and $cdr->max_callers <= $self->option_cacheable('skip_max_callers');
return "calldate < ". $self->option_cacheable('skip_old')
- if $self->option_cacheable('skip_old')
+ if length($self->option_cacheable('skip_old'))
&& $cdr->calldate_unix < str2time($self->option_cacheable('skip_old'));
#all right then, rate it