[cisco-voip] Subject: IP phones in Disaster Recovery Site

[Ryan Ratliff]

With the assumption that the migration is to a new model and/or protocol this could entail DLU changes, even using the same database record (ie migrating a 7940 to a 7970 would require an extra DLU).  

For updating the same device without BAT you just change the device name to reference the new mac address.  I don't know off the top of my head if a BAT custom file update can change device name, but that may work for you.

Either way I'd recommend lots of testing with a single phone so you know exactly what you can and cannot do.  Don't just go by the docs, verify for yourself what will and won't work.

-Ryan

On May 31, 2010, at 9:33 AM, Ovidiu at romandie.com wrote:

> BAT + Phone migration looks interesting but with several limitations.
> 
> Extract from CUCM System Guide
> 
> The Phone Migration window allows you to migrate feature, user, and line 
> configuration for a phone to a different phone. You can migrate data to a 
> different phone model or to the same phone model that runs a different 
> protocol. 
> ...
> 
> Before you can migrate phone configuration to a new phone, consider the 
> following information:
> - The new phone uses the same existing database record as the original phone, 
> so migrating the phone configuration to the new phone removes the 
> configuration for the original phone from Cisco Unified Communications 
> Manager Administration/the Cisco Unified Communications Manager database
> - Before you migrate the phone configuration to a new phone, ensure that you 
> have enough device license units for the new phone
> ...
> 
> 
> Questions:
> 
> - different phone model or different protocol 
>  I wonder if this is a hard requirement. Can we use it to migrate from a SCCP 
> 7962 to another SCCP 7962 if the first phone is dead?
> 
> - "ensure that you have enough device license units for the new phone"
>  This one is tricky... Imagine that Autoregistration is disabled, if the new phone 
> uses the same existing database record as the original phone I don't see why 
> we need additional DLU's. The new phone would register and the old one will 
> get rejected. That works only if it's a simple swap of the MAC address in the 
> Database.
> 
> 
> Has anyone used this and wants to share his experience ?
> 
> Any other ideas are welcomed.
> 
> Thanks
> Ovidiu
> 
> 
> En réponse à "Ovidiu at romandie.com" <ovidiu at romandie.com> :
>> ------------------ Début du message d'origine --------------------
>> 
>> Yes, the cluster is available. DR is for a couple hundreds IP
>> phone that are on 
>> the DR site and have to be available for use as soon as the DR
>> is launched.
>> 
>> 
>> En réponse à "Jason Aarons (US)" <jason.aarons at us.didata.com>
>> :
>>> ------------------ Début du message d'origine
>> --------------------
>>> 
>>> In your DR scenario is the Publisher available?
>>> 
>>> -----Original Message-----
>>> From: cisco-voip-bounces at puck.nether.net
>>> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Ed
>>> Leatherman
>>> Sent: Monday, May 31, 2010 8:49 AM
>>> To: Ovidiu at romandie.com
>>> Cc: cisco-voip at puck.nether.net
>>> Subject: Re: [cisco-voip] Subject: IP phones in Disaster
>>> Recovery Site
>>> 
>>> I would like the BAT option myself.. have a file ready to go
>>> and
>>> uploaded, and if you need to execute the DR plan, just go in
>>> and
>>> schedule it to import immediately. Either way you are going
>> to
>>> have to
>>> touch call manager to make it work, even if its just
>>> unchecking some
>>> box somewhere to make phones active. This way your just
>> going
>>> in and
>>> doing 1 thing in BAT instead of touching each DR phone
>>> individually.
>>> Should be easier to document for your plan too.
>>> 
>>> On Mon, May 31, 2010 at 6:01 AM, Ovidiu at romandie.com
>>> <ovidiu at romandie.com> wrote:
>>>> Hi everyone
>>>> 
>>>> Looking for the best way to provision Disaster Recovery IP
>>> phones in
>>>> CUCM 7.  We have to provision real phones but without
>>> consuming
>>>> DLUs or not many in any case.
>>>> 
>>>> Seen a while back in one of the presentations a check-box
>>> that said
>>>> the phone is not active and hence does not consume DLUs.
>> Is
>>> this
>>>> usable in this case? (Didn't have a lot of time to google
>>> it)
>>>> 
>>>> There's a BAT Phone migration option but have never used
>>> it...
>>>> 
>>>> What are you guys using? Any pitfalls I should avoid?
>>>> 
>>>> Thanks
>>>> 
>>>> Ovidiu
>>>> _______________________________________________
>>>> cisco-voip mailing list
>>>> cisco-voip at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> Ed Leatherman
>>> 
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>> 
>> 
>> ------------------- Fin du message d'origine ---------------------
> 
> 
> 
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