1.9 Automatic Route Selection (ARS) Features
1.9.1 Automatic Route Selection (ARS)
Description
The PBX automatically selects the least expensive route (carrier) available at the time a long-distance call is made on an outside (CO) line that has Automatic Route Selection (ARS) enabled. In order to use ARS effectively, various ARS-related tables must be preprogrammed to tell the PBX which calls should be placed using which carriers.
1.9 Automatic Route Selection (ARS) Features
[Flowchart]
No Yes No
The dialled number is sent to the telephone company.
The dialled number (other than the First Carrier Access code) is sent to the telephone company.
Yes No
Yes Reorder tone
No Each time a digit is dialled, the PBX checks
the dialled number (other than Host PBX Access codes, Carrier Exception codes, and First Carrier Access code).
Does the leading number match the Route 1–4
Exception Code?
Digits are removed from the dialled number as required.
Digits are added to the dialled number as required.
Is the dialled number an Emergency Call number?
Is (another) one digit dialled within the ARS
Inter-digit Time?
Is the dialled number a TRS Denied Code?
Is the dialled number a TRS Denied Code?
Does the dialled number include the First Carrier
Access code?
Does the leading number match the Route 1–4
Selection Code?
The dialled number is sent A
to the telephone company. Goes to
Yes No
Are 7 digits (other than Host PBX Access codes, Carrier Exception
codes, and First Carrier Access code) dialled?
Checks the Routing Plan Table (1–4) to determine which carrier to use.
*2 *3 *4
The corresponding Routing Plan Table is selected.
*5
*6
*1
1.9 Automatic Route Selection (ARS) Features
[Programming Procedures]
1.
ARS Mode ( ARS Selection [350])Turn on ARS for each outside (CO) line.
2.
First Carrier Access Code*1Enter the carrier's access code, such as the Host PBX Access code ( Host PBX Access Code [403]), Carrier Exception code ( Carrier Exception Code [300]), or First Carrier Access code ( 1st Carrier Selection Code [359]). For example, if the dialled number is "000-93-425-9477" and the First Carrier Access code is assigned as "000", the modified number is "93-425-9477". Consult your carrier for more information.
3.
Routing Plan TableLeading Number*2 ( Route 1-4 Selection Code [351-354])
Store the leading numbers of telephone numbers that should be routed by ARS.
Leading Number Exception*3 ( Route 1-4 Exception Code [355-358])
Store the telephone numbers that will bypass ARS here.
Note that the Outside (CO) Line Access number is always ignored by ARS and does not need to be programmed here.
Calls that are exempt from ARS are connected via the default carrier for that line.
Removed Number of Digits*4 ( ARS Modification—Removed Digits [360])
There may be circumstances where the user-dialled number must be modified in order for the carrier to connect the call. In this case, store the number of digits to be removed automatically from the beginning of the dialled number here.
Added Number*5 ( ARS Modification—Added Number [361])
Store the number to be added automatically to the beginning of the dialled number here.
ARS Outside (CO) Line Group*6 ( ARS CO Line Group [364])
When making outside (CO) line calls using the Automatic Line Access number (9/0)*, assign the outside (CO) line group(s) for each Routing Plan number here.
An outside (CO) line belonging to the assigned outside (CO) line group(s) is automatically seized when making calls using the Automatic Line Access number, and the dialled number is applied to one of the Routing Plan numbers.
Note
* For New Zealand, the Automatic Line Access number may be either 1 or 9.
Local Call First
Carrier
1.9 Automatic Route Selection (ARS) Features
[Programming Example: Routing Plan Table]
In this example:
4.
Authorisation Code & Itemised Billing Code TableAuthorisation Code ( Route 1-4 Authorisation Code [381-384])
An Authorisation code for each carrier can be assigned for each outside (CO) line, if required by the carrier. The registered codes are not shown on proprietary telephone (PT) displays or System Data Dump printouts ( System Data Dump [804]) after programming, but "Already Set" will be shown instead.
Itemised Billing Code ( Itemised Billing Code [389])
An Itemised Billing code can be assigned for each extension. It is possible to add the Itemised Billing code assigned to an extension to the Authorisation code for the carrier for each outside (CO) line through system programming ( Route 1-4 Itemised Billing [385-388]).
Routing
ARS Outside (CO) Line Group*5
*1 Route 1-4 Selection Code [351-354]
*2 Route 1-4 Exception Code [355-358]
*3 ARS Modification—Removed Digits [360]
*4 ARS Modification—Added Number [361]
*5 ARS CO Line Group [364]
Dialled Number Modified Number Description
9-43-425-9477 050-43-425-9477 A long-distance call is made using Routing Plan 1 when the Automatic Line Access number is assigned to "9".
9-54-123-4567 050-54-123-4567 A long-distance call is made using Routing Plan 1 when the Automatic Line Access number is assigned to "9".
9-93-425-9477 050-93-425-9477 A long-distance call via outside (CO) line group 1 is made using Routing Plan 2.
9-04-123-4567 050-04-123-4567 A long-distance call via outside (CO) line group 1 is made using Routing Plan 2.
9-07-81-92-477-1450 050-00-81-92-477-1450 An international call via outside (CO) line group 1 is made using Routing Plan 3.
9-6-123456 6-123456 A mobile telephone call via outside (CO) line group 2 is made using Routing Plan 4.
1.9 Automatic Route Selection (ARS) Features
Sequence of Transmitted Code ( Authorisation and Itemised Billing Code Order [390])
The sequence of transmitted codes (C: Carrier Access Code; A: Authorisation Code; I: Itemised Billing Code; H: Telephone Number) can be selected. When "C.I.A.H" is selected, the dialled numbers of Itemised Billing Code (I) and Authorisation Code (A) are shown on the displays of PTs and SMDR ( 1.20.1 Station Message Detail Recording (SMDR)).
[Programming Example: Authorisation & Itemised Billing Code Table]
In this example:
Code*1 Itemised Billing*2 Removed
No. of Digits
Added No.
1 8 0 11223344 0123456789
(on CO 1/2)
Enable (on CO 1/2)
(Itemised Billing Code:
Extn. 101)
2 5 0 11223344PPPP
#012345
(Itemised Billing Code:
Extn. 101)
*1 Route 1-4 Authorisation Code [381-384]
*2 Route 1-4 Itemised Billing [385-388]
Dialled Number Modified Number Description
9-893-425-9477 (Extn. 101)
Pulse*1 ( Dial Mode [401]) P (Pause)*2 ( Pause Time [417])
A call via provider access is made using Routing Plan 1 when the Automatic Line Access number is assigned to
"9".
The Authorisation code and the Itemised Billing code are transmitted in tone mode.
Pulse*1 Tone
11223344-P*2-0123456789-101-893-425-9477
Added No. Authorisation Code
Itemised Billing Code
Telephone No.
1.9 Automatic Route Selection (ARS) Features
Conditions
WARNING
The software contained in the ARS feature to allow user access to the network must be upgraded to recognise newly established network area codes and exchange codes as they are placed into service.
Failure to upgrade the on-premise PBXs or peripheral equipment to recognise the new codes as they are established will restrict the customer and users of the PBX from gaining access to the network and to these codes.
KEEP THE SOFTWARE UP TO DATE WITH THE LATEST DATA.
• ARS Inter-digit Time
The inter-digit time used while the PBX is checking the dialled number for the ARS feature can be specified through system programming ( ARS Inter-digit Time [363]).
• TRS
TRS checks are performed before ARS number modification, so programme TRS Denied Code Tables and Exception Code Tables accordingly ( 1.8.1 Toll Restriction (TRS)).
• If an extension user makes calls using the Automatic Line Access number, and the leading number of a dialled telephone number does not match any entries found in the Leading Number, an outside (CO) line enabled in Automatic Designated Line Access [419] is automatically seized.
• The PBX checks the number repeatedly until 7 digits have been dialled.
• If an extension user makes an outside (CO) line call by directly pressing a Single-CO (S-CO), Group-CO (G-Group-CO), or Other-Group-CO (O-Group-CO) button or by dialling an assigned Outside (Group-CO) Line Group Access number, and the seized outside (CO) line has been enabled in ARS Selection [350], the call is made with the ARS feature.