The signaling type of E&M tie trunk interface. winkStart - the calling side seizes the line by going off-hook on its E lead but waits for a short off-hook 'wink' indication on its M lead from the called side before sending address information as DTMF digits. immediateDial - the calling side seizes the line by going off-hook on its E lead and sends sends address information as DTMF digits. delayDial - the calling side seizes the line by going off-hook on its E lead. After a timing interval, the calling side looks at the supervision from the called side. If the supervision is on-hook, the calling side starts sending information as DTMF digits; otherwise, the calling side waits until the called side goes on-hook and then starts sending address information. The default value of this object is winkStart(1).