ACS: Number Nodes Explainer


Based on the diagram above and moving from left to right:

Calling Party

This node routes calls based on the telephone number from which the call is made. This allows callers whose phone numbers have specified
prefixes to be routed to different exits.

Calls are routed to the exit that is mapped to the best match between the calling party number and the prefixes that are in the node data. For example, if the prefixes entered into the node data are 04, 09, 04477 and 044, a caller from 044773384 will be routed down the branch associated with 04477, as this is the best match found for the calling party number. For calls where there is no match found in the prefix list, the call is routed down the default exit.

This node should be used in situations requiring MoLI (mobile origin Location identifier) routing whereby calls from the VHA network need to be captured. Customers should include a prefix of ‘04’ to capture calls from this

Geographical Routing

This node allows a Call Plan to be branched, based on
the geographic location of the calling party. This node may be used to offer different service to calls from certain locations. For example, routing to a local office. Each output may have multiple regions from the detailed mapping associated with it.

Calling Party Category

This node routes a call based on the category of Phone from which the call originates. A category number identifies calls within the system, indicating the type of telephone from which the call is made (for example, payphones, hotels or prisons).

Number Matching

The Number Matching feature node allows the user to enter one or more search patterns, against which the selected number is matched.


There is numerous origin based, geographic routing configuration options, including:

    Australia wide Routing

  • All calls originating in Australia are routed to the same Answering Point(s)

State BasedRouting (8 states)

  • Calls originating in state can be treated differently- i.e. be routed to different Answering Point(s)

Charge District (CD) Routing

  • Australia is divided to 206 CDs
  • Calls originating in each CD can be routed to particular Answering Point(s) nominated by the customer

Standard Zone Routing

  • Australia is divided into 2099 Standard Zones (SZ)
  • Calls originating in each SZ can be routed to particular Answering Point(s) nominated by the customer

Exchange Based Routing

  • Australia is divided into 4918 Exchange Serving Areas (ESA)
  • Calls originating in each ESA can be routed to particular Answering Point(s) nominated by the customer

Mobile Location Identifier (MoLI) Based Routing

  • Australia is divided into 205 MoLI areas
  • Calls originating in each MoLI can be routed to particular Answering Point(s) nominated by the customer
  • MoLI is not effective for calls from VHA mobiles (these calls can be captured using the Calling Number Category Node – specifying that all calls originating with prefix ‘04’ be captured).

Postcode Routing

  • Australia is divided into 2593 Postcode areas
  • Postcode routing uses a database AAPT has purchased which maps phone number to postcode
  • The database is based on phone numbers published in directories so ‘private’ numbers cannot be mapped
  • The postcode database is updated regularly on a quarterly basis.
  • ACS has developed a new feature, which allows callers to be prompted to enter their postcode when it cannot be found in the postcode database (this is done using the ‘Collect Digits to Buffer’Node).
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