iCause 524 src/isdn/Q931api.c L3INT Q931Disconnect(Q931_TrunkInfo_t *pTrunk, L3INT iTo, L3INT iCRV, L3INT iCause) iCause 530 src/isdn/Q931api.c (void)iCause; iCause 1138 src/isdn/include/Q931.h L3INT Q931Disconnect(Q931_TrunkInfo_t *pTrunk, L3INT iTo, L3INT iCRV, L3INT iCause);