The GXP2020 supports traditional and advanced telephony features including caller ID, caller ID w/name,
call forward/transfer/park/hold as well as intercom/paging and BLF.
Table 8: GXP2020 Call Features
Key Call Features
*30 Block Caller ID (for all subsequent calls)
*31 Send Caller ID (for all subsequent calls)
*67 Block Caller ID (per call)
*82 Send Caller ID (per call)
*70 Disable Call Waiting (per Call)
*71 Enable Call Waiting (per Call)
*72 Unconditional Call Forward
Dial “*72” for a dial tone. Dial the forwarding number followed by “#”. Wait for dial
tone. LCD will display “Call FWD Activated”.
*73 Cancel Unconditional Call Forward: dial “*73” and get the dial tone, then hang up.
LCD will display “Call FWD Activated”.
*90 Busy Call Forward
Dial “*90” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial
tone. Hang up.
*91 Cancel Busy Call Forward: dial “*91”. Wait for dial tone. Hang up.
*92 Delayed Call Forward
Dial “*92” for a dial tone. Dial the forwarding number followed by “#”. Wait for a dial
tone. Hang up. LCD will display “Call FWD Activated”.
*93 Cancel Delayed Call Forward
Dial “*93” for a dial tone, then hang up.
CUSTOMIZED LCD SCREEN & XML
With its graphical LCD screen, soft-keys and XML-support, the GXP2020 is a highly customizable phone. XML
is used to communicate between web-servers and the GXP2020 to dynamically update the phone’s phonebook
and idle screen logo and functions.
XML PHONEBOOK
The Grandstream GXP2020 enables you to easily share and maintain a phonebook through the web. The XML-
phonebook must be stored on a web-server. For more information on how to setup the phone to download the
phonebook, please see the Configuration with Web Browser. For more information on how to create a
downloadable XML phonebook, detailed information and configuration guides are located on the website in the
GXP tab @ http://www.grandstream.com/resources.html.
CUSTOMIZABLE IDLE SCREEN AND SOFT-BUTTONS
The GXP2020 also allows you to customize the idle-screen using your own logo on the display of the phone,
instead of the Grandstream logo. In addition to the logo, you can reprogram the soft-keys on the GXP2020 for
your own customized applications. For more information about creating a custom idle screen and/or
reprogramming the soft-keys, please visit our website at: http://www.grandstream.com/resources.html.
Grandstream Networks, Inc. GXP–2020 User Manual Page 18 of 32
Firmware 1.1.4.3 Last Updated: 06/2007