There are two access rule tables, Friend and Anonymous. Every "friend" or "anonymous" connection is tested against these rules. If a rule is not satisfied, the connection is broken and the call will NOT proceed. The easiest way to manage this is to have no rules at all. In this case all calls will be denied since no access rule can be found.
It is interesting to consider the following point. Since every rule has a start time and a stop time, what happens when a user connects near a boundary of a rule and that rule "touches" another rule? For example you have a rule for Monday 6PM to 11:59PM which allows 10 minutes of access and a rule from Tuesday midnight to Tuesday 6AM which allows 30 minutes of access and a person connects at 5 minutes to midnight?
Well the rule they are connected on says the are allowed at most 10 minutes but this rule expires in 5 minutes. Since the next rule touches the previous rule in the time coordinate and that rule would have extended their call had they just waited 5 minutes, the call is extended to 10 minutes. It will NOT roll over to next rule's maximum time but it will "borrow" from it.
Every rule needs an existing dialing rule table and time limits. We provide what we think is a sensible default dialing rule table but it is up to you to examine it and satisfy yourself if they are appropriate. If you delete a rule table that is bound to an access rule you disable that access rule (and by proxy, all other access rules associated with it).
You can have as many dialing rule tables as you want.
The dialing rule table editor lets you change the rules. You know which rule table you are editing by looking at the title bar. We have included a default rule table that works for most phone companies but you must examine it for yourself. What works in Berlin may not be appropriate in Beijing.
Also, these rules are read from top down. If you wanted to allow certain long distance (numbers beginning with 1) but block all others you would do the following.
0 begins with denied
11 begins with denied
1(area code of interest) begins with ALLOWED
1 begins with denied
etc
In this case operator assisted calls and overseas calls are blocked, any call to the area code of interest is allowed and all other long distance calls are denied. Ending the rule table like this effectively adds a catch-all.
A rule has two (2) parts, a telephone dial character(s) and an allowed or denied flag.
