Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
21-22
Polycom, Inc.
The following diagram displays the RealPresence Collaboration Server (RMX) Resource
Report, displaying a resource graph that indicates the number of voice and video ports that
are available or occupied in the MCU.
ISDN/PSTN
The
RMX 1500
supports one
ISDN
card with
4 E1
/
T1 PRI
lines.
On the
RMX 2000/4000
a maximum of two
RTM ISDN
cards are supported, each providing
connection for up to either 7
E1
or 9
T1 PRI
lines.
On
RMX 1500/2000/4000
,
E1
and
T1
connections cannot be used simultaneously.
Table 21-11 lists the
ISDN
supported bit rates and their respective participant connection
capacities per
RTM ISDN
card:
Table 21-11
ISDN – E1/T1 Connection Capacity vs. Bit rate
Bit Rates
(Kbps)
(Bonded)
Number of Participants
per RTM ISDN Card
E1
T1
128
40
40
If the conference bit rate is 128Kbps, participants
connecting at bit rates lower than 128Kbps are
disconnected.
If the conference bit rate is above 128Kbps but does
not match any of the bonded bit rates, participants are
connected at the highest bonded bit rate that is less
than the conference bit rate.
For example: If the conference bit rate is 1024Kbps,
the participant is connected at 768Kbps.
192
40
40
256
40
40
320
40
40
384
34
34
512
25
25
768
17
17
1152
11
11
1472
9
9
1536
8
8
1920
7
6
Содержание RealPresence 2000
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