    Network Working Group                                         E. Killian
    Request for Comments: 779                                            LLL
                                                                  April 1981

                          TELNET SEND-LOCATION Option

    1.  Command name and code.

       SEND-LOCATION   23

    2.  Command meanings.

       IAC WILL SEND-LOCATION

          The sender REQUESTS or AGREES to use the SEND-LOCATION option to
          send the user's location.

       IAC WON'T SEND-LOCATION

          The sender REFUSES to use the SEND-LOCATION option.

       IAC DO SEND-LOCATION

          The sender REQUESTS that, or AGREES to have, the other side use
          SEND-LOCATION commands send the user's location.

       IAC DON'T SEND-LOCATION

          The sender DEMANDS the other side not use the SEND-LOCATION
          option.

       IAC SB SEND-LOCATION <location> IAC SE

          The sender specifies the user's location to the other side via a
          SEND-LOCATION subnegotiation.  <location> is a sequence of ASCII
          printable characters; it is terminated by the IAC SE.

    3.  Default.

       WON'T SEND-LOCATION

       DON'T SEND-LOCATION

    Killian                                                         [page 1]

    RFC 779                                                       April 1981
    TELNET SEND-LOCATION Option

    4.  Motivation for the option.

       Many network sites now provide a listing of the users currently
       logged in giving their names and locations (see the NAME/FINGER
       protocol, RFC 742).  The location is useful for physically locating
       the user if he or she is nearby, or for calling them (a nearby phone
       number is often included). However, for users logged in via the
       network, the location printed is often no more than the originating
       site name. This TELNET option allows the user's TELNET program to
       send the user's location to the server TELNET so that it can be
       displayed in addition to the site name.  This functionality is
       already present in the SUPDUP protocol (RFC 734).

    5.  Description of the option.

       When the user TELNET program knows the user's location, it should
       offer to transmit this information to the server TELNET by sending
       IAC WILL SEND-LOCATION.  If the server's system is able to make use
       of this information (as can the ITS sites), then the server will
       reply with IAC DO SEND-LOCATION.  The user TELNET is then free to
       send the location in a subnegotiation at any time.

    Killian                                                         [page 2]