Library /sys$common/syshlp/nclhelp.hlb set, x25 relay (Alpha), pvc, remote_dte_class  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: No DTE class  Value: Simplename

    DTE class to be used when setting up the remote end of the
    connection. It is only specified if the relayed PVC does not
    reside on the local system.