Mailing List Archive: Cisco: VOIP

odd phone behavior moving between clusters

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ewellnitzvoip at gmail

Jun 15, 2012, 12:05 PM

Post #1 of 3 (324 views)
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odd phone behavior moving between clusters

Okay...more odd behavior.

I have the same firmware load on my 6.1 cluster and my 8.6 cluster. I can
move a phone from 6.1 to 8.6 without any issue but moving back requires a
factory reset.

That isn't a good thing if for some reason I have to swing phones back to
the old cluster during the cutover.

Any ideas?

bernhard.albler at gmail

Jun 15, 2012, 12:13 PM

Post #2 of 3 (313 views)
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Re: odd phone behavior moving between clusters [In reply to]

Newer UCM versions utilize something called "Security by default", so
you will have to delete the security files to get back to an older
cluster.
Excellent write-ups by Jason Burns:
https://supportforums.cisco.com/docs/DOC-17679
+
https://supportforums.cisco.com/docs/DOC-15799

For rollbacks after an upgrade there is also a Enterprise parameter
called "Prepare Cluster for Rollback to pre-8.0"
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ewellnitzvoip at gmail

Jun 15, 2012, 12:27 PM

Post #3 of 3 (307 views)
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Re: odd phone behavior moving between clusters [In reply to]

I had considered security but I guess I didn't realize ITL is still
present in non-secure mode.

Rollback to the old cluster isn't going to be aviable option I guess.

On Fri, Jun 15, 2012 at 2:13 PM, Bernhard Albler
<bernhard.albler [at] gmail>wrote:

> Newer UCM versions utilize something called "Security by default", so
> you will have to delete the security files to get back to an older
> cluster.
> Excellent write-ups by Jason Burns:
> https://supportforums.cisco.com/docs/DOC-17679
> +
> https://supportforums.cisco.com/docs/DOC-15799
>
> For rollbacks after an upgrade there is also a Enterprise parameter
> called "Prepare Cluster for Rollback to pre-8.0"
>

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