Lcr; Chapter 19 Lcr - ZyXEL Communications X6004 User Manual

C
H A P T E R
19.1 Overview
This chapter shows you how to configure dialing rules, also referred to as LCR (Least Cost
Routing) on the X6004.
The following figure shows an example of two LCRs. LCR1 is composed of outbound line
groups PSTN and ISDN along with the dial condition 01. (the period (.) is part of the dial
condition). LCR2 is composed of outbound line group ITSP along with the dial condition 02..
When a user calls "021234" the call is routed through the outbound line group defined in

LCR2.

Figure 221 LCR Components Example
LCR1
Dial Condition
= 01.
LCR2
Dial Condition
= 02.
When an LCR contains more than one outbound line group, as in the LCR1 example, the
administrator can prioritize the outbound line groups in the LCR. When a call is made using an
LCR with multiple outbound line groups, the X6004 tries to use the higher priority outbound
line group first and, if the line is not available, then it tries a lower priority outbound line
group.
The following figure shows a possible assignment of LCRs to authority groups. In our
example, the Sales authority group has been associated with both LCR1 and LCR2, so
extensions that are part of Sales can use any outbound line group they choose. The second
authority group - Research, only has LCR1 assigned to it, so extensions that are part of
Research cannot use outbound line group ITSP.
X6004 User's Guide
PSTN
ISDN
ITSP
19
LCR
243