Polycom realpresence 1800 Administrator's Manual page 1055

Solution Architecture Components
Component
Collaboration Server
MLA
Endpoints
Polycom®, Inc.
Version Description
7.6 and higher MCU:
• Functions as the network bridge for multipoint calls between H.323,
SIP and TIP endpoints.
• The Collaboration Server can be interfaced to CUCM using a SIP
trunk, enabling CTS to join multipoint calls on Collaboration Server.
Signaling goes through the CUCM while the media in TIP format
goes directly between the CTS and Collaboration Server.
• The Collaboration Server must be configured to route outbound SIP
calls to the DMA.
• The H.323 Network Service of the Collaboration Server should
register it's dial prefix with the DMA gatekeeper.
• When the DMA is not used an Ad-hoc Entry Queue, designated as
Transit Entry Queue, must be pre-defined on the Collaboration
Server.
3.0.3 Multipoint Layout Application
Required for managing multi-screen endpoint layouts for Cisco CTS
3XXX, Polycom TPX, RPX or OTX systems.
Telephony, desktop and room systems.
• H.323 endpoints must register to the IOS gatekeeper.
• Polycom SIP endpoints must register to DMA as SIP Proxy when
DMA is used.
• H.323 endpoints must register to the IOS gatekeeper.
Appendix I - Polycom Open Collaboration Network (POCN)
1024