There is control over what calls can be made based on the cost per minute of the call. This can be set for national and international calls separately.

National outgoing calls can have a price limit (default = 20p/min)
International outgoing calls can have a price limit (default = 2p/min)
International calls can be disabled (setting price limit to 'Free')
National calls can be disabled (setting price limit to 'Free')
Users can only reduce the limits, Sales staff can increase them

Call cost settings

Accessing This Feature

Access is via the Control Pages as follows:

Log in to the Control Pages with your xxx@a login
Click on the Number you want to configure
Click on the 'Outgoing' tab
Change the settings in the 'Access' are.
Note: Customers can reduce the limits, but contact A&A to increase.

Outbound call barring

If you wish to bar all (or most) outgoing calls, this is best achieved with a dial plan on your local equipment. Allowing free calls to be made permits users to dial 0808 access numbers for indirect access operators (18185, 1899, etc.)

It's unwise to bar 999 calls, or the *1xx special codes used by AAISP.