User's Guide
P a g e | 3 
HT81x User Guide 
Table of Content 
DOCUMENT PURPOSE ................................................................................................. 7 
CHANGE LOG ................................................................................................................ 8 
Firmware Version 1.0.0.5 (Only for HT818) ........................................................................................... 8 
Firmware Version 1.0.5.5 ....................................................................................................................... 8 
Firmware Version 1.0.3.7 ....................................................................................................................... 8 
Firmware Version 1.0.3.2 ....................................................................................................................... 8 
Firmware Version 1.0.2.7 ....................................................................................................................... 8 
Firmware Version 1.0.2.3 ....................................................................................................................... 8 
Firmware Version 1.0.2.1 ....................................................................................................................... 8 
GUI INTERFACE EXAMPLES ...................................................................................... 10 
WELCOME ................................................................................................................... 11 
PRODUCT OVERVIEW ................................................................................................ 12 
Feature Highlights ................................................................................................................................ 12 
HT81X Technical Specifications .......................................................................................................... 13 
GETTING STARTED ..................................................................................................... 15 
Equipment Packaging .......................................................................................................................... 15 
HT81X Ports Description ..................................................................................................................... 16 
Connecting HT81X ............................................................................................................................... 17 
Scenario 1: Connecting the HT81X using WAN Port ................................................................... 17 
Scenario 2: Connecting the HT81X using LAN Port ..................................................................... 17 
HT81X LEDs Pattern ........................................................................................................................... 18 
CONFIGURATION GUIDE ............................................................................................ 20 
Obtain HT81X IP Address via Connected Analogue phone ................................................................ 20 
Understanding HT81X Interactive Voice Prompt Response Menu ...................................................... 20 
Configuration via Web Browser ........................................................................................................... 22 










