how to upgrade firmware on 7921g wireless phone from 1.0.2 to 1.0.4 via USB

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drolemc Wed, 12/19/2007 - 13:08
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You can use the Phone Upgrade area on the web page to upgrade firmware files on the phones by using the USB connection or by using the WLAN. To upgrade the phone software, enter the phone software TAR (firmware file name) or use the Browse button to locate the firmware file on the network.

To display the Phone Upgrade area, access the web page for the phone as described in the Accessing the Configuration Web Page for a Phone section available at

migilles Wed, 12/19/2007 - 23:46
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This means the 7921G has registered previously to the Cisco CallManager and web access is set to read only after registration. So can set the web access to full then will get all options in the web. But for security reasons is advised to set to read only or ensure the defaut web password is changed.


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