up, the conference initiator should set “Transfer on Conference Hangup” to “Yes” in the web configuration interface. This would allow the transfer of call to the remaining party after the initiator exits the conference.
∙If the user is on a video call with the first party, the users may need to turn off the video by pressing “Video off” or pressing “Hold” to activate the screen to select another line.
VOICEMAIL（MESSAGE WAITING INDICATION）
If the blue Message Waiting Indication (MWI) LED icon is flickering in the HOME button, a new voice mail has been received and is waiting to be retrieved. To retrieve the voice mail, activate dial pad first. Then dial
the voicemail box number or press Voice Mail button 
(the button needs to be configured in web configuration interface first). The Interactive Voice Response (IVR) prompts the user through the message
retrieval process. The users may need to navigate to call function option 
and use the DTMF
keypad for voicemail options.
NOTE: Each of the 3 accounts has its own voicemail. The Voicemail access number may be set up in the “Voicemail ID” configuration under “Accounts” in the web configuration interface.
MUTE
1． During a call, the LCD screen will display “Mute”. Select the button to mute the call.
2． After the “Mute” button is pressed, the LCD screen will display “Unmute”. When this button is pressed, the mute feature is cancelled.
KEYPAD INPUT
The
Grandstream Networks, Inc. | GXV3175 USER MANUAL | Page 33 of 119 |
| FIRMWARE VERSION 1.0.0.32 | Updated : 12/2010 |