Hi Muhammad,
Here are the required steps to get a new Unity License (associated to new server's Mac)
Q. If the NIC of a customer fails, how do they receive a replacement license?
A. The licensing team handles switching licenses. Send an email to licensing@cisco.com with the old NIC - Mac address and the NIC - Mac address from the new server. Explain why you want to switch servers. The licensing team deactivates the license associated with the old server and will re-issue it for the new server.
From this Licensing doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_qanda_item09186a0080094ce5.shtml#q20
Replacing License Files When Replacing a Cisco Unity Server
To replace the server on which Cisco Unity is installed, you must obtain new license files that will be tied to the NIC in the new computer. Do the following two procedures in the order listed.
To Get the MAC Address of the Replacement Cisco Unity Server
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Step 1 On the replacement computer, on the Windows Start menu, click Programs > Accessories > Command Prompt.
Step 2 In the Command Prompt window, enter ipconfig /all, and press Enter.
Step 3 Write down the value of Physical Address, excluding the hyphens, or save it to a file that you can access during online registration. (For example, if the physical address is 00-A1-B2-C3-D4-E5, record 00A1B2C3D4E5.)
If the server contains more than one NIC, one value will appear for each NIC. Use the value for the primary NIC.
Step 4 Close the Command Prompt window.
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To Obtain a Replacement License File
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Send an e-mail to licensing@cisco.com with the following information:
A request for a replacement license file.
The MAC address of the current server.
The MAC address of the replacement computer.
A statement that you will delete the Cisco Unity 4.0(x) license from its current computer after the new server is installed.
Within one business day, you will receive the replacement license file attached to an e-mail from licensing@cisco.com.
From this good White Paper doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps2237/products_white_paper09186a008019c743.shtml#wp999063
Hope this helps!
Rob
