I received the below method from cisco licencing but i don't find the requested menu "System - Licensing" in the administration web page of CUCM 4.2 :
When you are upgrading from Cisco Unified Communications Manager (CUCM) version 3.x or 4.x to 5.x or later, you must migrate your DLUs and Nodes licenses. This is ONLY for version 3.x or 4.x to 5.x or later. When you are upgrading from versions 5.x and later, DO NOT need to manually migrate your licenses. Your existing licenses will work with later version of the software.
There are two different methods for performing migrations; self service portal and manual license issuance.
1. Self Service Portal: (Preferred Method)
Migrations are handled via a portal on CCO.
As part of the upgrade process an xml file is generated and this file is required to obtain your new license key. You need to copy and paste the xml file at this website, fill out the appropriate fields and a license will be generated and emailed to you.
Following are the self service migration instructions:
How to register existing licenses and request for new licenses:
Step 1: In Cisco Call Manager Administration, choose System > Licensing > License File Upload. The License File Upload window displays.
Step 2: Click View File. A pop-up window displays that has the license information for existing phones and nodes. Copy this information. To copy the contents on this window, use Ctrl-A (Select All) and Ctrl-C (Copy).
Step 3: You need to go to License Registration Page (URL hyperlink: https://tools.cisco.com/SWIFT/Licensing/PrivateRegistrationServlet?FormId=806) and paste the file contents (using Ctrl-V) into the text box provided.
Step 4: Enter the MAC address of the Cisco Communications Manager server for which the licenses are being requested, and a valid email ID.
Step 5: To obtain the license file, click Submit. A license file is generated.
Step 6: The license file must be uploaded to the server with the matching MAC .
Can you help please ?