The LGI$ICB_MODALHOURS callback routine checks for restrictions
    on access modes and access hours.

    Format

      LGI$ICB_MODALHOURS

1  –  Returns

    No value. Does not return on failure.

2  –  Arguments

    None.

3  –  Description

    The site uses this callback routine to establish the access
    modes and access hours available to the user. If the user is
    not authorized to access the system from this login class (batch,
    dialup, local, remote, network) at this time (as specified in the
    UAF), the callback routine:

    o  Writes its standard error message to the user terminal, if
       there is a terminal

    o  Does not return control to the caller

4  –  Condition Values Returned

    None.