You can access multiple versions of Siebel from a single broker by using different versions of the client libraries.
You can complete this task by using the command line, the IBM® Integration Explorer, or the IBM Integration API (CMP). For more information about using the IBM Integration Explorer, see Using the IBM Integration Explorer to work with configurable services. For more information about using the CMP, see Developing applications that use the IBM Integration API. This topic describes how to connect to different versions of Siebel by using the command line.