Library /sys$common/syshlp/phonehelp.hlb EXIT, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  %DIAL PETERS
     .
     .
     .
  %HANGUP
  %DIAL FENTON
     .
     .
     .
  %EXIT
  $

      This example illustrates the difference between the two Phone
      commands HANGUP and EXIT. At the first Phone prompt, Peters is
      dialed. The phone connection to Peters is terminated with the
      HANGUP command, but the user is still in the Phone utility. The
      phone connection to Fenton is terminated with the EXIT command,
      which causes an exit from Phone and a return to DCL command
      level. (Ctrl/Z could have been used instead of the HANGUP.)