User's Guide
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HT81x User Guide 
Table of Tables 
Table 1: HT81X Features at a Glance ......................................................................................................... 12 
Table 2: HT81X Technical Specifications .................................................................................................... 13 
Table 3: Definition of the HT81X Connectors .............................................................................................. 16 
Table 4: HT81X LEDs Pattern Description .................................................................................................. 19 
Table 5: Voice Prompt Menu ....................................................................................................................... 20 
Table 6: HT81X Call Features ..................................................................................................................... 29 
Table 7: MAC Address Key Mapping .......................................................................................................... 40 
Table of Figures 
Figure 1: HT812 Package Contents ............................................................................................................ 15 
Figure 2: HT814 Package Contents ............................................................................................................ 15 
Figure 3: HT818 Package Contents ............................................................................................................ 16 
Figure 4: HT812 Back Panel ....................................................................................................................... 16 
Figure 5: HT814 Back Panel ....................................................................................................................... 16 
Figure 6: HT818 Back Panel ....................................................................................................................... 16 
Figure 7: Connecting the HT81X ................................................................................................................ 18 
Figure 8: HT81X LEDs Pattern ................................................................................................................... 18 
Figure 9: Admin Level Password ................................................................................................................ 24 
Figure 10: User Level Password ................................................................................................................. 24 
Figure 11: Web HTTP Port .......................................................................................................................... 25 
Figure 12: SIP Profiles Settings .................................................................................................................. 26 
Figure 13: SIP Accounts settings ................................................................................................................ 27 
Figure 14: Accounts Status ......................................................................................................................... 27 
Figure 15: Firmware Upgrade Page ............................................................................................................ 38 










