1.2 Making Calls

WARNING

There is a risk that fraudulent telephone calls will be made using the Outside-to- Outside (CO-to-CO) Line Call feature of DISA.

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 outside-to-outside (CO-to-CO) line calls may be limited through system programming.

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 single-digit number (DISA AA number) while or after hearing a DISA OGM or after a short beep. AA menus can be up to 3 levels deep.

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 Programming—DISA Security Code [512]

User Manual

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Philips KX-TEA308 user manual CO-to-CO Line Call Duration, Customising Your System