Grandstream Networks GXV3140 Application Manual page 14

As shown in the figure above, area A shows the remote video and area B shows the local video.
When the system boots up for the first time, the phone will establish a video call with the server preset
extension 0. Users can experience a playback of video on the phone.
To see a short video on all the full functionalities of the GXV3140, press the "Demo" softkey on the phone
on the desktop. This would open the media player and play the video. The Demo key will show when the
phone finishes downloading the clip from the server.
Grandstream Networks, Inc. GXV3140 USER MANUAL Page 14 of 117
FIRMWARE VERSION 1.0.3.10 Updated : 12/2009