It is possible to upgrade the firmware on SPA500 Series phones when they are connected to a UC500..?
We have attempted a manual upgrade via the exe utiltiy. But when the phones re-register they just downgrade to the firmware that is on the UC500 TFTP server.
Are there instructions on how to do this?
Go to Solution.
gives you an example using a 7960 and call manager express, easily adapted for spa50x-30x-7-5-1a (or whichever firmware you wish to use).
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