Topology Considerations for Session Communications
Generally, Siebel Communications Server components for session communications, such as CommSessionMgr, run on the same Siebel Server computers as those running Siebel Application Object Managers. In some cases, however, you must run CommSessionMgr on a different computer than the Siebel Application Object Managers. These options are described in detail in this topic.
CTI middleware generally runs on servers located at each contact center facility.