1.3 Telephone Features and OperationOperating Manual 531.3.19 DND (Do Not Disturb)– DND (Do Not Disturb)– DND Override– Switching FWD/DND Status Using Fixed FWD/DND ButtonDND (Do Not Disturb)You can set this feature to prevent incoming calls from ringing at your extension. This can be useful, forexample, when you are in a meeting or busy.To set/cancel• WARNINGThere is a risk that fraudulent telephone calls will be made using the CO-to-CO LineCall 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 limitBoth 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 extensionsimply by pressing a single digit (0–9) from the options given the prerecorded message.• When using a proprietary telephone, you can set or cancel DND by pressing the FWD/DNDbutton (fixed button) instead of " 710".On-hook.Enter1 to setor0 to cancel.PT/SLT/PSSetCancel10Off-hook. Enter71.120 Both CallsIntercom CallsOutside CallsOR17Enter0 to2 as you desire.C.ToneOROROR
