Which Call Control Discovery function allows the local Cisco Unified Communications Manager to
listen for advertisements from remote call-control entities that use the SAF network?

A.
CCD advertising service

B.
CCD requesting service

C.
SAF forwarder

D.
SAF enabled trunks

E.
CCD registration service

Explanation:
SAF and CCD will allow large distributed multi-cluster deployments to have the directory number
(DN) ranges of each call routing element advertised dynamically over SAF. Cisco routers act as
SAF Forwarders (SAFF), while the call routing elements (e.g. CUCM) act as clients that register
with the routers to advertise their DN ranges and listen to the advertisements of other routers.