Hi Onildo,
As per the following link
https://supportforums.cisco.com/document/12172606/cisco-prime-infrastructure-faq
Q:11 Can Cisco Unified Call Manager (CUCM) and/or IP phone be managed via Prime Infrastructure?
No, Prime Infrastructure does not support CUCM or IP Phones. Prime Collaboration is the right platform for these devices.
So, you will require both solutions.
Manish