Htek uc842 User Manual page 6

Table of Content
Troubleshooting .......................................................................................................................... 145
Why is the phone LCD screen blank? ................................................................................... 145
Why does the phone display "Network Unavailable"? ......................................................... 145
Why can't I get a dial tone? .................................................................................................. 145
Where to set the tone? ........................................................................................................... 146
How to download XML Configuration? ............................................................................... 146
How to Import Trusted CA certificate? ................................................................................. 146
How to Import Server CA certificate? .................................................................................. 147
How to use Vlan? .................................................................................................................. 147
How to use LLDP? ................................................................................................................ 148
How to Set LCD and Web GUI： ......................................................................................... 148
How to Upgrade via FTP? .................................................................................................... 148
How to make Ringtone? ........................................................................................................ 148
How to use Open VPN? ........................................................................................................ 148
Provisioning Guide on Free PBX:......................................................................................... 148
Failover Notes ....................................................................................................................... 149
How to Upload Wallpaper? ................................................................................................... 149
How to Use Auto Provision Phonebook? .............................................................................. 149
All Documents ...................................................................................................................... 149
6