
Chapter 6 Multisite WAN with Distributed Call Processing
Dial Plan Considerations
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Cisco IP Telephony Network Design Guide
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Cisco CallManager Configuration
On each Cisco CallManager cluster, you must configure the gatekeeper with the
intercluster codec you are using and must also enable the Anonymous Device. In
addition, you must configure a route pattern to allow calls between clusters.
To select the codec for intercluster calls, define a region and select the acceptable
rate (type of compression), as illustrated in Figure 6-11.
Figure 6-11 Configuring a Region in Cisco CallManager
The next step is to define a device pool and to associate it with the new region, as
illustrated in Figure 6-12.
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