Isdn/Pstn - Polycom realpresence 1800 Administrator's Manual

ISDN/PSTN

RMX 1800 with 3 DSP cards with built-in ISDN supports 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.
E1 and T1 connections cannot be used simultaneously.
The following table lists the ISDN supported bit rates and their respective participant connection capacities
per RTM ISDN card:
RMX 2000/4000 ISDN – E1/T1 Connection Capacity vs. Bit rate
Bit Rates
(Kbps)
(Bonded)
64
128
192
256
320
384
512
768
1152
1472
1536
1920
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
MCU Resource Management by RealPresence Resource Manager, and
Polycom RealPresence DMA System
When the RealPresence Resource Manager, and Polycom RealPresence DMA system are part of the
solution, following a request by the RealPresence Resource Manager and Polycom RealPresence DMA
system, the MCU will send updates on resource usage to the DMA, which updates its own resource usage
for the MCU. This provides better management of the Collaboration Server resources by the RealPresence
Resource Manager, and Polycom RealPresence DMA system.
Polycom®, Inc.
Number of Participants per RTM ISDN Card
E1 T1
120 92
40 40
40 40
40 40
40 40
34 34
25 25
17 17
11 11
9 9
8 8
7 6
Administration and Utilities
Type
Voice / PSTN
Video
708