![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/0/8a/08a0b951-6976-4849-934e-3a594e2cc797/08a0b951-6976-4849-934e-3a594e2cc797-bg42.png)
CAUTION
There is a risk that fraudulent telephone calls will be made using the 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 (CO Line 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.
1.3.19 DND (Do Not Disturb)
– DND (Do Not Disturb)
– DND Override
– Switching FWD/DND Status Using Fixed FWD/DND Button
DND (Do Not Disturb)
You can set this feature to prevent incoming calls from ringing at your extension. This can be useful, for
example, when you are in a meeting or busy.
To set/cancel
On-hook.
Enter 1 to set
or 0 to cancel.
PT/SLT/PS
Set
Cancel
1
0
OR
Off-hook.
Enter 71.
1
2
0
Both Calls
Intercom Calls
Outside Calls
OR
OR
17
Enter 0 to 2 as you desire.
C.Tone
• When using a proprietary telephone, you can set or cancel DND by pressing the FWD/DND
button (fixed button) instead of " 710"
66 Operating Manual Document Version 2008-10
1.3.19 DND (Do Not Disturb)