There isn't one, search CCO for unrestricted + communications manager and you'll pretty much get only RNs/data sheets where this is explained.
The only difference is that one has encryption enabled and the other one does not.
U.S. Export Restrictions on Cisco Unified Communications Manager
The encryption capabilities included in Cisco Unified Communications Manager are subject to U.S. export restrictions. Previous versions of Cisco Unified Communications Manager (with the exception of Release 7.1(5)) were all classified as U.S. export "Restricted". This restriction can cause delays and additional complexity for some customers in other countries. Therefore, Cisco Unified Communications Manager 8.5 is offered in two varieties to best meet the needs of all customers. Customers may order either the U.S. export "Restricted" or U.S. export "Unrestricted" versions of the product. The U.S. export Restricted version of Cisco Unified Communications Manager provides all the encryption capabilities inherent in previous U.S. export Restricted releases. The U.S. export Unrestricted version of Cisco Unified Communications Manager does not provide signaling and media encryption, but is otherwise functionally equivalent (including the encryption of other types of data) to the U.S. export Restricted version of Cisco Unified Communications Manager. Deploying the U.S. export Unrestricted version of Cisco Unified Communications Manager is a choice that customers should make carefully. After the U.S. export Unrestricted version of Cisco Unified Communications Manager is installed, it cannot be converted into any U.S. export Restricted version of Cisco Unified Communications Manager. If a customer wishes to change from Unrestricted to Restricted, a full reinstall and reprovisioning is required.
HTH
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HTH
java
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