Timer Expiration
If the Oracle® Enterprise Session Border Controller fails to receive a session refresh request before the session expiration, the session will be terminated before the full session time. This is computed according to:
![](img/GUID-FF687E81-8D4B-4179-91AE-6862B8EC4B9C-default.png)
After the real expiration time elapses, the Oracle® Enterprise Session Border Controller sends a BYE request in both directions to terminate the session.
![](img/GUID-AC4BCD7E-3ACC-4AF0-B21A-EBCD02650659-default.gif)