Troubleshooting Solutions
252
Why does the handset prompt the message “Network unavailable”?
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Ensure that the Ethernet cable is plugged into the Internet port on the base station and the Ethernet cable is not
loose.
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Ensure that the switch or hub in your network is operational.
Why does the handset display “No Service”?
The LCD screen prompts “No Service” message when there is no available SIP account on the DECT IP phone.
Do one of the following:
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Ensure that an account is actively registered on the handset at the path
OK
>
Status
>
Line Status
.
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Ensure that the SIP account parameters have been configured correctly.
Upgrade Issue
Why doesn’t the DECT IP phone upgrade firmware successfully?
Do one of the following:
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Ensure that the target firmware version is not the same as the current one.
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Ensure that the target firmware is applicable to the DECT IP phone model.
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Ensure that the current or the target firmware is not protected.
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Ensure that the power is on and the network is available in the process of upgrading.
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Ensure that the web browser is not closed or refreshed when upgrading firmware via the web user interface.
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For handset, ensure the handset battery should not less than 40% and is connected to the base station.
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Страница 260: ...Appendix 257 W80B Menu Structure Overview ...