User's Manual

Grandstream Networks, Inc. GXV3140H USER MANUAL Page 21 of 146
FIRMWARE VERSION 1.0.7.2 Updated : 11/2010
Camera Loopback button. This button Enables or Disables the camera display on
the local LCD.
Call Transfer: Allows the user to transfer a call to another extension or number.
Place the call on hold.
Conference button - connects the caller/callee to the conference.
Sends a new number or redials the last number dialed.
Turns the Speaker ON or OFF.
Navigation Buttons: These arrows keys serve as up/down/left/right button when
used in the GXV3140H’s menus. The middle button is used as the submit/select
button.
When the phone is idle, the up and down arrow can be used to increase/decrease
the volume.
When the phone is in loopback mode or during a video call, use the up/down
arrow to adjust exposure settings and use the left/right arrow to zoom in and out.