Operation Manual

Chapter 25 Troubleshooting
LTE7410 User’s Guide
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2 Turn the LTE Device off and on.
3 If the problem continues, contact the network administrator or vendor, or try one of the advanced
suggestions.
25.5 Phone Calls and VoIP
The telephone port won’t work or the telephone lacks a dial tone.
1 Check the telephone connections and telephone wire.
I can access the Internet, but cannot make VoIP calls.
1 You can also check the VoIP status in the System Info screen.
2 If the VoIP settings are correct, use speed dial to make peer-to-peer calls. If you can make a call
using speed dial, there may be something wrong with the SIP server, contact your VoIP service
provider.
25.6 UPnP
When using UPnP and the LTE Device reboots, my computer cannot detect UPnP and refresh
My Network Places > Local Network.
1 Disconnect the Ethernet cable from the LTE Device’s LAN port or from your computer.
2 Re-connect the Ethernet cable.
The Local Area Connection icon for UPnP disappears in the screen.
Restart your computer.
I cannot open special applications such as white board, file transfer and video when I use the
MSN messenger.