Which three requirements must be met to share Enhanced Location Based Call Admission Control bandwidth usage between clusters?

Which three requirements must be met to share Enhanced Location Based Call Admission Control
bandwidth usage between clusters? (Choose three.)

A.
The Cisco Unified Communications Manager version must be 8.6 or higher.

B.
The location name must be the same on both clusters.

C.
SIP ICT must use the Shadow location.

D.
The Location Bandwidth Manager Service should be started on only two servers in each cluster.

E.
A Location Bandwidth Manager Hub Group must be created for each cluster.

F.
Links must be created to the Shadow location.

Explanation:
Recommendations and Design Considerations for Unified CM Session Management Edition
Deployments
• All leaf clusters that support E-L CAC should be enabled for intercluster E-L CAC with SME.
• SME can be used as a centralized bootstrap hub for the E-L CAC intercluster hub replication
network. See LBM Hub Replication Network, for more information.
• All trunks to leaf clusters supporting E-L CAC should be SIP trunks placed in the shadow location
to enable E-L CAC on the trunk between SME and the leaf clusters supporting E-L CAC.
• For TelePresence video interoperability, see the section on Call Admission Control Design
Recommendations for TelePresence Video Interoperability Architectures.
• Connectivity from SME to any trunk or device other than a Unified CM that supports E-L CAC
(some examples are third-party PBXs, gateways, Unified CM clusters prior to release 9.0 that do not
support E-L CAC, voice messaging ports or trunks to conference bridges, Cisco Video
Communications Server, and so forth) should be configured in a location other than a phantom or
shadow location. The reason for this is that both phantom and shadow locations are nonterminating locations; that is, they relay information about locations and are effectively placeholders
for user-defined locations on other clusters. Phantom locations are legacy locations that allow for
the transmission of location information in versions of Unified CM prior to 9.0, but they are not

supported with Unified CM 9.x Enhanced Locations CAC. Shadow locations are special locations that
enable trunks between Unified CM clusters that support E-L CAC to accomplish it end-to-end.
• SME can be used as a locations and link management cluster