Optional Functions
A gatekeeper can implement the following functions. All of these functions,
except the supplementary services and directory services, are available with
Cisco’s Multimedia Conference Manager gatekeeper.The IP/VC embedded
gatekeepers do offer call and bandwidth management as well as call forwarding
(a supplementary service), though they do not offer authentication, authorization,
or directory services.They do provide some call accounting, though only through
special third-party software.
You may decide to implement some or all of these functions based on the
exact needs of your network. Some functions, such as authorization and
accounting, you may not implement initially, but may find useful at a later time.