Which three Cisco Unified CallManager configuration steps are required to support third party SIP phones? (Choose three.)

A.
configure the device in Cisco Unified CallManager

B.
change the proxy address in the SIP phone to an IP address or the Fully Qualified Domain Name (FQDN) of
Cisco Unified CallManager

C.
associate the device with the end user

D.
configure the phone with the TLS username and password

E.
configure the end user in Cisco Unified CallManager

F.
add the MAC address of the Cisco Unified CallManager server to the SIP phone configuration page

Explanation:

Perform the following steps when configuring third-party SIP endpoints:
– Configure an end user in Cisco Unified Communications Manager.
– Configure the third-party SIP phone and its directory numbers in Cisco Unified Communications

14
Cisco 642-447 Exam

Manager.
– Select the configured end user as Digest User on the third-party SIP phone configuration window.
– Configure the third-party SIP phone with the IP address of Cisco Unified Communications Manager (proxy address), end-user ID, digest credentials (optional), and directory numbers