AudioCodes Mediant 3000, User Manual

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User's Manual 216 Document #: LTRT-89729
Mediant 3000
Below are a few examples of how you can implement LCR:

Example 1: This example uses two different Cost Groups for routing local calls and
international calls:
Two Cost Groups are configured as shown below:
Cost Group Connection Cost Minute Cost
1. "Local Calls" 2 1
2. "International Calls" 6 3
The Cost Groups are assigned to routing rules for local and international calls in the
Outbound IP Routing table:
Routing Index Dest Phone Prefix Destination IP Cost Group ID
1 2000 x.x.x.x 1 "Local Calls"
2 00 x.x.x.x 2 "International Calls"

Example 2: This example shows how the device determines the cheapest routing rule
in the Outbound IP Routing table:
The Default Cost parameter (global) in the Routing Rule Groups table is set to Min ,
meaning that if the device locates other matching LCR routing rules (with Cost Groups
assigned), the routing rule without a Cost Group is considered the lowest cost route.
•
The following Cost Groups are configured:
Cost Group Connection Cost Minute Cost
1. "A" 2 1
2. "B" 6 3
•
The Cost Groups are assigned to routing rules in the Outbound IP Routing table:
Routing Index Dest Phone Prefix Destination IP Cost Group ID
1 201 x.x.x.x "A'
2 201 x.x.x.x "B"
3 201 x.x.x.x 0
4 201 x.x.x.x "B"
The device calculates the optimal route in the following index order: 3, 1, 2, and then
4, due to the following logic:
•
Index 1 - Cost Group "A" has the lowest connection cost and minute cost
•
Index 2 - Cost Group "B" takes precedence over Index 4 entry based on the first-
matched method rule
•
Index 3 - no Cost Group is assigned, but as the Default Cost parameter is set to
Min , it is selected as the cheapest route
•
Index 4 - Cost Group "B" is only second-matched rule (Index 1 is the first)