[cisco-voip] prevent IP Phone from up/downgrading FW in LAB when changing CallManagers

CIPS cisco at cips.nl
Sun Apr 6 12:05:19 EDT 2008


Jonathan,

Thanx for the quick reply. Do you, by any change, know if this will also
work for the device load on the device level?

Thanx.

-----Original Message-----
From: Jonathan Charles [mailto:jonvoip at gmail.com] 
Sent: zondag 6 april 2008 17:59
To: CIPS
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] prevent IP Phone from up/downgrading FW in LAB
when changing CallManagers

Enter a bogus firmware filename in Device Defaults



Jonathan

On Sun, Apr 6, 2008 at 10:52 AM, CIPS <cisco at cips.nl> wrote:
> How can I prevent an IP Phone to download a new FW every time I connect it
>  to a different CCM?
>
>  I have a LAB with 4 different IP Phones and one HW platform with CCM 5
and 6
>  VMWare images.
>  Every time I change the CCM from 5 to 6 or the other way around the IP
>  Phones download new FW to do an upgrade or downgrade.
>  Is there a simple way I can turn this off?
>
>  I know of separate TFTP which is shared between CCM's, I also know of
>  keeping the FW the same on both Servers.
>  But isn't there an easier way? Service param somewhere maybe?
>
>  Thanks in advance.
>
>  C.
>
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