What happens to an incoming call if no applications have the line open with owner privilege? First, TAPI informs all monitoring applications on the line about the call. If no monitoring application switches to owner privilege to answer the call, the service provider eventually drops the call.
The following steps describe what normally happens if a line has only monitoring applications, a call comes in, and no applications answer the call. Assume that the service provider is not configured to answer new calls by itself.
Although the call in this example was never answered, its appearance and disappearance may have been significant to the applications monitoring the line. On a network that offers caller ID, a user may want to screen incoming calls, recording who has called without necessarily answering every call. Monitoring applications can help accomplish this without ever needing to answer a call.