Cisco 7925 Phone Load...CUCM Upgrade from 851 to 851su3

[THOMAS CARROLL]

I need to upgrade CUCM cluster from 851 to 851su3...I have already installed an upgraded phone load for the 7925 wireless phones (1.4.2es3) that is newer release of load than the upgrade (1.4.1) I'm going to. My question is, does the configuration and all of the TFTP files get copied over during the upgrade process so I dont have to worry/consider about phones "downgrading themselves" ?

[Rob Huffman]

Hi Thomas,

Yeah, if you're not careful the phones will actually try to load the "New"

Device defaults which in your case would mean a firmware downgrade for the

7925's. One of the best answers I've seen in regards to preventing this from happening

is from one of my faves Bill Bell from CNC (+5 Bill)

https://supportforums.cisco.com/message/3063642#3063642

Cheers!

Rob

"Show a little faith, there's magic in the night" - Springsteen

[THOMAS CARROLL]

Thanks a million.. I dont post much, but to get an answer from the "Almighty Rob" is an honor! I messed around in my lab, and right, make sure TFTP is stopped because the phones will try to downgrade if the defaults are not changed! Again, thanks a million!

[Rob Huffman]

Hi Thomas,

You are most welcome Thanks for the very kind (but highly exaggerated) words as well

And thanks for posting back with your results as well. Much appreciated. +5

Cheers!

Rob

"Show a little faith, there's magic in the night" - Springsteen