CAUTION
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 (verification 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.
User Manual 51
1.2.8 To Access Another Party Directly from Outside (Direct Inward System Access [DISA])
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