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Using your web browser navigate http://dphone.dl.digium.com/ and choose the firmware version to be installed. If you don't specify a sub directory the phone will upgrade to the latest version available.
Once you located the firmware, on your phone, press the Settings softkey then choose Fetch Configuration file from URL (option 3).
Leave the protocol field at the default setting HTTP.
Move the cursor to the Server field by pressing the down arrow key.
The server field will display multiple boxes, change this to accept a hostname by pressing the second home key from the left [IP]/Host. Now enter the hostname: dphone.dl.digium.com/[x.x.x.x]
Move to the port field. This should be set to 80.
The path can be left at / (the root directory). If left at root, it will default to 000000000000.cfg which will download the latest firmware.
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