How a Client/Server Connection is Managed

The client uses TCP/IP protocols for network connectivity to the Unified CCX server.

TCP/IP transport services are used in a client/server arrangement. The clients are connected to specific addresses and ports on the server with a hostname/port number pair that is the IP address and the TCP port number of the server. See The Unified CCX CTI Server in a High Availability Unified CCX System for how to select an IP address and port number.

Clients attempt to connect to the server until a connection is established. Once a connection between the client and the server has been established, the connection remains in place until a failure occurs or the client closes the connection. If a failure occurs, the client may again attempt to establish a connection to the server until a new connection is established.

Connection failures may be detected by the TCP layer (see Reasons for a Connection to Fail) or by the heartbeat mechanism (see How a Session is Maintained).