[cisco-voip] Upgrade CCM 4.2.3 to CUCM 8.5

[Matthew Berry]

Alessandro -

When you upgrade from CCM 4.2.3 to CUCM 8.5, you'll for sure need to 
update the firmware in your phones.  The updated TFTP server should 
address this for you once your phones register for the first time with 
the newer CUCM cluster.

What model of phones do you currently have?

I don't understand your concern about cost concerning phone firmware.

Matthew

On 3/1/11 8:10 AM, kpyib at tin.it wrote:
>  Hi Guys, I need to upgrade CCM 4.2.3 to CUCM 8.5, Cisco telle me that 
> I must, before upgrade CUCM, upgrade Firware Phone with last firmware 
> files.
>
> For me is much expensive to do so!!!!
>
> The question is, Is really necessary to upgrade Firmware phones before 
> upgrading CUCM 4.2.3 to CUCM 8.5?
>
> thank you for the answers
>
> Regards
>
> Alessandro Bertacco
>
>
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