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

    DTE commands enable you to configure a SET HOST/DTE session while
    it is in progress.

    Enter EXIT at the DTEPAD prompt when you are ready to return to
    emulation mode.

    The HELP command enables you to obtain information about available
    commands.  To see information about one of the topics, type the topic
    name after the prompt.