Do Not Disturb; Call Waiting/Call Hold - Grandstream Networks GXP21 Series User Manual

Do Not Disturb

Do Not Disturb can be enabled/disabled from phone's LCD by following the steps below:
Press the Menu button and select "Preference" using navigation keys;
Press Menu button again to get into Preference options;
When "Do Not Disturb" is highlighted, press Left/Right key to disable/enable DND;
Press "Save" softkey to save the change
Users could also enabled/disable DND quickly by pressing the Mute button, note also that mute button function can be set
also to idle Mute, or be disabled under the web GUI option Settings �� Call features �� Mute Key Function While Idle.
If the contact number belongs to Blacklist group, the call from this number will be blocked. If the contact number belongs to
Whitelist group, when the phone is on DND mode, the call from whitelist number will be allowed.
This can be done from the web GUI or under "Phonebook > Contacts" by adding a user into either the "Blacklist" or "whitelist"
as shown below.
Or users can add a contact to "Blacklist" or "Whitelist" from the phone LCD under "Menu > Contact > Local Phonebook" as
shown below.

Call Waiting/Call Hold

Call Waiting: This feature allows users to receive calls while they are already engaged on an ongoing conversation, in
such a case the phone will start ringing OR a call waiting tone will be played if enabled from the web GUI under "Call
Features" menu. After this the phone will pop up the waiting call and gives the user the choice to either accept or refuse
the call, it can be configured from the web GUI �� Account X �� Call Settings �� Call waiting or using the feature codes as
mentioned on Call Features table.
Hold. Place a call on hold by pressing the HOLD button. The active LINE key will blink in green and if configured under
web GUI "Account X��
that he has a call on hold.
Resume. Resume call by pressing the blinking LINE key.
Multiple calls. Automatically place active call on hold or switch between calls by pressing the LINE key. Call waiting tone
(stutter tone) will be audible on new incoming call during the active call.
Figure 39: Group listening
Figure 40: Black/White List
Figure 41: Black/White List
Call Settings �� On Hold Reminder Tone", then a reminder tone will be played to notify the user