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@fredless
Last active December 16, 2025 00:04
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Cisco CUCM hacking

To keep that CUCM 12+ demo license ticking just a little while longer:

  1. Disable SLM:

    chmod 000 /usr/local/cm/bin/SmartLicenseMgr

  2. Prevent DRF from trying to back up SLM (if backups are something that matters to you):

    /usr/local/platform/script/slm/slm_drf_reg.py unregister

@bryantg9
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how do you run these commands?

@waghelapritesh
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waghelapritesh commented Oct 7, 2024

will this work on CUCM14 ? or 12.5

@Arashv1986
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Hi. this code is working on cucm(14) but is not working on cuc(14) . would you please help me ?

@seenamoshiri
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is there a way to disable the warning message on CM Administration panel?

@erwiower2
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I don't know, but I do know that the message goes away if a test license is deposited via the Smart Account.

Does anyone know a way to increase the DLU?

This guide does not work because there are no files named LicenseParams.xml and VMLicenseParams.xml!

Source: https://www.studocu.com/en-us/document/lurleen-b-wallace-community-college/network-communications/cucm-jailbreak-license/95889018

Therefore, I cannot execute these steps in CUCM 14:

Once you are in the above directory you will need to proceed to modify the values of the files respectively, ie nodes amount ( you should see >150< thats the amount of dlu's currently, here is where you can change the amount to whatever you want, using vi change the values in the LicenseParams.xml and VMLicenseParams.xml files "the new values need to match" in both files in order for the crack to work. Once you have modified both files with the values that you want, proceed to restart the service by going to

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