In any outbound call state, the application may receive NCCEVN_BILLING_INDICATION, indicating that billing information arrived. Depending upon the protocol, this indication may be a billing pulse or some more complex indication such as ISDN or SS7. In some cases, the value field of this event contains the billing units charged. No state transition occurs with this event.
NCCEVN_BILLING_INDICATION is generated only if the NCC_REPORT_BILLING bit is set in the NCC.START.eventmask parameter.