Polycom ViewStation EX4000 - Manual (Page 61)

Chapter 3 - Before You Deploy
© Polycom, Inc. 51
Notes
Older Polycom ViewStation systems and the RADVision MCUs
and gateways both support 10 Mbps half duplex only.
There are known issues with some older Cisco Catalyst 10/100
switches and video endpoints negotiating half/full duplex. If
the negotiation fails, the endpoint will still function, but the
system will experience video freezing every 3 to 5 seconds.
Predeployment Planning
The main factors to consider in planning the deployment are:
❑
LAN/WAN considerations — document the LANs, subnets,
and WAN links involved in the deployment.
❑
Capacity planning — assess the bandwidth requirements for
the deployment.
❑
Call processing considerations — define call processing
architecture and identify gatekeepers, define registration policy
and call policy.
❑
Dial plan — define details of services, routing, policies, zones,
and addressing.
❑
Server requirements — verify that all management software
will be installed on suitable equipment.