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Chapter 28 Troubleshooting
• WEP: Wired Equivalent Privacy (WEP) encryption scrambles the data transmitted between the
wireless stations and the access points to keep network communications private.
28.6 Phone Calls and VoIP
The telephone port won't work or the telephone lacks a dial tone.
Check the telephone connections and telephone wire.
1
I can access the Internet, but cannot make VoIP calls.
The PHONE light should come on. Make sure that your telephone is connected to the PHONE port.
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
3
using speed dial, there may be something wrong with the SIP server, contact your VoIP service
provider.
28.7 USB Device Connection
The LTE Device fails to detect my USB device.
Disconnect the USB device.
1
Reboot the LTE Device.
2
If you are connecting a USB hard drive that comes with an external power supply, make sure it is
3
connected to an appropriate power source that is on.
Re-connect your USB device to the LTE Device.
4
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LTE-5121 User's Guide
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