User's Manual

Grandstream Networks, Inc. GXV3140 USER MANUAL Page 17 of 83
FIRMWARE VERSION 1.0.1.18 Updated : 09/2009
Retrieve video/voicemail message or other messages.
Phonebook
Standard telephone keypad. The # key can act as a send key.
In the input mode, if an English alphabet needs to be entered, press the
corresponding numerical key multiple times.
For example, if the user wishes to enter B, press 2 three times; if the user wishes
to enter Y, press 9 four times.
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.