1.4.2 Call Control Library States

The initial state of all the call control libraries is the Configured state. When a call control library is successfully started, the library will be in the Available state. If the call control library fails to start, the library will be in the Failed state as shown in the diagram below. If the call control library is not started, it will remain in the Configured state.

Figure 2. Call Control Library States

Table 1 describes the different states of a call control library.

Table 1. Call Control Library States

State	Description
Configured	A library that is supported by Global Call is considered a configured library.
Available	A library that has been successfully started is considered to be available for use by a Global Call application.
Failed	A library that has failed to start is considered to be unavailable for use by a Global Call application.

Each configured call control library is assigned an ID number by Global Call. Each library also has a name in an ASCII string format. Library functions perform tasks such as converting a call control library ID to an ASCII name and vice-versa, determining the configured libraries, determining the available libraries, determining the libraries started and the libraries that failed to start, and other library functions.

The following functions are the call control library information functions. All the library functions are synchronous, thus they return without a termination event.

• gc_CCLibIDToName( )
• gc_CCLibNameToID( )
• gc_CCLibStatusEx( )
• gc_GetVer( )

See the Global Call API Library Reference for detailed information about these functions.

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