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1.2 Making Calls
•WARNING
There is a risk that fraudulent telephone calls will be made using the
The cost of such calls will be billed to the owner/renter of the PBX.
To protect the PBX from this kind of fraudulent use, we strongly recommend:
a)Enabling DISA security (Trunk Security or All Security).
b)Keeping DISA security codes secret.
c)Selecting complex, random codes that cannot be easily guessed.
d)Changing codes regularly.
•If you dial 4 digits or more when dialling an extension number, the call will be disconnected. When you dial an invalid extension number of 3 digits or less, the call is redirected to the preprogrammed intercept destinations or disconnected, according to system programming.
•CO-to-CO Line Call Duration
The length of
Both the outside caller and the outside destination will hear a warning tone 15 seconds before a specified time limit. When the timer expires, the call is disconnected.
•If the DISA Automated Attendant (AA) service is used, you can access the desired party simply by pressing a preprogrammed
•If you enter an invalid security code 3 times consecutively, the call will be disconnected
automatically. If you enter a DISA security code a second and third time, dialling "" is not necessary.
Customising Your System
•3.3.2 System
User Manual
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