Overlapping H.323 Session Agent IP Address and Port

You can now configure H.323 session agents to use overlapping IP addresses.

H.323 session agents continue are identified by their hostname when used in referencing configuration parameters—such as local policy next hops and session agent group destinations. This is why the hostname must be unique. However, when the Oracle® Enterprise Session Border Controller selects a session agent to use, it chooses the appropriate realm and H.323 stack based on the hostname. This is the case even if there are other session agents with the same IP address and port. Likewise, incoming calls are matched to the session agent based on the incoming realm.

There are no specific parameters to configure in order to enable this feature. For it to work properly, however, each H.323 session agent must be configured with a unique hostname (still the primary index). Otherwise, session agents with non-unique hostnames will overwrite one another.

To create overlapping H.323 session agents, you give each of them a unique hostname, which only serves to identify each individually. The Oracle® Enterprise Session Border Controller subsequently uses this label as the next hop destination in relevant local policy route entries.