The Cisco CTI Manager contains the CTI components that interact with applications. This service allows applications to monitor or control phones and virtual devices to perform call control functionality.
Cisco Unified Communications Manager clusters only: With CTI Manager, applications can access resources and functionality of all Cisco Unified Communications Managers in the cluster and have improved failover capability. Although one or more CTI Managers can be active in a cluster, only one CTI Manager can exist on an individual server. An application (JTAPI/TAPI) can have simultaneous connections to multiple CTI Managers; however, an application can use only one connection at a time to open a device with media termination.