FTDM_CAUSE_USER_BUSY  268 src/ftmod/ftmod_r2/ftmod_r2.c 		return FTDM_CAUSE_USER_BUSY;
FTDM_CAUSE_USER_BUSY  308 src/ftmod/ftmod_r2/ftmod_r2.c 	case FTDM_CAUSE_USER_BUSY: