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

    Support: All
    Default: 60            Value: 0-65535

    Interval, in seconds, that must elapse between a call failure and
    a recall. This attribute is supported only if the characteristic
    type is set to x25 static outgoing, x25 da, hdlc, or ddcmp.