[cisco-voip] CUCM 8.5.1(SU1) phone firmware upgrade procedure

[Florian Kroessbacher]

Hy Hefin

go to something between 8.3(3) - 8.5(2)

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/firmware/9_1_1/english/release/notes/7900_911.html#wp42493

*Note *For all SCCP firmware upgrades from firmware release versions 
earlier than 8.3(3) to version 9.1(1)SR1 or greater, you must first 
upgrade your firmware to an intermediate version (8.3(3) - 8.5(2)) then 
upgrade to 9.1(1)SR1.

Am 02.06.2011 09:52, schrieb Hefin James [ahj]:
> Hi,
> We've recently upgraded to CUCM 8.5.1(SU1) a couple of months ago, and all the 7911's that we have are now running SCCP11.9-1-1SR1S.
> However, we had quite a few phone's in storage, and are now rolling these phones out.
> These phones (more 7911's) have an old firmware version of SCCP11.8-3-2S, and I need to get them up to version SCCP11.9-1-1SR1S.
> If I try to upgrade them directly, I get Auth-Fail. Does anybody know which interim loads I need to have before I can get from 8-3-2S to 9-1-1SR1S?
>
> Thanks,
> Hefin
>
>
>
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