/* init trace with given values */
start_trace(mISDNport?mISDNport->portnum:0,
(mISDNport)?((mISDNport->ifport)?mISDNport->ifport->interface:NULL):NULL,
/* init trace with given values */
start_trace(mISDNport?mISDNport->portnum:0,
(mISDNport)?((mISDNport->ifport)?mISDNport->ifport->interface:NULL):NULL,