An enterprise has deployed eSight network management, DNS server and DHCP server on its existing network.
For deploying 200 IP phones, which of the following methods cannot achieve batch configuration of TR069 parameters? ()
A . Configure the eSight domain name and IP address mapping in the DNS server
B . Batch delivery via DHCP Option 246 field
C . Use access scan
D . Through the web configuration interface of IP Phone
Answer: D