Creates an X.25 relay entity which accepts an incoming call from one
    client and redirects it to another client.  For information about
    the X25 Relay entity and its subentities, refer to
    HELP ENTITY X25_RELAY.

    create [node node-id] x25 relay [maximum active connections integer]

    The Maximum Active Connections argument is optional.  It specifies
    the maximum number of active connections supported.