ATL Telecom IP-3072 PoE Smart Office IP Telephone - Manual (Page 50)

Page 50
MOCET IP3072 Smart Office IP Desk Phone Administrators' Guide
After uploading new OCT template file on IP3072 phone, please reboot the
phone. After the phone reboots, you can find the new added templates on
the phone menu.
When new OCT templates are added on IP3072 phone, the new templates
will not replace of the 5 built-in OCT templates.