1.4 Rule
A rule determines the behaviour (one or more actions) when a call is received and special conditions as well as all exceptions of these conditions apply. Rules can also be called a filter. A rule has a name and can consist of
one or more situations for the subscriber being called (e.g. according to the calendar),
additional conditions which have to do with the call (e.g. the calling party number),
an exception, and
one sequence of actions, which is carried out when one of the situations and the conditions apply.
apply.
There are user rules and system rules.