6.3.2 PSTNCallControl::Null State

The application waits for a GCEV_DETECTED, GCEV_OFFERED, or USR_MAKECALL event.

In the case of a GCEV_DETECTED event, the state transitions to the Detected state.

In the case of a GCEV_OFFERED event, the application calls getCallAddrInfo( ) to get and set DNIS and ANI and then calls acceptCall( ). The state transitions to the Accepting state.

In the case of a USR_MAKECALL event, the application calls makeCall( ) and the state transitions to makingCall.

If the application receives a GCEV_DISCONNECTED event, it calls getResultValue( ) to get the disconnect reason and then calls dropCall( ). If the dropCall( ) function fails, the application calls resetLineDevice( ) to reset the line device and the state transitions to Init. Otherwise, the state transitions to Dropping.

If the application receives a USR_DISCONNECT event it retrieves the DropReason from the EventData and calls dropCall( ). If the dropCall( ) function fails, the application calls resetLineDevice( ) to reset the line device and the state transitions to Init. Otherwise, the state transitions to Dropping.

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