DMA OperationsGuide MCUs
140 Polycom, Inc.
Enable for conference
rooms Makes the MCU available as a conferencing resource
for the Polycom DMA system’s Conference Manager.
Up to 64 MCUs can be enabled for conference rooms.
Caution: Before adding an MCU to the DMA system’s
conferencing resources, make sure that MCU isn’t
already a RealPresence Resource Manager system
conferencing resource. The RealPresence Resource
Manager system must have exclusive use of any MCUs
on which it directly schedules conferences.
Enable gateway profiles Makes the MCU available for selection as an ISDN
gateway device and enables the Gateway Profiles tab
for configuring gateway session profiles.
Gateway session profiles indicate to the MCU the
bandwidth parameters to be used for the ISDN
connection. They can be used for:
•ISDN gateway calls to the MCU’s direct dial-in
prefix. In this case, the caller specifies the session
profile prefix in the dial string:
<direct dial-in prefix><session profile
prefix><delimiter><E.164 number>
•Calls to simplified ISDN gateway dialing prefixes
(see “Add Simplified ISDN Gateway Dialing Prefix
Dialog Box” on page277). In this case, the DMA
system selects the MCU/gateway and its session
profile. See “ISDN Gateway Selection Process” on
page147.
Class of service Select to specify the default class of service and the bit
rate limits for this MCU.
If specified, calls to the MCU use its class of service or
the calling endpoint’s, whichever is better.
Maximum bit rate (kbps) Select the maximum bit rate for calls to this MCU.
Minimum downspeed bit
rate (kbps) Select the minimum bit rate to which calls to this MCU
can be downspeeded to manage bandwidth. If this
minimum isn’t available, the call is dropped.
The minimum that applies to a call is the higher of the
MCU’s and the calling endpoint’s.
Permanent Prevents the MCU’s registration with the Call Server
from ever expiring. For MCUs, this option should always
be selected (the default).
Table 6-3 Add MCU dialog box
Field Description