The following example shows three ways to establish a connection
    interactively:

    $ TELNET CENTRAL /TERMINAL_TYPE=IBM-3278-2

    $ TELNET
    TELNET> CONNECT CENTRAL 23 VT200

    $ TN3270 CENTRAL /TERMINAL_TYPE=IBM-3278-3

    You can invoke TELNET or TN3270 and, without connecting to a
    remote host first, enter certain commands that customize the
    sessions and display parameters or status, as shown in the
    following example:

    $ TELNET
    TELNET> SHOW STATUS
    %TELNET-E-NOSESSION, No active session
    Escape character: '^]'
    TELNET>SET DEVICE TERMINAL=VT300
    TELNET> OPEN GALAXY
    %TELNET-I-TRYING, Trying ... 1.20.208.10
    %TELNET-I-SESSION, Session 01, host galaxy, port 23
    -TELNET-I-ESCAPE, Escape character is ^]

    Compaq Tru64 UNIX (galaxy.udb.com) (ttyp5)

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