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Call Manager Licensing

Hi, I would like to know which MAC address do you use in order to download license file? License MAC or MAC Address? I am running CM 8.6 on virtual machine. please advice.



Call Manager Licensing


You should use the License MAC to request the license for CM 8.6 on virtual machine.



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Call Manager Licensing


To add to great tip from Anand. Use answer file generator to get the License MAC.


Ronak patel

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Regards Ronak Patel Rate all helpful post by clicking stars below the answer.
New Member

Call Manager Licensing

Thanks for your respond guys, one more, I see there is License MAC under OS admin-show-Network. is it valid License MAC to use or will it be defferent to the one I should generate as suggested above? @Ronak's comment.

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Re: Call Manager Licensing

Hi Abel,

Here are the methods that depend on "pre" or "post" installation

Customer Impact from New Licensing Procedures

Cisco Unified Communications Manager on Virtualized Servers uses a  different licensing model than Cisco Unified Communications Manager on  an MCS server. The MAC address of the NIC card is no longer used to  associate the license to the server.

Instead, the license gets associated to a license MAC, which is a 12  digit HEX value created by hashing the following parameters that you  configure on the server:

Time zone

NTP server 1 (or "none")

NIC speed (or "auto")


IP Address (or "dhcp")

IP Mask (or "dhcp")

Gateway Address (or "dhcp")

Primary DNS (or "dhcp")

SMTP server (or "none")

Certificate Information (Organization, Unit, Location, State, Country)

The ways to obtain the license MAC are as follows:

Before installation, use the Answer File Generator ( When you generate the answer file, you also get the license MAC.

Note If  you use this method, ensure that you enter the identical parameter  values in the Answer File Generator and the Cisco Unified Communications  Manager installation program, or the license will be invalid.

After installation, navigate to Show > System in Cisco Unified Communications Manager Administration.

After installation, use the CLI command show status.

Obtaining New Licenses

The process to redeem a Product Activation Key (PAK) for licenses at is changed for a license MAC. When redeeming a  PAK for a license MAC at this URL, you get prompted to select the type  of license that you want to obtain:

A physical MAC address — this is used when Cisco Unified Communications Manager will be installed on an MCS server.

A  license MAC address — this is used when Cisco Unified Communications  Manager will be installed on Cisco Unified Communications Manager on  Virtualized Servers.

After you make this selection, the generation and installation of the license file follows the same process.

Here is the cli > show status

show status

This command displays basic platform status.

Command syntax

show status

Usage Guidelines

This command displays the following basic platform status:

Host name


Time zone


Product version

Platform version

CPU usage

Memory and disk usage

License MAC



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