8.5 Undialable

     When FD reaches the resend (session failure, transmission
     failure, etc.) retry limit for a system during an event. That
     system is added to the undialable table with a "grade" of one.
     When the "grade" reaches three, the system is considered
     undialable and FD will never call that system again (until you
     manually "upgrade" it).

     The undialable manager is accessed by pressing <Alt-V> from FD's
     main menu and allows you to "upgrade" a system's status, add a
     system manually to the undialable list, and remove one or more
     undialable systems.

     The undialable system information is kept in NODIAL.FD in
     FrontDoor's SYSTEM directory.