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1.2 Making Calls
User Manual 49
• WARNING
There is a risk that fraudulent telephone calls will be made using the Outside-to-
Outside 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 your passwords (verified code PIN/extension PIN) secret.
c) Selecting complex, random PINs that cannot be easily guessed.
d) Changing PINs regularly.
• Time limit
Both parties will hear an alarm tone fifteen seconds before the specified time limit. To extend,
press any dial button except .
• If Built-in Automated Attendant service is set, you can access the desired extension
simply by pressing a single digit (0-9) from the options given the prerecorded message.