Call Classification Analysis (CCA) is typically started as needed when using the irCall(3IRAPI) function. An IRAPI application must not explicitly start CCA when initiating a call via irCall since that could interfere with the automatic use of CCA.

There are some situations, such as dialing after flash transfers, where application control of CCA is required. The irStartCCA(3IRAPI), irStopCCA(3IRAPI) and irCheckCCA(3IRAPI) functions support flexible use of CCA in those situations.

By default, irDial behaves as if simple CCA has been selected.

The following parameters affect CCA:

• IRP_OUTCALL_CCALEVEL – Determines the CCA level
• IRP_OUTCALL_MAXRINGS – Determines the maximum number of rings to be generated before returning a "no answer'' disposition.

The IRE_CALL_PROG event reports the tones and other events detected after the irDial function has been called. The application must determine whether the IRE_DIAL_DONE event or the IRE_CALL_PROG event represents the final event (whether successful or not) resulting from the flash and dial operation.

© 2006 Avaya Inc. All Rights Reserved.