Grandstream Networks GXP16 Series User Manual page 21

Do Not Disturb
Do Not Disturb can be enabled/disabled from phone's LCD by following the steps below:
1. Press the Menu button and select "Preference" using navigation keys.
2. Press Menu button again to get into Preference options.
3. Select "Do Not Disturb" and press Menu button.
4. Use arrow keys to select and press Menu button to enable or disable "Do Not Disturb" feature.
When Do Not Disturb feature is turned on, the DND icon will appear on the right side of the LCD. The incoming call will not be
accepted, or the call will directly go into voicemail.
During a Phone Call
Call Recording
During an active call, users could record the conversation to the UCM6xxx Series server and download the record to PC and
listen to it with the help of the server administrator. Please contact server administrator to ensure the PBX feature codes for
Audio Mix Record is enabled on UCM before using call recording feature.
In the process of establishing the call, when get through, press the RECORD key
one more time to stop recording.
Note: Recording feature is available when using the Grandstream UCM series IP PBX appliance, or the PBX which supports this
feature, Record On/Off DTMF code can be configured from the phone's web UI �� Account��Call Settings (for more details,
refer to GXP16xx Administration Guide
administration-guide/). The record file will be saved automatically to UCM or the supported PBX. Please contact the UCM
server administrator, or the supported PBX administrator to download the file from the server.
Call Waiting/Call Hold
Hold. Place a call on hold by pressing the HOLD button. The active LINE key will blink in green.
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.
Mute
During an active call, press the MUTE button to mute/unmute the microphone. The LCD will show the Mute icon on the top of
screen when the call is muted.
Group Listening with Speaker
If the option "Group Listening with Speaker" is enabled on the web UI (refer to the administration guide), the phone will
display a softkey during the call to enable speaker listening along with handset or headset.
Call Transfer
GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 supports Blind Transfer, Attended Transfer and Auto-Attended
Transfer.
Blind Transfer.
1. During the first active call, press TRANSFER and dial the number to transfer to.
https://documentation.grandstream.com/knowledge-base/gxp16xx-series-
to start recording. Press