Matrix ETERNITY NE, System Manual

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640 Matrix ETERNITY NE System Manual
Least Cost Routing - Carrier Pre-Selection
What’s this?
This type of Least Cost Routing is used in countries where the same service provider offers local call and long
distance calling services. These service providers allow subscribers to select the service provider or Carrier for long
distance calling.
For example,
A subscriber of Service Provider A must grab trunk lines of Service Provider A to call other subscribers in the local
area.
However, when the subscriber of Service Provider A wants to make a long distance call, the subscriber must dial a
prefix to select the a carrier (trunk) of the desired long distance, Service Provider B, C and D. Thus, the subscriber
accesses a secondary service provider by dialing a short code or prefix to for long distance calling.
This feature works on the basis of “Automatic Number Translation” . Using Automatic Number Translation,
ETERNITY NE adds the code of the appropriate secondary Service Provider to the number string dialed by the
extension user to route the call to the desired secondary Service Provider.
How to configure
To use this feature, you must do the following:
• Enable Automatic Number Translation feature on the trunk—CO, Mobile or SIP—of your Primary Service
Provider.
• Select an Automatic Number Translation Table Number from 1 to 8 for the trunk.
• Configure the Automatic Number Translation Table . In the Automatic Number Translation Table, in the
Dialed Number String column, enter the long distance numbers that extension users will dial. In the
Substitute Number String column, enter the Prefixes of the Secondary Service Providers which should be
added to the dialed numbers. For example, the code ‘961’ for Service Provider B must be prefixed to the
number ‘2630555’ dialed by extension users, you must enter ‘2630555’ in the Dialed Number String
column and ‘9612630555’ in the Substitute Number String column.
See “Basic Settings” for instructions for configuring Automatic Number Translation on the different Trunk Port
types . See also, feature description for “Automatic Number Translation” .
Subscriber
PBX
Service
Provider A
Service
Provider B
Service
Provider C
Service
Provider D