Library /sys$common/syshlp/nclhelp.hlb set, routing, circuit, reachable_address, modem_addresses  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Support: L1,L2
    Default: { }			Value: Set of modem addresses

    A set of full dial sequence that contains the address (PSTN or
    ISDN) to which a call may be directed in order to reach a
    network number that matches the address prefix of the parent
    reachable address) entity. Associated with each modem address,
    but not visible to Network Management, is a variable last
    failure of type binary absolute time. This is valid only if
    mapping is manual and the parent circuit entity's access time
    is Modem DA.