ZyXEL Communications X2002, User Manual

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Chapter 2 How It Works
X2002 User’s Guide
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2.3 Outbound Call Routing
Outbound call routing refers to calls originating from an extension on the X2002,
going via an outbound line group to a telephone outside your organization.
Outbound call routing requires that an authority group is linked to an outbound
line group. The link between the two is an LCR (Least Cost Routing). LCRs contain
the dialing rules for outbound line groups. Authority groups need to be associated
to LCRs to gain access to the outbound line groups.
In the most basic setup example an organization has one authority group (with all
of the company’s extensions), one outbound line group and an LCR which grants
the authority group access to outbound lines. Everyone in the organization has the
same rights to use outbound lines.
Figure 7 Outbound Call Routing - Basic
In a more advanced example, you can create two authority groups, still have one
outbound line group and two different LCRs. You can now control the types of
outbound calls that can be made by each authority group.
In the figure below, the SALES authority group has a local call LCR and a long
distance LCR associated to it. This allows its group members to make both local
and long distance calls via the outbound line group. R&D authority group only has
the local LCR associated to it so its group members can only make local calls via
the outbound line group.
Figure 8 Outbound Call Routing - Advanced
Authority
Group
Outbound
Line
Group
LCR
Authority
Group
SALES
Authority
Group
R&D
Outbound
Line Group
LCR - Local
LCR - Long Distance
LCR - Local