2N Omega series - VoIP manual v1.4 - Manual (Page 47)

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Check for barred numbers - the Barred numbers table is searched for match after
normalising and before transfer to the successfully found output line, and, if a
match is found, the call is rejected.
By default, the LCR connects all VoIP calls to the Ethernet module without
modifying the called number.
4.6.1. Routing Rules
Routing rules are the core of the LCR system. They consist of a relatively
high number of parameters, which make the routing process highly flexible. A guide
is available to make your configuration steps as convenient as possible.
Start with clicking on the Least Cost Router (LCR) item in the Telephony
services group tag menu. A table gets displayed with predefined routing rules and
buttons that help you change the sequence, add new items and modify and/or
delete the existing rules.
All the above-mentioned buttons except for Add are inactive in the default
status (greyish). They will not become active until one routing rule at least is
selected by ticking off the checkbox in the second column of the respective row.
Push the button activated in this way to execute the operation stated above the
selected routing rules.
4.6.2. Add Rule
Click on Add or Add after or Insert before to run the LCR adding guide. The
guide will be displayed in a new window.