Call Signaling

The Oracle® Enterprise Session Border Controller media manager performs early media suppression according to an early media suppression rule. No change has been made to call signaling. For SIP, the Oracle® Enterprise Session Border Controller still forwards SDP received in an INVITE request or response after performing a NAT to the media connection address. After which, the Oracle® Enterprise Session Border Controller is ready to receive media packets from the endpoints. If an early media suppression rule has been configured, the Oracle® Enterprise Session Border Controller drops the packets going in the direction being specified by the rule.

For a H.323 to SIP call, early media suppression rule does not change how the Oracle® Enterprise Session Border Controller performs H.225/Q.931 call signaling and starts the H.245 procedure (if required) to establish logical channels for early media on the H.323 leg of the call.