User's Manual
Table Of Contents
- GXP16xx User- DOCUMENT PURPOSE
- GNU GPL INFORMATION
- WELCOME
- PRODUCT OVERVIEW
- INSTALLATION
- GETTING TO KNOW GXP1610/GXP1620/GXP1625
- CONNECTING TO DEVICES
- RESTORE FACTORY DEFAULT SETTINGS
- EXPERIENCING THE GXP1610/GXP1620/GXP1625
 
- FCC Statement 15B
Firmware Version 1.0.0.11 
GXP1610/GXP1620/GXP1625 User 
Guide 
Page 1 of 31 
GXP1610/GXP1620/GXP1625 User Guide 
Index 
DOCUMENT PURPOSE ............................................................................. 5 
GNU GPL INFORMATION .......................................................................... 6 
WELCOME ................................................................................................. 7 
PRODUCT OVERVIEW .............................................................................. 9 
FEATURE HIGHTLIGHTS ..................................................................................................................... 9 
GXP1610/GXP1620/GXP1625 TECHNICAL SPECIFICATIONS .......................................................... 9 
INSTALLATION ........................................................................................... 9 
EQUIPMENT PACKAGING ................................................................................................................. 12 
CONNECTING YOUR PHONE ........................................................................................................... 12 
SAFETY COMPLIANCES .................................................................................................................... 13 
WARRANTY ......................................................................................................................................... 13 
GETTING TO KNOW GXP1610/GXP1620/GXP1625 ............................... 13 
IDLE SCREEN ..................................................................................................................................... 14 
USING THE KEYPAD .......................................................................................................................... 16 
MAKING PHONE CALLS..................................................................................................................... 18 
HANDSET, SPEAKER AND HEADSET MODE ........................................................................... 18 
SIP ACCOUNTS AND LINES ....................................................................................................... 18 
COMPLETING CALLS.................................................................................................................. 18 
MAKING CALLS USING IP ADDRESSES ................................................................................... 20 
ANSWERING PHONE CALLS ............................................................................................................ 22 
RECEIVING CALLS...................................................................................................................... 22 
DO NOT DISTURB ....................................................................................................................... 22 
DURING A PHONE CALL .................................................................................................................... 22 
CALL RECORDING ...................................................................................................................... 22 
CALL WAITING/CALL HOLD ....................................................................................................... 23 
MUTE ............................................................................................................................................ 23 
CALL TRANSFER ........................................................................................................................ 23 
3-WAY CONFERENCING ............................................................................................................ 24 
VOICE MESSAGES (MESSAGE WAITING INDICATOR) ........................................................... 26 
VOICEMAIL .................................................................................................................................. 26 
SHARED CALL APPEARANCE (SCA) ........................................................................................ 26 










