Suggested Additional Configuration

• In the SIP ports configuration (accessed through the SIP interface configuration), the allow-anonymous parameter must be set to registered. This setting allows the Oracle® Enterprise Session Border Controller to accept SIP requests from session agents and registered endpoints only, but to accept REGISTER requests from any endpoint.
• For the SIP interface that accepts registrations, the options parameter must be set to reg-via-key. This setting allows the Oracle® Enterprise Session Border Controller to use the source address of an INVITE as the key to find a registration entry in the registration cache. When the INVITE’s Contact header matches the registered Contact in the registration entry, the Oracle® Enterprise Session Border Controller accepts the INVITE request.