I did one the other day.
I tried a 6863 but it didn't work first try so I tried 6867 and it worked.
Just set it up as a generic SIP device.
So,
On the controller:
- create CoS, eg 22 with the correct settings
- create SIP Device profile #, eg 22
- create a generic SIP device give it extension number, eg 1234 & SIP password 1234, CoS 22, and a SIP Device Option 22
On the handset:
- LLDP on the network switch gives it the Voice VLAN
- DHCP gives it an IP address
- web-browse to the IP address and login to the phone with admin/22222
- give it its extension number 1234 and the SIP password 1234 and the controller IP address on port 5060