phone_setting.idle_dsskey_and_title.transparency = 80% 
Note: It is also applicable when the DSS key list is unfolded. It is only applicable to SIP-
T54S/T52S/T48G/T48S IP phones. 
Web User Interface: 
Settings->Preference->Transparency 
Phone User Interface: 
Menu->Basic->Display->Transparency 
To change the transparency via web user interface (take SIP-T48G IP phones for 
example): 
1.  Click on Settings->Preference. 
2.  Select the desired value from the pull-down list of Transparency. 
 
3.  Click Confirm to accept the change. 
To change the transparency via phone user interface: 
1.  Tap            ->Basic->Display->Transparency. 
2.  Tap the gray box of the Transparency field, and then select the desired value from the 
pull-down list. 
3.  Tap the Save soft key to accept the change. 
Screen Saver 
The screen saver will automatically start when the IP phone is idle for a certain amount of time 
if you have configured the screensaver wait time. You can stop the screen saver and return to 
the idle screen at any time by pressing a key on the phone or tapping the touch screen (touch 
screen is only applicable to SIP-T48G/S IP phones). The screen saver is only applicable to SIP-
T54S, SIP-T52S, SIP-T48G/S, SIP-T46G/S and SIP-T29G IP phones. 
Users can select to display the built-in screen saver or custom screen saver. To set the custom 
screen saver for the IP phone, you need to upload the custom screen saver in advance. If 
multiple pictures are uploaded, all pictures are displayed like a slide show when screen saver 
starts.