ReleaseISCServiceInstance

Releases the service handle that was created using RequestService, and free resources. No subsequent calls to the driver handle are made. The driver must in turn make no further calls to the client handle.

Note: ReleaseISCServiceInstance is the last communication between the Communications Session Manager and the communications driver. After calling this function, Communications Session Manager no longer calls the driver, and the driver must no longer call back to the Siebel application, because the communications client and the client handle no longer exist.
ISCAPI ISC_RESULT   ReleaseISCServiceInstance
   /* in  */(ISC_SERVICE_HANDLE    handle);