Polycom 4300T Benutzerhandbuch

 Configuring the 4300T

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A typical 4300T installation for enterprise video applications is depicted in the 

diagram below.  In this scenario, the 4300Ts are used to connect all of the video 

endpoints to the Gatekeeper.  The video endpoints should be configured to 

point to the LAN address of the 4300T as the Gatekeeper and the 4300T will 

proxy RAS and call setup messages to the Gatekeeper. 

The 4300T is installed at the private/public IP address boundary and provides 

the following functions: 

• WAN/LAN IP routing.

• Traffic shaping and priority queuing to guarantee high quality video 

traffic.  These mechanisms protect video and data traffic from contending 

for the same network resources to guarantee low latency and the highest 

NMS

PC

PC

PC

IP Phone

IP Phone

IP Phone

5300-E

PC

H.323
Endpoint

5300-S

5300-E

IP

Network

PSTN

PSTN

Aggregation Router

Aggregation

Router

4300T

Gateway

H.323

Laptop

IP Phone

IP Phone

H.323

Gatekeeper

PSTN

Gateway

Application

Server

Softswitch

Gateway