VMS Help  —  TCPIP Services, TELNET  Starting
    You can start a TELNET or TN3270 session with a remote host (also
    called establishing a connection and opening a connection) in one
    of the following ways:

    o  At the DCL prompt, enter either the TELNET or the TN3270
       command and specify a remote host.

    o  At the DCL prompt, enter either the TELNET or the TN3270
       command with no parameters. At the TELNET or TN3270 prompt
       that appears, enter the CONNECT or open command, and specify a
       remote host.

    o  Invoke and use TELNET or TN3270 from a command procedure.
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