Configuring Lcr; Configuring Cost Groups - AudioCodes Mediant 4000 SBC User Manual

User's Manual

Example 3: This example shows how the cost of a call is calculated if the call spans
over multiple time bands:
Assume a Cost Group, "CG Local" is configured with two time bands, as shown below:
Cost Group Time Band
TB1
CG Local
TB2
Assume that the call duration is 10 minutes, occurring between 16:55 and 17:05. In
other words, the first 5 minutes occurs in time band "TB1" and the next 5 minutes
occurs in "TB2", as shown below:
Figure 15-43: LCR using Multiple Time Bands (Example)
The device calculates the call using the time band in which the call was initially
established, regardless of whether the call spans over additional time bands:
Total call cost = "TB1" Connection Cost + ("TB1" Minute Cost x call duration) = 2 + 1
x 10 min = 12

15.5.2 Configuring LCR

To configure LCR, perform the following main steps:
1. Enable LCR - see Configuring SBC Routing Policy Rules on page 478.
2. Configure Cost Groups - see ''Configuring Cost Groups'' on page 253.
3. Configure Time Bands for a Cost Group - see ''Configuring Time Bands for Cost
Groups'' on page 254.
4. Assign Cost Groups to outbound IP routing rules - see ''Assigning Cost Groups to
Routing Rules'' on page 256.

15.5.2.1 Configuring Cost Groups

The Cost Groups table lets you configure up to 10 Cost Groups. A Cost Group defines a
fixed call connection cost and a call rate (charge per minute). Once configured, you can
configure Time Bands per Cost Group.
The following procedure describes how to configure Cost Groups through the Web
interface. You can also configure it through ini file (CostGroupTable) or CLI (configure voip
> sip-definition least-cost-routing cost-group).
Version 7.2
Start Time End Time
16:00 17:00
17:00 18:00
253
15. Services
Connection
Minute Cost
Cost
2 1
7 2
Mediant 4000 SBC