As I read Cisco IP Phones 7811, 7821, 7841, and 7861 SIP Protocol compatible with Cisco Unified Communications Manager version 8.5(1) and later, and now I have Cisco Unified Communications Manager version 8.6(2), but I facing problem on adding cisco IP phone 7821 to CUCM 8.6(2) the phone model not existin in the CUCM phone list.
Please note when I check compatibly matrix I found there is no cisco Unified CM device pack available for the Cisco IP Phone 7821.
I want to get confirm if Cisco 7821 SIP Phones can work on CUCM 8.6(2) or no if yes can work how ?
Also i have another inquiry how many days in cucm 8.6(2) demo ?