I've never used it but for E1,

Outgoing Number Assignment
This form allows you to select the outgoing numbering plans for Euro ISDN Standard trunk variants provided by the embedded PRI/BRI functionality available on the 3300 ICP controller. To meet the specific ISDN requirements of a European region, you can select the Calling Number and Called Number parameters.
Note: This feature only applies to BRI or E1 interfaces running the Euro Standard protocol of the Euro ISDN variant.
Calling Number
For the calling number, you can set the Type of Number and Numbering Plan ID. When a Party Number Information Element is included in the outgoing SETUP message, this feature takes effect and the Type of Number and Numbering Plan Fields of the Calling Party Number will be set to the values programmed in this form.
Called Number
For the called number, you can set the Numbering Plan ID. This setting applies to outbound calls only. When a Called Party Number Information Element is included in the outgoing SETUP and INFO message, this feature will take effect and the Numbering Plan ID will be set to the value programmed in this form.

Controller Module System-generated, protected field. Identifies the module position (1-4) in the controller.
Port System-generated, protected field. Identifies the port (1 or 2) in the module.
Calling Number
Type of Number Set the Type of Number field to Unknown, International Number, National Number, Network Specific, or Subscriber. Default is Unknown.
Numbering Plan ID Set the Numbering Plan ID to Unknown, ISDN/Telephony, Data, Telex, National Standard, or Private. Default is ISDN/Telephony.
Called Number
Numbering Plan ID Set the Called Number - Number Plan ID to Unknown, ISDN/Telephony, Data, Telex, National Standard, or Private. Default is Unknown.
Selecting the Outgoing Numbering Plans
From the Selection menu, choose System Configuration.
Click Trunks, click Digital Trunks, then (depending on trunk type) click
ISDN-BRI or
ISDN-PRI and then click E1.
Click Outgoing Call Characteristics and then click Outgoing Number Assignment.
Note: The form only shows the links that are either PRI/E1 Euro ISDN/Euro Standard or BRI-T interfaces.
CAUTION: If you change the protocol variant in the Protocol Assignment form, the programming detail in this form will be deleted.
Select the Controller Module/Port of the trunk and click Change (or Change All).
Select the
Type of number
Calling Number Number Plan ID
Called Number Numbering Plan ID
Click Save.


JimmyV

"Well informed people know it is impossible to transmit the voice over wires. Even if it were, it would be of no practical value" Boston Post, 1865