Medianet Reference Guide - Cisco

Application-Specific Management Functionality
Chapter 6
Medianet Management and Visibility Design Considerations
Figure 6-30
Centralized Configuration Management via the Cisco Unified Communications
Manager
The detailed configuration for each Cisco TelePresence System endpoint can be viewed and modified by
clicking on each device listed under the Device Name column shown in Figure 6-30. Included within the
configuration of each Cisco TelePresence System endpoint is the security configuration. TelePresence
security includes the use of Secure Real-time Transport Protocol (SRTP) for confidentiality and data
authentication of the audio and video media streams; as well as TLS for confidentiality and data
authentication of the SIP signaling and web services signaling between the various TelePresence
components. For a thorough discussion of Cisco TelePresence security, see Cisco TelePresence Secure
Communications and Signaling at the following URL:
http://www.cisco.com/en/US/docs/solutions/Enterprise/Video/telepresence.html.
Cisco Unified Communications Manager also plays a role in accounting management, in that call detail
records (CDRs) can be captured and used to bill back end users for TelePresence room usage.
Cisco Unified Communications Manager can also play a role in performance management, in terms of
bandwidth allocation, using static location-based CAC, although it is not in widespread use today for
TelePresence deployments. The amount of bandwidth used for the audio and video components of an
individual TelePresence call can be centrally controlled per zone via Cisco Unified Communications
Manager. Also the total amount of bandwidth allocated for aggregate audio and video traffic to and from
a location can be centrally controlled, via Cisco Unified Communications Manager. When a new
TelePresence call requested via SIP signaling results in the amount of bandwidth allocated either for the
individual call or aggregated for the entire location exceeding the configured zone or location
bandwidth, the new call does not proceed. This helps maintain the overall quality of ongoing
TelePresence calls. Because static location-based CAC has no knowledge of the underlying network
infrastructure, it is typically effective only in hub-and-spoke network designs. Cisco offers
location-based CAC integrated with Resource Reservation Protocol (RSVP), using an RSVP agent
device, for VoIP and Cisco Unified Communications Manager-based Desktop Video Conferencing.
However, this is currently not supported for Cisco TelePresence deployments.
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