Nat (Network Address Translation) Traversal - Polycom RealPresence 4000 Administrator's Manual

Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator's Guide

NAT (Network Address Translation) Traversal

NAT Traversal is a set of techniques enabling participants behind firewalls to connect to
conferences, hosted on the RMX, remotely using the internet.
Session Border Controller (SBC)
All signaling and media for both SIP and H.323 will be routed through an SBC.
The following SBC environments are supported:
•
•
•
Deployment Architectures
The following NAT Traversal topologies are given as examples. Actual deployments will
depend on user requirements and available infrastructure:
Remote Connection Using the Internet
The following Remote Connection call flow options are supported:
Table 16-40
Enterprise Client
Environment
16-76
SAM - a Polycom SBC
Acme Packet - a 3rd party SBC
VBP - Polycom Video Border Proxy
Remote Connection
Registered
SIP / H.323 Yes
SIP / H.323 No
SBC

SAM / Acme Packet

SAM / Acme Packet
CMA Client
Registered Environment
Yes SIP
No SIP
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