Media Release for H.323 SS-FS Calls for IWF

When the Oracle® Enterprise Session Border Controller routes a slow-start to fast-start call, it is possible for the same fast-start call to be routed back through the Oracle® Enterprise Session Border Controller making for a hairpin flow. If it does becomes a hairpin flow, then the Oracle® Enterprise Session Border Controller routes it to its destination as a fast-start to fast-start call. This can result in one-way media if:

• The destination of the hairpin call is in the same realm as the originating slow-start to fast-start call
• The realm reference in the first bullet item is configured to disable in-realm media management
• The called endpoint accepts the proposed fast-start logical channels

The enhancements to the Oracle® Enterprise Session Border Controller ’s behavior described in this section show how the Oracle® Enterprise Session Border Controller follows additional procedures when setting up a hairpin flow to avoid one-way media when media release occurs.