I'm not, sure I completely understand your questions but I'll attempt to answer 
based on my understanding.

Yes, you can pre-config devices and users in CCM prior to migration. If they 
are Cisco IP phones, you'll need the MAC address and model of the phone at a 

If they are non Cisco IP phones, you'll need to pre configure 3rd party sip 
devices (which is a different license requirement than a Cisco IP phone).

Place the preconfigured dial plan that isnt migrated yet (on CCM), in a temp. 
partition that the already migrated phones cannot access. As you migrate, 
change that partition using BAT, to the correct partition for the portion of 
phones you migrated.



-------- Original Message --------
From: 秀王 <kiwi.vo...@gmail.com>
Sent: Tuesday, March 17, 2015 09:15 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] Migration strategy

>Currently the client have avaya and cisco linked together using SIP.
>Cisco UCM cluster have users in the production environment.
>I'm are going to cutover more sites from avaya to cisco. Is it possible to
>preconfigure the users, extension number (let's say 87XXX range), phones
>and the user device profiles in advance?
>I'm thinking that if I preconfigure those information, the cucm will think
>that those extension number (87XXX) are local and unregistered.
>Is there a way to make CUCM thinks that in order to reach 87XXX range, it
>will still reach out to Avaya using the SIP trunk? Is there any setting in
>the route pattern can do that?
>I thinking that CUCM will always find a more "exact" match locally instead
>of through other source like translation pattern or route pattern.
>cisco-voip mailing list
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