Normal Call (recording required)
The following illustration shows a normal call using selective recording with recording required. For SDP and Metadata information in Notes 1 and 2 , see Sample SDP and Metadata.

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- UA-A sends INVITE to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller forwards INVITE with SDP and metadata to SRS.
- SRS responds with OK to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller sends INVITE to UA-B.
- UA-B responds with OK to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller sends re-INVITE with SDP and metadata changes to SRS.
- SRS responds with OK to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller forwards OK response to UA-A.
- RTP stream initiated between UA-A and Oracle® Enterprise Session Border Controller.
- RTP stream initiated between Oracle® Enterprise Session Border Controller and UA-B.
- RTP stream initiated between Oracle® Enterprise Session Border Controller and SRS.
- UA-A sends BYE to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller responds with OK to UA-A.
- Oracle® Enterprise Session Border Controller sends BYE to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller responds with OK to UA-A.
- Oracle® Enterprise Session Border Controller sends BYE to UA-B.
- UA-B responds with OK to Oracle® Enterprise Session Border Controller.
- Oracle® Enterprise Session Border Controller sends BYE to SRS.
- SRS responds with OK to Oracle® Enterprise Session Border Controller.