Polycom V2IU 6400-S User Manual page 9

Headquarters
H.323 Application
Gatekeeper Server
PSTN
Gateway
PSTN
Branch Office
Gateway
IP Phone
The 6400-S is designed to protect managed VoIP service providers and
enterprise customers from network-based attacks. It combines topology
hiding, dynamic session admission control and stateful packet inspection to
secure critical voice, video and data infrastructure components.This chapter
introduces the:
• Functional features
• Hardware features
• Management features
Softswitch
NMS
6400-S
IP
Network
T-1/E-1
Aggregation
4300T
H.323
Laptop
PC PC
6400-E
IP Phone
Aggregation Router
NxT-1/E-1
Company B
Router
H.323
Endpoint
IP Phone
Introduction
PC
IP Phone
IP Phone
PSTN
6400-E
Gateway
PC
EM016
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