User Guide for the SIP-T54S media IP Phone 
viii 
Entering Data and Editing Fields..................................................................................................................... 35 
Customizing Your Phone ............................................................. 39 
General Settings .................................................................................................................................................... 39 
Wallpaper ............................................................................................................................................................. 39 
Transparency ...................................................................................................................................................... 42 
Screen Saver........................................................................................................................................................ 43 
Power Saving ...................................................................................................................................................... 46 
Backlight ............................................................................................................................................................... 49 
Language.............................................................................................................................................................. 50 
Idle Clock Display .............................................................................................................................................. 51 
Time & Date ........................................................................................................................................................ 51 
Administrator Password ................................................................................................................................. 53 
Key As Send ........................................................................................................................................................ 54 
Phone Lock .......................................................................................................................................................... 55 
Audio Settings ........................................................................................................................................................ 58 
Volume .................................................................................................................................................................. 58 
Ring Tones ........................................................................................................................................................... 59 
Key Tone ............................................................................................................................................................... 61 
Contact Management ......................................................................................................................................... 62 
Directory ............................................................................................................................................................... 62 
Local Directory ................................................................................................................................................... 64 
Blacklist ................................................................................................................................................................. 77 
Remote Phone Book ........................................................................................................................................ 79 
Call History Management .................................................................................................................................. 81 
Viewing History Records ................................................................................................................................ 81 
Placing a Call from History Records .......................................................................................................... 82 
Adding a Contact to the Local Directory/Blacklist ............................................................................... 82 
Deleting History Records ............................................................................................................................... 82 
Disabling History Record ............................................................................................................................... 83 
Search Source List in Dialing ............................................................................................................................ 83 
System Customizations....................................................................................................................................... 85 
Headset Use ........................................................................................................................................................ 85 
Bluetooth Headset............................................................................................................................................ 87 
DSS Keys ............................................................................................................................................................... 92 
Account Management .................................................................................................................................. 105 
Dial Plan .............................................................................................................................................................. 108 
Emergency Number ....................................................................................................................................... 114 
Live Dialpad ....................................................................................................................................................... 115 
Hotline ................................................................................................................................................................. 115 
Basic Call Features ...................................................................... 117 
Placing Calls .......................................................................................................................................................... 117