[Asterisk-Users] Cisco 7960 firmware upgrade promblems

[Ben merrills]

And if it fails still, check for a buffer overrun on the configuration
file SIPDefault.cnf, the lower firmware versions had less memory
assigned for this file during the upgrade process. Caused me all sorts
of problems :)

Ben

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Geoff
Manning
Sent: 12 July 2005 16:12
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: RE: [Asterisk-Users] Cisco 7960 firmware upgrade promblems

Sergio Chersovani wrote:
>> 
> I know it's hard to find out infos at the cisco site.
> Maybe you can open a TAC case
> 
> Sergio

I did find this info:

http://www.voip-info.org/tiki-index.php?page=Asterisk%20phone%20cisco%20
79xx
&comments_threshold=0&comments_offset=0&comments_sort_mode=commentDate_d
esc&
comments_maxComments=10&comments_parentId=353#threadId358

<snip>
The two phones I purchased had "Application Load ID (AKA: firmware) of
"P003AM30". This is their "skinny" protocol load. If you're trying to do
sIP, you need a load that starts out "POS.....". You can not upgrade
from
"P00...." to "P0S....", you need to downgrade to "P0S30203" to get it
using
"POS...." firmware, then you can upgrade to the newer releases of the
SIP
firmware, with one extra thing to know.

You do not need to step through every version of he firmware, you can
jump
versions of firmware, but what you encouter is the issue with their
"signed
binaries" (ie: "*.sbn" files) that they have converted to.

If you have both a "*.bin" and a "*.sbn" file in the TFTP server root
directory, it will default to loading the "*.bin" (ie: unsigned binary),
which you do not want to do, since you need to convert over to signed
binaries, in order to continue upgrading to get to the higher versions
which
only come signed. If you try to load higher version binaries that are
not
signed, the phone will fail to load and give an error as such (which I
dont
have the exact verbiage of).

So, bottomline, go down to SIP 2.3, then go up to the first signed
binary,
then go to the final signed binary, then you ought to be there.
</snip>
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