When configuring Cisco Unified Communications Manager to use Busy Lamp Field Speed Dials
as a native presence feature, which function is required?

A.
Enable the “BLF for Call Lists” in the Cisco CallManager service parameter section.

B.
Do nothing; the “BLF for Call Lists” is enabled by default.

C.
Enable the “BLF for Call Lists” in the Enterprise parameter section.

D.
Enable the “BLF for Call Lists” in the Cisco Unified Presence Server.