
User Guide for the SIP-T27P IP Phone 
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Customizing Your Phone.............................................................27 
General Settings .................................................................................................................................................... 27 
Power Saving...................................................................................................................................................... 27 
Backlight............................................................................................................................................................... 30 
Contrast ................................................................................................................................................................ 31 
Language.............................................................................................................................................................. 31 
Time & Date........................................................................................................................................................ 32 
Administrator Password................................................................................................................................. 34 
Key As Send ........................................................................................................................................................ 35 
Phone Lock.......................................................................................................................................................... 35 
Audio Settings........................................................................................................................................................ 38 
Volume.................................................................................................................................................................. 38 
Ring Tones........................................................................................................................................................... 40 
Key Tone............................................................................................................................................................... 42 
Contact Management ......................................................................................................................................... 42 
Directory............................................................................................................................................................... 42 
Local Directory ................................................................................................................................................... 44 
Blacklist ................................................................................................................................................................. 53 
Remote Phone Book........................................................................................................................................ 55 
Call History Management.................................................................................................................................. 57 
Viewing History Records................................................................................................................................ 57 
Placing a Call from History Records .......................................................................................................... 58 
Adding a Contact to the Local Directory/Blacklist............................................................................... 58 
Deleting History Records............................................................................................................................... 58 
Disabling History Record............................................................................................................................... 60 
Search Source List in Dialing ............................................................................................................................ 60 
System Customizations....................................................................................................................................... 62 
Logo Customization......................................................................................................................................... 62 
Headset Use........................................................................................................................................................ 63 
DSS Keys............................................................................................................................................................... 65 
Account Management .................................................................................................................................... 77 
Dial Plan................................................................................................................................................................ 79 
Emergency Number......................................................................................................................................... 85 
Live Dialpad......................................................................................................................................................... 86 
Hotline................................................................................................................................................................... 86 
Basic Call Features........................................................................89 
Placing Calls ............................................................................................................................................................ 90 
Answering Calls...................................................................................................................................................... 92 
Auto Answer ....................................................................................................................................................... 93 
Ending Calls............................................................................................................................................................. 94 
Redialing Numbers............................................................................................................................................... 94