2N Omega series - VoIP manual v1.4 - Manual (Page 55)

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To delete a normalising rule, click on the symbol. To delete all rules,
select them by checking the last table column and click on Remove selected items
below the table.
There is an Add LCR normalising icon below the table. Click on it to display
the rule defining form.
The meanings of the form fields are identical with the following columns of the
normalising table:

Prefix
– a prefix that a number must start with to meet the
transformation rule.

Remove count – a count of characters to be removed from the
number beginning behind the prefix.

Add number
– a number to be added before the number part
after removal of the prefix and a defined count of digits.

Type
– defines the stage at which the normalising rule should be
applied. There are four options: Incoming calling
– on the calling
number input, Incoming called – on the called number input,
Outgoing calling – on the calling number output, Outgoing called –
on the called number output.

Description
– any text that describes the meaning of a
normalising rule.