Emergency Session Handling Configuration Procedures

Note the value of the allow-anonymous parameter in the SIP interface's SIP Ports for the incoming interface you are configuring. When an incoming emergency call from an unregistered endpoint can not be characterized by this setting, the Oracle® Enterprise Session Border Controllerwill use the following means to route the call.

Set the anonymous-priority parameter in the incoming SIP interface. This parameter specifies that for an INVITE received from an anonymous endpoint, the Oracle® Enterprise Session Border Controller will choose a local policy of equal or greater policy priority for outbound routing.

Next, set the policy-priority parameter located in the local-policy configuration element. Most likely, this local policy will route messages to SIP devices that act on emergency calls. The local policy is selected when its value (or above) matches the anonymous-priority parameter in the sip-interface that receives the incoming phone call from an unregistered endpoint.

The enumerated values for both the anonymous-priority and policy-priority are: none, normal, non-urgent, urgent, emergency.