Sony Ipela PCS-XG80 Operating Instructions Manual page 130

Note
You can also transmit the computer picture to the remote party by pressing the
PRESENTATION button on the Remote Commander instead of performing steps
2 and 3 above.
To change the display pattern of the presentation screen
You can select the display pattern of the presentation screen with "Presentation
Screen" on the Basic Setup page of the Video setup menu.
Full: The computer picture is displayed in full screen mode.
PandP: The computer picture and the selected video picture (camera picture,
etc.) are displayed in PandP mode.
Side by Side: The computer picture and the selected video picture (camera
picture, etc.) are displayed in Side by Side mode.
PandP mode
Computer picture
Side by Side mode
Computer picture
Presentation screen on the remote site
When the remote system supports the presentation mode complying with
H.239, the remote party can watch the selected video and computer pictures
transmitted simultaneously in the desired display pattern selected by the
remote system.
If the remote system does not support the presentation mode complying with
H.239, the pictures are displayed on the remote monitor in the pattern selected
by "Presentation Screen" on the local system.
130
Using the Computer Picture for Presentation
Camera picture, etc.
Camera picture, etc.