TANDBERG Gatekeeper User Guide
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When the Gatekeeper is used with a Border Controller for firewall traversal, you will typically set
CallsToUnknownIPAddresses to Indirect on the Gatekeeper and Direct on the Border
Controller. This will allow calls originating inside the firewall to use the Gatekeeper and Border Controller
to successfully traverse the firewall. This is described in more detail in Dialing Public IP Addresses
(section 11.3).