No Answer Forwarding&Forwarding Number; Time Out; Do Not Disturb - Denwa Communications DW-820 User Manual

4.7.3 No Answer Forwarding & Forwarding Number
The incoming calls will be forwarded to the specified number when the ring tone is
time out without answer.
Configuration on the phone:
1. Phone Settings->Call Settings->Call Forwarding->No Answer Forwarding
2. Select the desired account.
3. Enable No Answer Forwarding.
4.
Input the number you want to forward.

4.7.4 Time out

Setup the no answer forwarding time. When the call is beyond the time (the default
is 30 seconds) without answer, it will transfer to the target number.

4.7.5 Do Not Disturb

DND function is to prevent foreign phone from disturbing, if open DND, external
phone call is unable to call in. Turned off by default.
Configuration on the phone:
1. Phone Settings-> Call Settings-> DND
2. Select the desired account.
3. Enable Do not Disturb.