Change CUCM server to the new one and have to reset IP Phone

[Nashja]

Hi All,

Due to I change my CUCM to the new CUCM server, I have to reset my IP Phone to register with the new CUCM server (I use the same IP as the existing one). I don't want to go onsite to perform hardware reset on IP Phone.

Does anyone have other method to reset IP Phone to get new configuration from new CUCM?

Thank you.

Nash.

[Rajan]

Hi Nash,

you could use some application like below to remotely access and reset phones:

https://www.unifiedfx.com/unifiedfx-free-software/phoneview-free-lab-edition

HTH
Rajan
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[Nashja]

I am trying to use your recommendation application. It is quite difficult to use it. I am working on it.

By the way, Have you ever use it before? and Is it OK to reset the IP phone?

Thank you.

Nash

[Rajan]

Hi Nash,

Its not that difficult. I have used it before. you can use it to remotely access phone and do things like hard reset or delete ITL if needed, when you cant access the phone physically.

HTH
Rajan

[Dennis Mink]

change your option 150 to point to the new server. then go into your old system and reset the phones, that should force them to connect to the new option 150 (cucm).

[Dennis Mink]

change the option 150 to point to your new system, then reset the phones from your old system. otherwise shut on shut on a port range. (how many phone we talking about anyway?)

[Nashja]

Hi Dennis,

As I mention above, I have to use the same ip address of the existing server and the new server. How can I change the option 150 to point to the new server?

There are about 400 IP Phones in this server.

Thank you.

Nash

[Jaime Valencia]

Is that new CUCM part of the same cluster where the phone was previously registered??

Or is that a new server, in a new/different cluster?

[Nashja]

Hi Jaime,

This is the new server in the different cluster.

Thank you.

Nash

[Jaime Valencia]

Have you taken care of the ITL??

[Nashja]

Hi Jaime,

I never adjust ITL before. Could you please advise me.

Thank you.

Nash

[Jaime Valencia]

Read here and there's a lot more info on ITL/SBD available

https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/116232-technote-sbd-00.html

[Nashja]

Hi Jaime,

After I tried to find the solution in the link as your recommendation, there is no any solution in the document to remote to reset all phones. I still need to onsite to reset the phone :(

Please find the below sentences for more information.

• If either TVS.pem or CallManager.pem is regenerated, TVS and TFTP should be restarted and phones reset in order to obtain the new ITL files. Newer versions of CUCM handle this phone reset automatically and warn the user at certificate regeneration time.
• There is currently no method to delete all ITLs from a phone remotely provided by Cisco. That is why the procedures and interactions described in this document are so important to take into account.

Thank you for your advice.

Nash

[Jaime Valencia]

If you're past the point in which you can use the rollback parameter, certificate consolidation, etc. then your option is to buy a 3rd party to bulk delete the ITL, or do it manually.

http://docwiki.cisco.com/wiki/Endpoints_FAQ#How_can_I_bulk_remove_ITL_.2F_CTL_files_from_phones.3F.3F