
MCUs  MCU Management
Polycom, Inc.  121
The Polycom DMA system supports the use of Cisco Codian 4200, 4500, and MSE 
8000 series MCUs as part of the Conference Manager’s conferencing resource 
pool, but their Media Port Reservation feature is not supported. This feature must 
be set to Disabled on Cisco Codian MCUs in order to use them as part of the 
Conference Manager’s conferencing resource pool. 
The Polycom DMA system supports the use of Polycom MGC MCUs, but not as 
part of the Conference Manager’s conferencing resource pool. They can register 
with the Call Server as standalone MCUs and/or ISDN gateways. 
When a Polycom RMX MCU is functioning as an ISDN gateway, each call through 
the gateway consumes two ports, one for the ISDN side and one for the H.323 side. 
The ports used for gateway calls aren’t available for conferences, so gateway 
operations may significantly reduce the available conferencing resources. 
Table 6-1 Information in the MCU list 
Column  Description
Connection and service status and capabilities: 
Connected Disconnected 
Connected securely (encrypted connection) 
In service Out of service 
Busied out Not licensed 
Supports conference recording 
Doesn’t support conference recording 
Supports shared number dialing IVR service 
Functions as a gateway 
Warning 
Hover over an icon to see the associated status message. 
Name  The name of the MCU. 
Model  The type of MCU. 
Version  The version of software on the MCU. 
IP Addresses  The IP address for the MCU’s management interface (M) 
and signaling interface (S).