Now, under “Latest”, you’ll see just something like this: Well guess what, you don’t want anything in that section yet. That being said, first step is to navigate to Cisco’s IP Phone 8800 Series downloads in your CCO account.That will ensure you waste even more time on this. If you’re going from the 9.3.3 default build that seems to come on these phones, you’re going to need an intermediate upgrade file due to changes that have occurred.
Step one, no, you can’t simply upgrade to the latest firmware, that would be too easy.If you’re not a big company, you probably won’t need to modify these steps, but if you need to test the new firmware on one phone before risking altering your default firmware load for the 8831, then I’ll note where you will want to deviate and you’re otherwise safe to proceed regardless. I think they intentionally ship with old firmware for CUCM (Cisco Unified Call Manager) version compatibility reasons. Cisco, did you really have to make this process sooooo painful? Anyway, here’s what you’ll need to do if you want to upgrade an off the shelf 8831 conference phone to current firmware.
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