678 Matrix ETERNITY NE System Manual
Multi-Stage Dialing
What's this?
The Multi-Stage Dialing feature of ETERNITY is typically used in applications like Calling Card, where extension
users are required to dial digits in stages when making a call using the calling card.
The Multi-Stage feature enables extension users to directly dial the number they want to call, and the system dials
out the number at different stages of the call by suitably modifying the number.
How it works
A typical example of Multi-Stage Dialing is the use of prepaid Calling Cards. Here, the person using a calling card
must dial a fixed number string before dialing the actual number. When using a calling card,
• Users must first dial the number of the Calling Card server, for example: 1602233 (7 digits).
• After the call is answered by the Calling Card server, users must dial the PIN provided by the calling card
service provider, for example 1132121234.
• After dialing the PIN number, users can dial the number they want to call, for example 0014125126508.
Thus, when using a calling card, users must dial a very lengthy number string, each time they need to make a call
using the calling card.
The use of Multi-Stage Dialing saves the time and effort of dialing out lengthy digits in stages.
The Multi-Stage Dialing makes use of the “Automatic Number Translation” table. This table must be configured on
the trunk from which extension users will use to make calls using Calling Cards.
To take the above example further,
• Extension users are to be allowed to make international calls using Calling Card from the trunk CO1.
“Automatic Number Translation” table must be configured on CO1 trunk.
• The Automatic Number Translation table consist of Dialed Number Strings and Substitute Number strings.
• In the Dialed Number String, you must configure ‘00’, the prefix for international numbers.
• In the Substitute you must configure the Calling Card server number and the PIN Number.
• As the system must wait for the Calling Card server to answer before dialing the PIN, you must configure
Wait for Answer between the Calling Card server number and the PIN number.
You must insert a delay by configuring the Pause Timer after the PIN number and the destination number,
i.e. the prefix ‘00’.
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