Polycom realpresence group series Administrator's Manual page 59

Example of Service Provider Firewall Traversal
Enterprise Location A
Ref.
Number Description
1 Polycom Video Border Proxy
2 Gatekeeper
3 IP network
4 Firewall
5 RealPresence Group system
6 Firewall
7 RealPresence Group system
To use this traversal, configure the RealPresence Group systems and firewalls as follows:
1 Enable firewall traversal on the RealPresence Group system.
a In the web interface, go to Admin Settings > Network > IP Network > Firewall.
b Select Enable H.460 Firewall Traversal.
2 Register the RealPresence Group system to an external Polycom VBP device that supports the
H.460.18 and H.460.19 standards.
3 Make sure that firewalls being traversed allow RealPresence Group systems behind them to open
outbound TCP and UDP connections.
 Firewalls with a stricter rule set should allow RealPresence Group systems to open at least the
following outbound TCP and UDP ports: 1720 (TCP), 14085-15084 (TCP) and 1719 (UDP),
16386-25386 (UDP).
 Firewalls should permit inbound traffic to TCP and UDP ports that have been opened earlier in the
outbound direction.
Polycom, Inc.
Service Provider
Enterprise Location B
Networks
59