![]() A SIP CANCEL, if this is a H.323 to SIP call and the H.323 side hangs up before the call is answered on the SIP side.An error response, if this is a SIP to H.323 call.Oracle® Enterprise Session Border Controller needs to send: Error during setup of the call on the H.323 side-In the event of an error during setup on the H.323 side of the call, the.Oracle® Enterprise Session Border Controller adds the Reason header in the SIP BYE request with the Q.850 value it received from the H.323 side. Oracle® Enterprise Session Border Controller checks the outgoing realm (the SIP side) to see if the addition of the Reason header is enabled. Active call released from the H.323 side-If an active call is released from the H.323 side, the.Oracle® Enterprise Session Border Controller uses the default mappings shown in the Default Mappings table. Oracle® Enterprise Session Border Controller uses its SIP-Q.850 map to determine the Q.850 that it will use to release the call. SIP response-When it receives the error response to an initial SIP INVITE, the.Oracle® Enterprise Session Border Controller releases the call on the H.323 side using the specified cause value. If there is a Reason header and it contains the Q.850 cause value, then the RFC 3326 states that the Reason header is mainly used for these types of requests. Oracle® Enterprise Session Border Controller determines if the request is a SIP BYE or SIP CANCEL message. SIP request containing a Reason header-When it receives a request containing a Reason header, the.Oracle® Enterprise Session Border Controller handles different IWF call scenarios: Oracle® Enterprise Session Border Controller uses default mappings defined in the Default Mappings table below. If it cannot find the appropriate mapping, then the Mappings for particular Q.850 cause codes to SIP status codes.Mappings for SIP status codes to Q.850 values.Oracle® Enterprise Session Border Controller receives in RFC 3326 headers are passed to the H.323 part of the call unmodified the H.323 call leg uses this cause code for releasing the call.įor interworking calls between SIP and H.323, you can configure: In addition, the Q.850 cause codes that the In calls that require IWF, the Q.850 cause generated in the SIP response are the same as the cause received in the following H.225 messages: Disconnect, Progress, Release, Release Complete, Resume Reject, Status, and Suspend Reject. Oracle® Enterprise Session Border Controller is not required to insert one. Oracle® Enterprise Session Border Controller receives an error message without the Reason header, then the Oracle® Enterprise Session Border Controller can receive and pass SIP error messages (4xx, 5xx, and 6xx) that contain the SIP reason header with a Q.850 cause code and reason (as specified in RFC 3326). Oracle® Enterprise Session Border Controller can generate RFC 3326 headers, the default behavior for this feature is disabled. ![]() Oracle® Enterprise Session Border Controller sends SIP responses to the softswitch that contain the received Q.850 cause code and the reason. ![]() Locally generated SIP response with RFC 3326 reason header and cause.Mapping SIP response messages and RFC 3326 reason header and cause.Mapping H.323 Q.850 cause values to SIP responses with reason header and cause value.Oracle® Enterprise Session Border Controller to support sending and receiving RFC 3326 in SIP messages for: This reason header includes cause values that are defined as either a SIP response code or ITU-T Q.850 cause values. RFC 3326 defines a header that might be included in any in-dialogue request. Oracle® Enterprise Session Border Controller’s ability to map Q.850 cause values with SIP responses for calls that require IWF.
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