digital Key Telephone SystemLEAST COST ROUTING (LCR) PROGRAMMING
SECTION 765LEAST COST ROUTING (LCR) 
PROGWMING
765.1INTRODUCTION
Least Cost Routing (LCR) selects the most eco-
nomical programmed route for an outgoing call.
When a station user dials an outside number,
the LCR feature analyzes the number and then
automatically chooses an outside line from the
group that has been programmed as most eco-
nomical. The LCR feature puts the responsibil-ity of choosing the least expensive route for
each area code and exchange code on the sys-tem administrator, not on the station user. In
order to make a routing decision, the LCR fea-ture is programmed in the system database.
The successful operation of this feature is com-pletely dependent on the accuracy of the pro-
gramming. Refer to Figure 765-l LCR
Flowchart for assistance.
There are eight different tables which are set up
to monitor the dialing of digits and to select the
best route for the call depending on time of day
and day of week.
These tables are:l 3-Digit Area/Office Code Routing Table
l 6-Digit Office Code Routing Table
l Exception Table
l Route List Table
l Insert/Delete Table
l Daily Start Time Tablel Weekday (Weekly) Schedule
l Toll Information TableA. LCR Operation
The system first checks to see if the number
dialed is more than two digits. If it is two digitsor less, the call is processed according to in-
structions in the Exception Table. If the num-
ber is not found in the Exception Table, the call
is denied.
If the number is more than two digits, it goes to
the 
3-Digit Table. If the first digit dialed is a “1”the leading 1 table will be checked with the
following three digits. If the first digit dialed is
not a 
“l”, then the first three digits are checkedagainst the Non-Leading 1 3-Digit table. The
first three digits (either office code or area code)
are then checked to see if they are in the 3-Digit
Table. If they are not found there, the call is notrouted. If the digits are found in the S-Digit
Table, the system then checks for an entry to
see if the 6-Digit Table must be referenced.
If the 6-Digit column is marked (yes] in the three
digit table entry, the number is then checked in
the 6-Digit Table.
There are 20 6-Digit tables. Each 6-Digit tableis programmed and becomes associated to a
specific area code with a selected route. Office
codes are entered into the 6-Digit table that willbe routed to a specific route list table. This
allows the system administrator to split area
codes for routing to different lines connected to
the system. This helps when Foreign Exchange
lines 
(FX Lines), Banded WATS lines, or “Dedi-
cated” Lines 
(OPXs from another system) are in
use.If the office code is not found in the S-Digit
Table, the call is referred back to the 3-Digit
Table for selecting a route list table. And then
goes through the same procedures as describedbelow.
Before actually selecting a route list table, the
number is checked against the toll restriction
tables (station COS). When 
LCRis enabled, only
station Class of Service is referenced. CO line
Class of Service is no longer applicable. All CO
lines are considered Class of Service 1.
If the call is not allowed through the toll restric-
tion tables, the call is denied. If it is allowed, the
call then goes to the Route List Table as speci-
fied by either the 3-Digit or 6-Digit table.
The Time of day and Day of week is determinedand the call is presented to the corresponding
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							injinitem DVX I’LEAST COST ROUTING (LCR) PROGRAMMINGDigital Key Telephone System
time period route within the specified route
table. Each of the 16 Route Tables contain four
time sensitive routes. Routes are determined by
the time of day and day of week as specified inthe Daily Start Time table and the Weekly
Schedule table.After the appropriate route is selected, LCR
Class of Service becomes applicable. A stationcan use only those line groups programmed
with a priority number equal to or higher than
the station’s LCR Class of Service.
If a line is not available in the first choice line
group, the system advances to the next choiceline group and searches for a free line. This
process continues until an available line is
found, or the last available line group is
searched ,or until a line group is reached with
a priority assignment lower than the station’s
LCR Class of Service assignment.When a line is available the system will seize
that line and wait for dial tone. Then before
dialing, the system checks the Insert/Delete
table for digits that should be deleted from the
front of the number or digits that should be
inserted either before or after the number di-
aled. Finally the system begins to dial the num-ber out over the selected line. All of this
analyzing and manipulation of the number
takes only a fraction of a second from the time
the station user begins to dial until the number
is dialed out over the public network lines.If no lines are available in any of the CO line
groups programmed for that route and allowed
to that station, the call can be 
automaticaIly
queued on to the first choice (least costly) linegroup. If the user waits three seconds after
dialing the number, they will hear confirmationtone which indicates that an automatic LCR
Queue Callback has been activated on the firstchoice line group. When a CO line becomes
available in the first choice line group the sys-tem will ring the calling station. When an-
swered by the station the system will
automatically seize the line and redial the num-
ber.765-2
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Digital Key Telephone System
LEAST COST ROUTING (LCR) PROG-GROUTE ASSIGNED
FROM EXCEPTION SEARCH EXCEPTION
FOUND
TABLE FOR MATCH
NOT
FOUND
SYSTEMCLOCK SEARCH
3-DIGIT
TABLE FOR
MATCHCOMPARE # DIALED
WITH STATION’S
DIALING PRIVILEGES NOROUTE ASSIGNED
w FROM 3-DIGITTABLE
LYES
NOT
%%I%:FOUND
TABLE FOR
MATCHI----LIST SELECTED FOR
ROUTE FROM DAILY
START TIME ANDWEEK+;LYfHlDULECO LINE SELECTED
FROM FIRST
AVAILABLE TRUNK
GROUP IN LIST OF
ALL LINESROUTE ASSIGNED
IBUSY
INSERT/DELETE
TABLE IS USED IF
LINE
’ ASSIGNED WITH
AVAILABLETRUNK GROUP I
I
1FOUND
CALL IS QUEUED ON
LEAST COSTLYGROUP IN LIST OF
ROUTE ASSIGNED
J
Figure 765-l LCR Flowchart
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							in.nitem DVX I’LEAST COST ROUTING (LCR) PROGRAMMINGDigital Key Telephone System
LCR PROGRAMMTNG (Cont’d)
765.2LCR TABLES PROGRAMMING
Programming StepsIf the system is in the programming mode,
continue using the program codes. If starting toprogram here, enter the programming mode.
Refer to Sec. 700.2, Program Mode Entry (Key
Station).
To program the system for Least Cost Routing:
1.Press FLASH and dial [75]. The following
message is shown on the display phone:
2.There are eight tables which can be pro-
grammed here for 
LCR (you must also
program LCR Class of Service in Station
Progr
amming).Use the procedures listed
below to program these LCR tables.
It is extremely important that the
worksheets becompletedbefore
programming the LCR tables.
Description
The Least Cost Routing (LCR) feature allows for
the automatic selection of the most economicaltrunk according to the number dialed and the
time of day and day of the week. There are eight
different tables which are set up to monitor thedialing of digits of a station and to select the
best route programmed for the call. These ta-
bles are:l 3-Digit Area/Office Code Routing Table
l 6-Digit Office Code Routing Table
l Exception Table ,
l Route List Table
l Insert/Delete Table
l Daily Start Time Tablel Weekday (Weekly) Schedule
l Toll Information Table
The buttons on the digital terminal are defined
as shown below when entering the LCR Tables
programming area:
~r$g--l/~~
~Jf!$y-lF!iq~~Default: Refer to Figure 775-8 DB Printout of
LCR Default for a complete listing of the LCR
default data.Related Programming: Refer to Sec. 710.2,
System Features Programming, LCR Enable ;
730.1, Station Attributes Programming,
Station Class of Service (COS); and Sec. 730.1,
LCR Class of service (COS).765-4
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LEAST COST ROUTING (LCR) PROGRAMMING
LCR PROGRAMMING (Cont’d)
A.
3-Digit Area/Office Code Table
Programming Steps
1.Press 3-DIGITTABLE flexible button (But-ton # 1). The following message will be
shown on the display phone:
Where:
- L = [O] for non leading l(“1” not dialed)
[ 11 for leading 1 (“ 1” is dialed)
- NNN = area/office code
- RR = route list number 00-15
- Y = [O] do not go to 6-Digit table
[ 11 go to B-Digit table
-PP = number of digits expected to be
dialed.
2.Press the HOLD button to save the entry.Confirmation tone is heard and the dis-
play will now update.
Description3-Digit Area/Office Code Table. This table is
divided into two sections 
- Leading 1 (a [ll is
dialed before the number) and Non Leading 1
(no [ 11 is dialed before the number). This gives
the system the ability to handle call routing inareas that require a 
[l] before a long distance
number, as well as in areas that do not require
the [ 
11.Both of these tables include all area codes
(NPA’s), and office codes (NX&), from 000 to
999, including such numbers as 9 11,4 11, etc.A complete entry into these tables include a
route list table to be used, if the 6-Digit Table
is to be checked and the number of digits likely
to be dialed (example 7 digits or 10 digits).All local office codes must be entered in this
table even if they do not require long distance
calling.
The number of digits to expect entry will aid thesystem in identifying when the last digit is
dialed and to begin routing the call. This also
helps to free SLT DTMF receivers if SLT traffic
in the system is heavy.For international calls, use 
“00” as number of
digits to expect. This causes the system to wait
five seconds after user dials last digit before the
system accesses a CO line and dials out.Appendix A-13 
3-Digit Area/Office Code Route List Table
Figure 765-2 
Exz s-Digit Area/Office Code Table Pgm Form
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							injinitem DVX I’LEAST COST ROUTING (LCR) PROGRAMMINGDigital Key Telephone System
LCR PROGRAMMING 
(Co&d)B.
s-Digit Office Code Table
Programming Steps
1.Press the 6-DIGIT TABLE flexible button
(Button 
# 2). The following message is
shown on the display phone:
y
Where:
- S = [O] to remove codes
[ 11 to add codes
- AAA = area code
- RR = route number 00- 15
- NNN = office code
2.Press the HOLD button to save the entry.
Confirmation tone is heard and the dis-
play will now update.
3. Enter additional office codes to be pro-
grammed into the same Area Code/ Route
Table, pressing hold after each office code
entry.
4.Press a flexible button to program a differ-
ent table.DescriptionS-Digit Office Code Table. This table is used
to determine a route for one or a group of
individual office codes within an area code.
Certain office codes within an area code can be
given unique or special routing. If the office codedialed is not found in the 6-Digit Office Code
Table, the call is then routed according to the
route list table as was entered in the 3-Digit
Table.The system allows for 20 6-Digit Area/Office
code tables that may be used to route specific
office codes within an area code. Each table will
route calls for a common 
area code to a specifiedroute. All entries made into a table will route
those office codes to the specified route list
table. An area code may be entered into more
than one 6-Digit table with different routes
specified.To delete all entries in an Area Code/Route
table, enter [0 AAA RR 
###I.
Appendix A-l 4 6-Digit Off ice Code TableFigure 765-3 
J3x: s-Digit Office Code Table Pgm Form
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LEAST COST ROUTING (LCR) PROGRAMMING
LCR PROGRAMMING 
(Co&d)C. Exception Code Table
Programming Steps1. Press EXCEPTION TABLES flexible 
but-ton (Button 
#3). The following message
will be shown on the display phone:
DescriptionException Table. This table is used for 
opera-
tor calls and any other calls which would use a
one-digit or two-digit entry, rather than a 
three-
-digit area code.
Where:
- S = [O] to remove code from table,
[l] to add code to table
- XX= exception codes for single digit
codes, press MUTE button as 2nd digit).The digits 
[%I and [#I may be entered as
valid digits.
- RR= route table number, 00- 15
2.Press the HOLD button to save the entry.Confirmation tone is heard and the dis-
play will now update.
3.Press Button #3 again for further entries.Up to 20 Exception codes may be pro-
grammed in this table.
Appendix A-15 LCR Exception Code TableFigure 765-4 Ex: Exception Code Table Pgm Form
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							infiniteTM DVX I’
mmLCR 
PROGRAMMING (Cont’d)
D. Route List Table
Programming Steps
1.Press the ROUTE LISTTABLE flexible but-ton (Button 
#4). The following message
will be shown on the display phone:
Where :
-RR = Route List Table number 00- 15
- T = Time Period Route list l-4
- G = CO Line Group l-7
- DD = Insert/Delete Table reference OO-
19 (## for none)
- L= LCR Class of Service (LCOS)
2.Press the HOLD button to save the entry.Confirmation tone is heard and the dis-
play will now update.
3.To enter additional CO line groups in the
same time period route list number: DialG DD L HOLD
To enter data for a different time period route
list:
1.Press program button 4 and enter all dam(RRTGDDL).
2. Repeat above to program a new Route
Number 00 to 15 or press a flexible button
to program other 
LCR information.The following message will be shown on the
display when the Call Cost feature has been
enabled in Flash 05, Button # 11.
Where:
-RR = Route List Table number 00- 15
- T = Time Period Route list l-4
- CCC = Cost for one minute $O.OO-$9.99
- G= CO Line Group l-7
- DD = Insert/Delete Table reference OO-
19 
(## for none)
- L= LCR Class of Service (LCOS)
DescriptionRoute List Table. Up to 16 different Route list
tables can be programmed. Each route list table
contains four time period routing lists, one foreach of the available (four) daily start time
periods. Within each time period route list up
to seven CO (outside) line groups and their
corresponding Insert/Delete Table if any and
LCR class of service priority are programmed on
a per line group basis.When routing a CO call through LCR, CO Line
groups are accessed in sequence so that the
first line group entered represents the least
costly (and first selected) anti the last line groupentered represents the most costly (and last
selected).The Route List Table references many other
tables when processing a call for routing. First
of all, the Daily start time table is referenced todetermined what start time entry should be
checked in the weekly schedule table. The cor-
responding entry in the weekly schedule tabledepending on the day of the week then deter-
mines which Time Period Route list should be
used within the Route List Table.
The system then begins to check for idle linesin the first entered CO line group and will
proceed until an idle line is found. While it is
searching for an idle CO line the Station 
LCR
COS is checked against the entries for LCR COS
Priority of the specific CO line groups (see LCRCOS Priority explanation below). Once an idle
CO line is found with a LC!R priority equal to or
higher than the stations 
LCR COS then a final
check is made to determine if an Insert/Deletetable should be referenced. Once all of the
tables and entries are checked the system then
processes the call on the outside CO line.
Make sure gou have mode entries into allTimePeriodRouteListthatare referencedintheureekLysched.uZetabZe.Related Programming: Refer to Sec. 710.2,
System Features Programming, Call Cost
Display Feature programming.765-8
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							injiniteTM DVX I’Digital Key Telephone System
LEAST COST ROUTING 
&CR) PROGRAMMING
LCR PROGRAMMING (Cont’d)
Route List Table (Cont’d)
Programming Steps
DescriptionLCR COS Priority. A station should be as-
signed a class of service for LCR. Refer to Sec.730.1, Station Attributes Programming, LCR
Class of service (COS). The 
LCR COS can be
between 0 and 6, with 0 being unrestricted and6 being the most restrictive. Within the time
period route List Table, line groups are given an
LCR COS priority assignment between 0 and 6.A station using LCR will be able to use only
those CO (outside) line groups with a priority
assignment of equal or higher value than the
station’s LCR Class of Service (i.e. a station with
LCOS 3 can use line grckrps with a priority of- -3-6).Table 765-l LCR Class of Service Table
-Allowed AccessLCR CO Line Group 
Rriorityto Route
0123456
S0YY
YYYYY
T
HI1INIY
IY
IY
IY
IY
IY
I
L
C2NNYYYYY
R
3NN
NYYYYC0
S4
NtNNNYY
5N
NNNNYY1
6NNNNNNY
N= Cannot use Line Group
Y= Has access to Line Group
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LEAST COST ROUTING 
&CR) PROGRAMMING
Digital Key Telephone System
LCR PROGRAMMING (Cont’d)E. Insert/Delete Table
Programming Steps1. Press INSERT/DELETE TABLE flexible
button (button #5). The following messagewill be shown on the display phone:
Enter the table information as follows;
Where:
- TT = Insert/Delete Table Number 00- 19
- X = [O] Pi-e-Delete numbers (first digits
dialed in the number),
[l] Pre-Insert numbers (insert digits in
front of number dialed,
[2] Post-Insert numbers (insert digits be-
hind number dialed)
- DDD = digits (up to 18digits may be
deleted from the beginning of the num-ber dialed and up to 40 digits can be
inserted (20 pre and 20 post)).
2.Press the HOLD button to save the entry.Confirmation tone is heard and the dis-
play will now update.
To add and delete numbers in the same table,
enter the different insertion/deletion tables in
step 1 and enter as separate entries using the
same table number.
In the Insert Tables for 
LCR programming:
1.Press the TRANS button for a pause.
- The [*AC] and [#I digits are allowed as valid
digits for inserting digits dialed over the
network.
s- The [+%I and [#I are valid entries for add-
ing digits in both the pre (in front 
of) or
post (behind the number) tables.
- The [%I and [#I can not be used as delete
characters in the Delete Tables.To delete a Table, enter the Table number fol-
lowed by the HOLD button.
DescriptionInsert/Delete Table. Digits can be either
added or deleted when dialing a number. For
instance, if a user dials a long distance caIl thatshould be placed on a foreign exchange 
(FX)line, the digit 
[l] and the three-digit area code
(NPA) dialed by the user must be deleted beforethe call can be placed on that FX line. An
Insert/Delete Table can be programmed to do
this. Digits can also be added to a number that
has been dialed by the user. For instance, OtherCommon Carrier (OCC) access codes and
authorization (ID) codes can be automatically
inserted by the system either in front of and/or
behind the number dialed.There are 20 Insert/Delete Tables and each
table allows for entries into a delete table and apre and post insert table. Up to 40-digits (in-
cluding pauses) can be inserted 
20-pre and
20-post) and up to 16digits can be deleted.
Digits can be inserted before or after the num-
ber dialed but can be deleted only from the start
of the number dialed.
Figure 765-5 Ex: Insert/Delete Pgm Form
765- 10
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