The system provides a number of methods to restrict which external numbers a user can or cannot dial.

Allowed Number Lists / Disallowed Number Lists
These lists are used in define numbers that can or cannot be dialed. Users are then associated with the different lists.

Allowed Numbers

Each allowed list contains external telephone numbers that members of the list are allowed to dial. The allowed lists to which a user is assigned override any disallowed lists to which they are also assigned. The numbers in the user's assigned allowed lists also override the Calls Barred and Outgoing Call Restrictions settings that may be applied to a user.

There are eight lists, each containing up to 10 numbers. Each number can use the telephone dialing digits 0 to 9, *, # and can be up to 28 digits long. You can also use the ? character as a single digit wildcard.

Disallowed Numbers

Each disallowed list contains external telephone numbers that users who are assigned to the list cannot dial. There are eight lists, each containing up to 10 numbers. Each number can use the telephone dialing digits 0 to 9, *, # and can be up to 28 digits long. You can also use the ? character as a single digit wildcard.

Numbers in the disallowed lists of which a user is a member are overridden if they also appear in the allowed numbers lists, emergency number list of which the user is a member and also by marked system speed dials.

Emergency Numbers

You can enter 10 emergency phone numbers into this list. This list is applied to all users and overrides any dialing restrictions that may also be applied to the users. Use of numbers in the list can be viewed using a 911-View/E-View button.

Account Codes
Each user can be configured to need to enter a valid account code whenever they make an external call.

Outgoing Call Restrictions
For each user, the type of external calls that the user is able to make can be configured.

Marked Speed Dials
When a user uses a stored system speed dial number, the actual number dialed is subject to all the call barring methods as if the user had dialed the number directly. However system speed dials set as 'marked speed dials' override any call restrictions.  

Night Service
When the system is set to night service, any users in the Night Service Group need to enter the system password when making an external call.