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X6004 User’s Guide
185
CHAPTER 20
LCR
This chapter shows you how to configure dialing rules, also referred to as LCR (Least Cost
Routing) on the X6004.
20.1 LCR Overview
LCRs are made up of two components. The first part of an LCR is a set of 1 or more outbound
line groups (see Chapter 18 on page 163). The second part of an LCR is a dial condition, or a
pattern of digits that distinguish each individual LCR.
LCRs are used to give calling rights to authority groups, trusted SIP peers as well as outbound
line groups. This is done via group management, see Chapter 21 on page 191. Once you create
an LCR, you can associate it with:
• Authority Groups - give all the extensions contained in an authority group the right to
use the outbound line groups configured in the LCR.
• Trusted SIP Peers - give the telephones connected to the SIP peer the right to call the
X6004 and then dial out from the X6004 using the outbound line groups configured in the
LCR.
• Outbound Line Groups - give anyone calling in via the associated outbound line group
the right to use the X6004 to make calls via the outbound line groups configured in the
LCR.
The following figure shows an example of two LCRs. LCR1 is composed of outbound line
groups PSTN and TrustedPeer 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 166 LCR Components Example
PSTN
TrustedPeer
ITSP
LCR1
LCR2
Dial Condition
= 01.
Dial Condition
= 02.