REFER Call (REFER handled by Oracle® Enterprise Session Border Controller)
The following illustration shows a call using selective recording and the Session Border Controller (Oracle® Enterprise Session Border Controller) handling the REFER on the call. Recording is required in this call flow.
| Call Flow Description | |
|---|---|
| 1 - UA-A sends INVITE to Oracle® Enterprise Session Border Controller. | 16 - Oracle® Enterprise Session Border Controller sends NOTIFY with OK response to UA-A. |
| 2 - Oracle® Enterprise Session Border Controller forwards INVITE with SDP Offer and metadata to SRS. | 17 - UA-A sends BYE to Oracle® Enterprise Session Border Controller. |
| 3 - SRS responds with OK to Oracle® Enterprise Session Border Controller. | 18 - Oracle® Enterprise Session Border Controller responds with OK to UA-A. |
| 4 - Oracle® Enterprise Session Border Controller sends INVITE to UA-B. | 19 - Oracle® Enterprise Session Border Controller sends re-INVITE to UA-B. |
| 5 - UA-B responds with OK to Oracle® Enterprise Session Border Controller. | 20 - UA-B responds with OK to Oracle® Enterprise Session Border Controller. |
| 6 - Oracle® Enterprise Session Border Controller sends re-INVITE with SDP and metadata changes to SRS. | 21 - Oracle® Enterprise Session Border Controller sends re-INVITE to SRS with new SDP and metadata. |
| 7 - SRS responds with OK to Oracle® Enterprise Session Border Controller. | 22 - SRS responds with OK to Oracle® Enterprise Session Border Controller. |
| 8 - Oracle® Enterprise Session Border Controller forwards OK response to UA-A. | 23 - RTP stream initiated between Oracle® Enterprise Session Border Controller and UA-B. |
| 9 - RTP stream initiated between UA-A and Oracle® Enterprise Session Border Controller. | 24 - RTP stream initiated between Oracle® Enterprise Session Border Controller and UA-C. |
| 10 - RTP stream initiated between Oracle® Enterprise Session Border Controller and UA-B. | 25 - RTP stream initiated between Oracle® Enterprise Session Border Controller and SRS. |
| 11 - RTP stream initiated between Oracle® Enterprise Session Border Controller and SRS. | 26 - UA-C sends BYE to Oracle® Enterprise Session Border Controller. |
| 12 - UA-A sends REFER-TO: C to Oracle® Enterprise Session Border Controller. | 27 - Oracle® Enterprise Session Border Controller responds with OK to UA-C. |
| 13 - Oracle® Enterprise Session Border ControllerOracle® Enterprise Session Border Controller responds with 202 ACCEPTED to UA-A. | 28 - Oracle® Enterprise Session Border Controller sends BYE to UA-B. |
| 14 - Oracle® Enterprise Session Border Controller sends INVITE to UA-C. | 29 - UA-B responds with OK to Oracle® Enterprise Session Border Controller. |
| 15 - UA-C responds with OK to Oracle® Enterprise Session Border Controller. | 30 - Oracle® Enterprise Session Border Controller sends BYE to SRS. |
| 31 - SRS responds with OK to Oracle® Enterprise Session Border Controller. | |
