This document discusses Cisco Unified Communications Manager 9.1 licensing updates and license migration planning. It provides information on:
1. Changes to Extension Mobility licensing in CUCM 9.1(1a) where it is no longer a licensed user feature.
2. How CUCM and ELM work together to calculate license requirements based on user, device, and feature configuration and check compliance.
3. Examples of license requirements for different configuration scenarios including users only, devices only, and users with devices to help understand CUCM licensing.
4. Steps to take prior to migrating licenses to UC 9.x including fulfilling unused licenses, installing all licenses, and using the Cisco License Count Utility to